diff --git a/index.js b/index.js
deleted file mode 100644
index 77c939a..0000000
--- a/index.js
+++ /dev/null
@@ -1,327 +0,0 @@
-var net = require('net');
-var hl7 = require('hl7');
-var util = require('util');
-var EventEmitter = require('events').EventEmitter;
-var decoder = require('./decoder.js');
-
-//The header is a vertical tab character <VT> its hex value is 0x0b.
-//The trailer is a field separator character <FS> (hex 0x1c) immediately followed by a carriage return <CR> (hex 0x0d)
-
-var VT = String.fromCharCode(0x0b); var VTi = 0x0b;
-var FS = String.fromCharCode(0x1c); var FSi = 0x1c;
-var CR = String.fromCharCode(0x0d); var CRi = 0x0d;
-
-var mllpSendMessage = function (receivingHost, receivingPort, hl7Data, callback, logger) {
-    // Render Message if it is an object:
-    logger = logger || console.log;
-    if (typeof hl7Data ==="object" && (typeof hl7Data.render)==="function") {
-        hl7Data = hl7Data.render();
-    } else if (typeof hl7Data ==="object" && !(hl7Data instanceof Buffer)) {
-        hl7Data = hl7.serializeJSON(hl7Data);
-    }
-
-    // Continue with Sending:
-    var sendingClient = new net.connect({
-        host: receivingHost,
-        port: receivingPort
-    }, function () {
-        logger('Sending data to ' + receivingHost + ':' + receivingPort);
-        sendingClient.write(VT, function () {
-            sendingClient.write(hl7Data, function () {
-                sendingClient.write(FS + CR);
-            });
-        });
-    });
-
-    var _terminate = function () {
-        logger('closing connection with ' + receivingHost + ':' + receivingPort);
-        sendingClient.end();
-    };
-
-    sendingClient.on('data', function (rawAckData) {
-        logger(receivingHost + ':' + receivingPort + ' ACKED data');
-
-        var ackData = rawAckData
-            .toString() // Buffer -> String
-            .replace(VT, '')
-            .split('\r')[1] // Ack data
-            .replace(FS, '')
-            .replace(CR, '');
-
-        callback(null, ackData);
-        _terminate();
-    });
-
-    sendingClient.on('error', function (error) {
-        logger(receivingHost + ':' + receivingPort + ' couldn\'t process data');
-
-        callback(error, null);
-        _terminate();
-    });
-};
-
-var mllpCreateResponse = function(data) {
-    var header = [data[0]];
-
-    //switch around sender/receiver names
-    var app = data[0][3];
-    var fac = data[0][4];
-    header[0][3] = data[0][5];
-    header[0][4] = data[0][6];
-    header[0][5] = app;
-    header[0][6] = fac;
-    var dt = new Date();
-    dt = dt.getFullYear() + "" +
-        ("0" + (dt.getMonth()+1)).slice(-2) + "" +
-        ("0" + dt.getDate()).slice(-2) + "" +
-        ("0" + dt.getHours()).slice(-2) + "" +
-        ("0" + dt.getMinutes()).slice(-2) + "" +
-        ("0" + dt.getSeconds()).slice(-2);
-    var msgid = (dt + Math.random()).substr(0, 22);
-    header[0][7] = dt;
-    header[0][9] = "ACK";
-    header[0][10] = msgid;
-
-    return hl7.serializeJSON(header);
-};
-
-/**
- * @constructor MLLPServer
- * @param {string} host a resolvable hostname or IP Address
- * @param {integer} port a valid free port for the server to listen on.
- * @param {object} logger
- * @param {integer} timeout after which the answer is sended.
- * @param {string} defaultCharset for Message decoding
- *
- * @fires MLLPServer#hl7
- *
- * @example
- * var server = new MLLPServer('hl7server.mydomain', 3333, console.log);
- *
- * server.on('hl7', function(message) {
- *  console.log("Message: " + message);
- *  // INSERT Unmarshalling or Processing here
- * });
- *
- * @example
- * <caption>An ACK is sent back to the server</caption>
- *  MSH|^~\&|SOMELAB|SOMELAB|SOMELAB|SOMELAB|20080511103530||ORU^R01|Q335939501T337311002|P|2.3|||
- *  MSA|AA|Q335939501T337311002
- *
- */
-function MLLPServer(host, port, logger, timeout, defaultCharset) {
-
-    var self = this;
-    this.message = Buffer.from('', 'binary');
-    var HOST = host || '127.0.0.1';
-    var PORT = port || 6969;
-    var TIMEOUT = timeout || 600;
-    logger = logger || console.log;
-    var TIMEOUTS = {};
-    var OPENSOCKS = {};
-    var charset = defaultCharset !== undefined ? defaultCharset + "" : "UNICODE UTF-8";
-
-    self.createResponseHeader = mllpCreateResponse;
-
-    self.createResponse = function(data, ack_type, error_msg) {
-        //get message ID
-        var msg_id = data[0][10]; // or 10?
-        return self.createResponseHeader(data)  + "\r" + "MSA|" + ack_type + "|" + msg_id + (error_msg && error_msg.length>0?"|" + error_msg:"");
-    };
-
-    var handleAck = function(event, mode) {
-        if (event && event.id && event.ack) {
-            if (OPENSOCKS[event.id]!==undefined) {
-                var inMsg = OPENSOCKS[event.id];
-                delete OPENSOCKS[event.id];
-
-                // prevent Timeout:
-                if (TIMEOUTS[event.id]!==undefined) {
-                    clearTimeout(TIMEOUTS[event.id]);
-                    delete TIMEOUTS[event.id];
-                }
-
-                if (event.hl7===undefined) {
-                    event.hl7 = hl7.parseString(inMsg.org);
-                }
-
-                try {
-                    var ack;
-                    if ((typeof event.ack) === "object" && (typeof event.ack.render)==="function") {
-                        ack = event.ack.render();
-                    } else if ((typeof event.ack) === "object") {
-                        ack = hl7.serializeJSON(event.ack);
-                    } else if ((typeof  event.ack) === "string" && event.ack.length === 2 && event.hl7) {
-                        ack = self.createResponse(event.hl7, event.ack);
-                    } else if ((typeof  event.ack) === "string") {
-                        ack = event.ack;
-                    } else {
-                        ack = self.createResponse(event.hl7, "AA");
-                    }
-                    inMsg.sock.write(VT + ack + FS + CR);
-                } catch (e) {
-                    logger("Error sending response in mode " + mode, e);
-                }
-            } else {
-                logger("Reponse already send! Cannot process another response in mode " + mode ,event);
-            }
-        } else {
-            logger("Response without Message ID?", event);
-        }
-    };
-
-    var connectionEventState = {
-        host: HOST,
-        port: PORT,
-        connected: false,
-        remote: null
-    };
-    setImmediate(function () {
-        self.emit("hl7-ready", connectionEventState);
-    });
-    var Server = net.createServer(function (sock) {
-
-        logger('CONNECTED: ' + sock.remoteAddress + ':' + sock.remotePort);
-
-        // Tell the outside world out connection state:
-        connectionEventState.connected = true;
-        connectionEventState.remote = sock.remoteAddress + ":" + sock.remotePort;
-        self.emit("hl7-connected", connectionEventState);
-
-        sock.on('end', function() {
-            // This should not happen, but if it does, tell everyone who is interested
-            connectionEventState.connected = false;
-            connectionEventState.remote = null;
-            self.emit("hl7-closed", connectionEventState);
-            logger('server disconnected', HOST, PORT);
-        });
-
-        var handleIncomingMessage = function(messageBuffer) {
-            var messageString = messageBuffer.toString();
-            var data2 = hl7.parseString(messageString);
-            var msg_id = data2[0][10];
-            var encoding = data2[0][18] + "";
-            if (encoding !== undefined && encoding !== null) {
-                // use Default:
-                encoding = charset;
-            }
-
-            if (encoding !== 'UNICODE UTF-8') {
-                // Decoding needed:
-                messageString = decoder(messageBuffer, encoding);
-                data2 = hl7.parseString(messageString);
-                msg_id = data2[0][10];
-            }
-            logger("Message:\r\n" + messageString.replace(/\r/g,"\n") + "\r\n\r\n");
-
-            var event = {
-                "msg" : messageString,
-                "id" : msg_id,
-                "ack" : "AA",
-                "hl7" : data2,
-                "buffer": messageBuffer
-            };
-
-            if (OPENSOCKS[msg_id]===undefined) {
-                // Using a Timeout if no response has been sended within the timeout.
-                TIMEOUTS[msg_id] = setTimeout(function () {
-                    handleAck(event, "timeout");
-                }, TIMEOUT);
-
-                OPENSOCKS[msg_id] = {sock: sock, org: self.message}; // save socket and Message for Response
-
-                /**
-                 * MLLP HL7 Event. Fired when a HL7 Message is received.
-                 * @event MLLPServer#hl7
-                 * @type {string}
-                 * @property {object} Event with the message string (msg), the Msg-ID, the default ACK and the parsed HL7 Object
-                 */
-                self.emit('hl7', event);
-            } else {
-                // The Message ID is currently already in Progress... send a direkt REJECT-Message
-                var ack = self.createResponse(event.hl7, "AR", "Message already in progress");
-                sock.write(VT + ack + FS + CR);
-            }
-        };
-
-        /*
-         * handling incoming Data. Currently only one message per Connection is supported.
-         */
-        sock.on('data', function (data) {
-            self.message = Buffer.concat([self.message, data]);
-
-            while (self.message.indexOf(FS + CR) > -1) {
-                var subBuffer = self.message.slice(0, self.message.indexOf(FS + CR));
-                self.message = self.message.slice(self.message.indexOf(FS + CR)+2);
-                if (subBuffer.indexOf(VTi) > -1) {
-                    subBuffer = subBuffer.slice(subBuffer.indexOf(VTi)+1);
-                }
-                handleIncomingMessage(subBuffer);
-            }
-
-            if (self.message.indexOf(VTi) > 0) {
-                // got a new Message indicator - but there is something before that message- handle as (not proper closed) message:
-                var unwrappedBuffer = self.message.slice(0, self.message.indexOf(VTi));
-                self.message = self.message.slice(self.message.indexOf(VTi)+1);
-                handleIncomingMessage(unwrappedBuffer);
-            }
-
-        });
-
-        // emit incoming errors on the Sock to the outside world
-        sock.on("error", function (err) {
-            self.emit("hl7-error", err);
-        });
-
-        sock.on('close', function () {
-            logger('CLOSED: ' + sock.remoteAddress + ' ' + sock.remotePort);
-            // Tell the outside world out connection state:
-            connectionEventState.connected = false;
-            connectionEventState.remote = null;
-            self.emit("hl7-disconnected", connectionEventState);
-        });
-
-    });
-
-    self.response = function(event) {
-        handleAck(event, "direct");
-    };
-
-    self.sendResponse = function(msgId, ack) {
-        self.response({id: msgId, ack:ack});
-    };
-
-    self.send = function (receivingHost, receivingPort, hl7Data, callback) {
-        mllpSendMessage(receivingHost, receivingPort, hl7Data, callback);
-    };
-
-    self.close = function(done) {
-      Server.close(done);
-    };
-    if (HOST !== '0.0.0.0') {
-        Server.listen(PORT, HOST, function (err) {
-            if (err) {
-                logger("ERROR Listen to " + HOST + ":" + PORT, err);
-            } else {
-                logger("Listen now to " + HOST + ":" + PORT);
-            }
-        });
-    } else {
-        Server.listen(PORT,  function (err) {
-            if (err) {
-                logger("ERROR Listen to [any]:" + PORT, err);
-            } else {
-                logger("Listen now to [any]:" + PORT);
-            }
-        });
-    }
-
-}
-
-util.inherits(MLLPServer, EventEmitter);
-
-// Set static Methods - no need to listen if you only want to send a Message:
-MLLPServer.send = mllpSendMessage;
-MLLPServer.createResponseHeader = mllpCreateResponse;
-
-exports.MLLPServer = MLLPServer;
diff --git a/package-lock.json b/package-lock.json
index 86677d1..592630d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,8 +1,3534 @@
 {
   "name": "mllp-node",
   "version": "2.0.0",
-  "lockfileVersion": 1,
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "name": "mllp-node",
+      "version": "2.0.0",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "hl7": "1.x.x",
+        "iconv-lite": "^0.6.0"
+      },
+      "devDependencies": {
+        "@types/node": "^18.6.1",
+        "chai": "4.1.x",
+        "chai-datetime": "1.5.x",
+        "coveralls": "3.0.x",
+        "grunt": "1.0.x",
+        "grunt-contrib-jshint": "1.1.x",
+        "grunt-contrib-watch": "1.1.x",
+        "grunt-coveralls": "*",
+        "grunt-istanbul-coverage": "*",
+        "grunt-jsbeautifier": "^0.2.x",
+        "grunt-mocha-test": "0.13.x",
+        "mocha": "5.2.x",
+        "mocha-lcov-reporter": "1.3.x",
+        "typescript": "^4.7.4"
+      },
+      "engines": {
+        "node": ">=8.x.x"
+      }
+    },
+    "node_modules/@types/commander": {
+      "version": "2.12.2",
+      "resolved": "https://registry.npmjs.org/@types/commander/-/commander-2.12.2.tgz",
+      "integrity": "sha512-0QEFiR8ljcHp9bAbWxecjVRuAMr16ivPiGOw6KFQBVrVd0RQIcM3xKdRisH2EDWgVWujiYtHwhSkSUoAAGzH7Q==",
+      "deprecated": "This is a stub types definition for commander (https://github.com/tj/commander.js). commander provides its own type definitions, so you don't need @types/commander installed!",
+      "dev": true,
+      "dependencies": {
+        "commander": "*"
+      }
+    },
+    "node_modules/@types/node": {
+      "version": "18.6.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.6.1.tgz",
+      "integrity": "sha512-z+2vB6yDt1fNwKOeGbckpmirO+VBDuQqecXkgeIqDlaOtmKn6hPR/viQ8cxCfqLU4fTlvM3+YjM367TukWdxpg==",
+      "dev": true
+    },
+    "node_modules/@types/semver": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-5.5.0.tgz",
+      "integrity": "sha512-41qEJgBH/TWgo5NFSvBCJ1qkoi3Q6ONSF2avrHq1LVEZfYpdHmj0y9SuTK+u9ZhG1sYQKBL1AWXKyLWP4RaUoQ==",
+      "dev": true
+    },
+    "node_modules/abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+      "dev": true
+    },
+    "node_modules/ajv": {
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "dev": true,
+      "dependencies": {
+        "co": "^4.6.0",
+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.3.0"
+      }
+    },
+    "node_modules/amdefine": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+      "dev": true,
+      "optional": true,
+      "engines": {
+        "node": ">=0.4.2"
+      }
+    },
+    "node_modules/ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "dependencies": {
+        "color-convert": "^1.9.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/argparse": {
+      "version": "0.1.16",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.16.tgz",
+      "integrity": "sha1-z9AeD7uj1srtBJ+9dY1A9lGW9Xw=",
+      "dev": true,
+      "dependencies": {
+        "underscore": "~1.7.0",
+        "underscore.string": "~2.4.0"
+      }
+    },
+    "node_modules/array-find-index": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
+      "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/asn1": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "dev": true,
+      "dependencies": {
+        "safer-buffer": "~2.1.0"
+      }
+    },
+    "node_modules/assert-plus": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/assertion-error": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
+      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/async": {
+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
+      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
+      "dev": true
+    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
+      "dev": true
+    },
+    "node_modules/aws-sign2": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
+      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/aws4": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
+      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==",
+      "dev": true
+    },
+    "node_modules/balanced-match": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+      "dev": true
+    },
+    "node_modules/bcrypt-pbkdf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+      "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
+      "dev": true,
+      "optional": true,
+      "dependencies": {
+        "tweetnacl": "^0.14.3"
+      }
+    },
+    "node_modules/body": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/body/-/body-5.1.0.tgz",
+      "integrity": "sha1-5LoM5BCkaTYyM2dgnstOZVMSUGk=",
+      "dev": true,
+      "dependencies": {
+        "continuable-cache": "^0.3.1",
+        "error": "^7.0.0",
+        "raw-body": "~1.1.0",
+        "safe-json-parse": "~1.0.1"
+      }
+    },
+    "node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "node_modules/browser-stdout": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
+      "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
+      "dev": true
+    },
+    "node_modules/buffer-from": {
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+      "dev": true,
+      "dependencies": {
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+        "debug": "^3.1.0",
+        "faye-websocket": "~0.10.0",
+        "livereload-js": "^2.3.0",
+        "object-assign": "^4.1.0",
+        "qs": "^6.4.0"
+      }
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+      "dev": true,
+      "dependencies": {
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+      "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
+      "dev": true,
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+      "dev": true,
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+        "tsserver": "bin/tsserver"
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+        "commander": "~2.17.1",
+        "source-map": "~0.6.1"
+      },
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+        "uglifyjs": "bin/uglifyjs"
+      },
+      "engines": {
+        "node": ">=0.8.0"
+      }
+    },
+    "node_modules/uglify-js/node_modules/source-map": {
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+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "dev": true,
+      "optional": true,
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+        "node": ">=0.10.0"
+      }
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+    "node_modules/underscore": {
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz",
+      "integrity": "sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=",
+      "dev": true
+    },
+    "node_modules/underscore.string": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.4.0.tgz",
+      "integrity": "sha1-jN2PusTi0uoefi6Al8QvRCKA+Fs=",
+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/unicode-5.2.0": {
+      "version": "0.7.5",
+      "resolved": "https://registry.npmjs.org/unicode-5.2.0/-/unicode-5.2.0-0.7.5.tgz",
+      "integrity": "sha512-KVGLW1Bri30x00yv4HNM8kBxoqFXr0Sbo55735nvrlsx4PYBZol3UtoWgO492fSwmsetzPEZzy73rbU8OGXJcA==",
+      "deprecated": "Use @unicode/unicode-5.2.0 instead.",
+      "dev": true
+    },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true
+    },
+    "node_modules/uuid": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "deprecated": "Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.",
+      "dev": true,
+      "bin": {
+        "uuid": "bin/uuid"
+      }
+    },
+    "node_modules/validate-npm-package-license": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+      "dev": true,
+      "dependencies": {
+        "spdx-correct": "^3.0.0",
+        "spdx-expression-parse": "^3.0.0"
+      }
+    },
+    "node_modules/verror": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
+      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
+      "dev": true,
+      "engines": [
+        "node >=0.6.0"
+      ],
+      "dependencies": {
+        "assert-plus": "^1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "^1.2.0"
+      }
+    },
+    "node_modules/websocket-driver": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.0.tgz",
+      "integrity": "sha1-DK+dLXVdk67gSdS90NP+LMoqJOs=",
+      "dev": true,
+      "dependencies": {
+        "http-parser-js": ">=0.4.0",
+        "websocket-extensions": ">=0.1.1"
+      },
+      "engines": {
+        "node": ">=0.8.0"
+      }
+    },
+    "node_modules/websocket-extensions": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
+      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
+      "dev": true,
+      "engines": {
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+      }
+    },
+    "node_modules/which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "which": "bin/which"
+      }
+    },
+    "node_modules/winston": {
+      "version": "2.4.4",
+      "resolved": "https://registry.npmjs.org/winston/-/winston-2.4.4.tgz",
+      "integrity": "sha512-NBo2Pepn4hK4V01UfcWcDlmiVTs7VTB1h7bgnB0rgP146bYhMxX0ypCz3lBOfNxCO4Zuek7yeT+y/zM1OfMw4Q==",
+      "dev": true,
+      "optional": true,
+      "dependencies": {
+        "async": "~1.0.0",
+        "colors": "1.0.x",
+        "cycle": "1.0.x",
+        "eyes": "0.1.x",
+        "isstream": "0.1.x",
+        "stack-trace": "0.0.x"
+      },
+      "engines": {
+        "node": ">= 0.10.0"
+      }
+    },
+    "node_modules/winston/node_modules/async": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.0.0.tgz",
+      "integrity": "sha1-+PwEyjoTeErenhZBr5hXjPvWR6k=",
+      "dev": true,
+      "optional": true
+    },
+    "node_modules/winston/node_modules/colors": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
+      "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
+      "dev": true,
+      "optional": true,
+      "engines": {
+        "node": ">=0.1.90"
+      }
+    },
+    "node_modules/wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "node_modules/xtend": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.4"
+      }
+    },
+    "node_modules/yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
+    "node_modules/yauzl": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
+      "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
+      "dev": true,
+      "optional": true,
+      "dependencies": {
+        "fd-slicer": "~1.0.1"
+      }
+    }
+  },
   "dependencies": {
     "@types/commander": {
       "version": "2.12.2",
@@ -13,6 +3539,12 @@
         "commander": "*"
       }
     },
+    "@types/node": {
+      "version": "18.6.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.6.1.tgz",
+      "integrity": "sha512-z+2vB6yDt1fNwKOeGbckpmirO+VBDuQqecXkgeIqDlaOtmKn6hPR/viQ8cxCfqLU4fTlvM3+YjM367TukWdxpg==",
+      "dev": true
+    },
     "@types/semver": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/@types/semver/-/semver-5.5.0.tgz",
@@ -1026,15 +4558,6 @@
             "safer-buffer": ">= 2.1.2 < 3"
           }
         },
-        "iconv-lite": {
-          "version": "0.4.24",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
-          "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
-          "dev": true,
-          "requires": {
-            "safer-buffer": ">= 2.1.2 < 3"
-          }
-        },
         "js-yaml": {
           "version": "3.5.5",
           "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.5.5.tgz",
@@ -2535,18 +6058,18 @@
       "dev": true,
       "optional": true
     },
-    "string-template": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/string-template/-/string-template-0.2.1.tgz",
-      "integrity": "sha1-QpMuWYo1LQH8IuwzZ9nYTuxsmt0=",
-      "dev": true
-    },
     "string_decoder": {
       "version": "0.10.31",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
       "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
       "dev": true
     },
+    "string-template": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/string-template/-/string-template-0.2.1.tgz",
+      "integrity": "sha1-QpMuWYo1LQH8IuwzZ9nYTuxsmt0=",
+      "dev": true
+    },
     "strip-ansi": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
@@ -2688,6 +6211,12 @@
       "dev": true,
       "optional": true
     },
+    "typescript": {
+      "version": "4.7.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.4.tgz",
+      "integrity": "sha512-C0WQT0gezHuw6AdY1M2jxUO83Rjf0HP7Sk1DtXj6j1EwkQNZrHAg2XPWlq62oqEhYvONq5pkC2Y9oPljWToLmQ==",
+      "dev": true
+    },
     "uglify-js": {
       "version": "3.4.9",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
diff --git a/package.json b/package.json
index 7f00577..8c32649 100644
--- a/package.json
+++ b/package.json
@@ -2,12 +2,18 @@
   "name": "mllp-node",
   "version": "2.0.0",
   "description": "MLLP (HL7) implementation in Node.js",
-  "main": "index.js",
+  "main": "src/index.js",
+  "types": "src/index.ts",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "build": "tsc",
+    "test": "tsc && grunt"
   },
-  "author": "Dmitry Kachaev <dmitry.kachaev@gmail.com> (http://github.com/kachok)",
   "contributors": [
+    {
+      "name": "Dmitry Kachaev",
+      "email": "dmitry.kachaev@gmail.com",
+      "url": "http://github.com/kachok"
+    },
     {
       "name": "Alexander Drexler",
       "email": "dx2308@googlemail.com",
@@ -16,28 +22,30 @@
   ],
   "repository": {
     "type": "git",
-    "url": "git@github.com:amida-tech/mllp.git"
+    "url": "git@github.com:tka-lex/mllp.git"
   },
   "bugs": {
     "url": "https://github.com/amida-tech/mllp/issues"
   },
   "license": "Apache-2.0",
   "devDependencies": {
+    "@types/node": "^18.6.1",
+    "chai": "4.1.x",
+    "chai-datetime": "1.5.x",
+    "coveralls": "3.0.x",
     "grunt": "1.0.x",
     "grunt-contrib-jshint": "1.1.x",
     "grunt-contrib-watch": "1.1.x",
-    "grunt-mocha-test": "0.13.x",
-    "grunt-jsbeautifier": "^0.2.x",
-    "mocha": "5.2.x",
-    "chai": "4.1.x",
-    "chai-datetime": "1.5.x",
     "grunt-coveralls": "*",
     "grunt-istanbul-coverage": "*",
-    "coveralls": "3.0.x",
-    "mocha-lcov-reporter": "1.3.x"
+    "grunt-jsbeautifier": "^0.2.x",
+    "grunt-mocha-test": "0.13.x",
+    "mocha": "5.2.x",
+    "mocha-lcov-reporter": "1.3.x",
+    "typescript": "^4.7.4"
   },
   "engines": {
-    "node": "8.x.x"
+    "node": ">=8.x.x"
   },
   "dependencies": {
     "hl7": "1.x.x",
diff --git a/src/decoder.js b/src/decoder.js
new file mode 100644
index 0000000..40e7c65
--- /dev/null
+++ b/src/decoder.js
@@ -0,0 +1,22 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const iconv = require('iconv-lite');
+function default_1(msgBuffer, hl7Encoding) {
+    try {
+        if (hl7Encoding.startsWith("8859/")) {
+            return iconv.decode(msgBuffer, "ISO-" + hl7Encoding.replace("/", "-"));
+        }
+        else if (hl7Encoding.toUpperCase() === 'UNICODE UTF-16') {
+            return iconv.decode(msgBuffer, 'UTF-16BE');
+        }
+        else if (hl7Encoding.toUpperCase() === 'ASCII') {
+            return iconv.decode(msgBuffer, 'ascii');
+        }
+    }
+    catch (e) {
+        console.error("Error during decode: ", e);
+    }
+    return msgBuffer.toString(); // Fallback if encoding is not supported.
+}
+exports.default = default_1;
+;
diff --git a/decoder.js b/src/decoder.ts
similarity index 83%
rename from decoder.js
rename to src/decoder.ts
index 1e161b0..0728d94 100644
--- a/decoder.js
+++ b/src/decoder.ts
@@ -1,6 +1,6 @@
-var iconv = require('iconv-lite');
+const iconv = require('iconv-lite')
 
-module.exports = function (msgBuffer, hl7Encoding) {
+export default function (msgBuffer: Buffer, hl7Encoding: string) {
     try {
         if (hl7Encoding.startsWith("8859/")) {
             return iconv.decode(msgBuffer, "ISO-" + hl7Encoding.replace("/","-"));
@@ -13,4 +13,4 @@ module.exports = function (msgBuffer, hl7Encoding) {
         console.error("Error during decode: " , e);
     }
     return msgBuffer.toString(); // Fallback if encoding is not supported.
-};
\ No newline at end of file
+};
diff --git a/example.js b/src/example.js
similarity index 100%
rename from example.js
rename to src/example.js
diff --git a/src/index.js b/src/index.js
new file mode 100644
index 0000000..58a5087
--- /dev/null
+++ b/src/index.js
@@ -0,0 +1,333 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MLLPServer = exports.mllpSendMessage = void 0;
+const net_1 = __importDefault(require("net"));
+const events_1 = __importDefault(require("events"));
+const decoder_1 = __importDefault(require("./decoder"));
+// @ts-ignore
+const hl7 = __importStar(require("hl7"));
+//The header is a vertical tab character <VT> its hex value is 0x0b.
+//The trailer is a field separator character <FS> (hex 0x1c) immediately followed by a carriage return <CR> (hex 0x0d)
+var VT = String.fromCharCode(0x0b);
+var VTi = 0x0b;
+var FS = String.fromCharCode(0x1c);
+var FSi = 0x1c;
+var CR = String.fromCharCode(0x0d);
+var CRi = 0x0d;
+function isARenderable(obj) {
+    return obj.hasOwnProperty("render") && typeof obj.render === 'function';
+}
+function getPayload(hl7Data) {
+    if (typeof hl7Data === "object" && isARenderable(hl7Data)) {
+        return hl7Data.render();
+    }
+    else if (typeof hl7Data === "object" && !(hl7Data instanceof Buffer)) {
+        return hl7Data = hl7.serializeJSON(hl7Data);
+    }
+    else {
+        return hl7Data;
+    }
+}
+function mllpSendMessage(receivingHost, receivingPort, hl7Data, callback, logger) {
+    // Render Message if it is an object:
+    const log = logger || console.log;
+    const payload = getPayload(hl7Data);
+    // Continue with Sending:
+    var sendingClient = net_1.default.connect({
+        host: receivingHost,
+        port: receivingPort
+    }, function () {
+        log('Sending data to ' + receivingHost + ':' + receivingPort);
+        sendingClient.write(VT, function () {
+            sendingClient.write(payload, function () {
+                sendingClient.write(FS + CR);
+            });
+        });
+    });
+    var _terminate = function () {
+        log('closing connection with ' + receivingHost + ':' + receivingPort);
+        sendingClient.end();
+    };
+    sendingClient.on('data', function (rawAckData) {
+        log(receivingHost + ':' + receivingPort + ' ACKED data');
+        var ackData = rawAckData
+            .toString() // Buffer -> String
+            .replace(VT, '')
+            .split('\r')[1] // Ack data
+            .replace(FS, '')
+            .replace(CR, '');
+        callback(null, ackData);
+        _terminate();
+    });
+    sendingClient.on('error', function (error) {
+        log(receivingHost + ':' + receivingPort + ' couldn\'t process data');
+        callback(error, null);
+        _terminate();
+    });
+}
+exports.mllpSendMessage = mllpSendMessage;
+/**
+ * @constructor MLLPServer
+ * @param {string} host a resolvable hostname or IP Address
+ * @param {integer} port a valid free port for the server to listen on.
+ * @param defaultLogger
+ * @param {integer} timeout after which the answer is sended.
+ * @param {string} defaultCharset for Message decoding
+ *
+ * @fires MLLPServer#hl7
+ *
+ * @example
+ * var server = new MLLPServer('hl7server.mydomain', 3333, console.log);
+ *
+ * server.on('hl7', function(message) {
+ *  console.log("Message: " + message);
+ *  // INSERT Unmarshalling or Processing here
+ * });
+ *
+ * @example
+ * <caption>An ACK is sent back to the server</caption>
+ *  MSH|^~\&|SOMELAB|SOMELAB|SOMELAB|SOMELAB|20080511103530||ORU^R01|Q335939501T337311002|P|2.3|||
+ *  MSA|AA|Q335939501T337311002
+ *
+ */
+class MLLPServer extends events_1.default {
+    constructor(host, port, defaultLogger, timeout, defaultCharset) {
+        super();
+        this.HOST = host || '127.0.0.1';
+        this.PORT = port || 6969;
+        this.message = Buffer.from('', 'binary');
+        this.TIMEOUT = timeout || 600;
+        this.logger = defaultLogger || console.log;
+        this.TIMEOUTS = {};
+        this.OPENSOCKS = {};
+        this.charset = defaultCharset !== undefined ? defaultCharset + "" : "UNICODE UTF-8";
+        try {
+            const self = this;
+            const connectionEventState = {
+                host: this.HOST,
+                port: this.PORT,
+                connected: false,
+                remote: null
+            };
+            setImmediate(() => {
+                this.emit("hl7-ready", connectionEventState);
+            });
+            this.Server = net_1.default.createServer((sock) => {
+                this.logger('CONNECTED: ' + sock.remoteAddress + ':' + sock.remotePort);
+                // Tell the outside world out connection state:
+                connectionEventState.connected = true;
+                connectionEventState.remote = sock.remoteAddress + ":" + sock.remotePort;
+                this.emit("hl7-connected", connectionEventState);
+                sock.on('end', () => {
+                    // This should not happen, but if it does, tell everyone who is interested
+                    connectionEventState.connected = false;
+                    connectionEventState.remote = null;
+                    this.emit("hl7-closed", connectionEventState);
+                    this.logger('server disconnected', this.HOST, this.PORT);
+                });
+                var handleIncomingMessage = (messageBuffer) => {
+                    var messageString = messageBuffer.toString();
+                    var data2 = hl7.parseString(messageString);
+                    var msg_id = data2[0][10];
+                    var encoding = data2[0][18] + "";
+                    if (encoding !== undefined && encoding !== null) {
+                        // use Default:
+                        encoding = this.charset;
+                    }
+                    if (encoding !== 'UNICODE UTF-8') {
+                        // Decoding needed:
+                        messageString = (0, decoder_1.default)(messageBuffer, encoding);
+                        data2 = hl7.parseString(messageString);
+                        msg_id = data2[0][10];
+                    }
+                    this.logger("Message:\r\n" + messageString.replace(/\r/g, "\n") + "\r\n\r\n");
+                    var event = {
+                        "msg": messageString,
+                        "id": msg_id,
+                        "ack": "AA",
+                        "hl7": data2,
+                        "buffer": messageBuffer
+                    };
+                    if (this.OPENSOCKS[msg_id] === undefined) {
+                        // Using a Timeout if no response has been sended within the timeout.
+                        this.TIMEOUTS[msg_id] = setTimeout(() => {
+                            this.handleAck(event, "timeout");
+                        }, this.TIMEOUT);
+                        this.OPENSOCKS[msg_id] = { sock: sock, org: this.message }; // save socket and Message for Response
+                        /**
+                         * MLLP HL7 Event. Fired when a HL7 Message is received.
+                         * @event MLLPServer#hl7
+                         * @type {string}
+                         * @property {object} Event with the message string (msg), the Msg-ID, the default ACK and the parsed HL7 Object
+                         */
+                        this.emit('hl7', event);
+                    }
+                    else {
+                        // The Message ID is currently already in Progress... send a direkt REJECT-Message
+                        var ack = this.createResponse(event.hl7, "AR", "Message already in progress");
+                        sock.write(VT + ack + FS + CR);
+                    }
+                };
+                /*
+                 * handling incoming Data. Currently only one message per Connection is supported.
+                 */
+                sock.on('data', (data) => {
+                    this.message = Buffer.concat([this.message, data]);
+                    while (this.message.indexOf(FS + CR) > -1) {
+                        var subBuffer = this.message.slice(0, this.message.indexOf(FS + CR));
+                        this.message = this.message.slice(this.message.indexOf(FS + CR) + 2);
+                        if (subBuffer.indexOf(VTi) > -1) {
+                            subBuffer = subBuffer.slice(subBuffer.indexOf(VTi) + 1);
+                        }
+                        handleIncomingMessage(subBuffer);
+                    }
+                    if (this.message.indexOf(VTi) > 0) {
+                        // got a new Message indicator - but there is something before that message- handle as (not proper closed) message:
+                        var unwrappedBuffer = this.message.slice(0, this.message.indexOf(VTi));
+                        this.message = this.message.slice(this.message.indexOf(VTi) + 1);
+                        handleIncomingMessage(unwrappedBuffer);
+                    }
+                });
+                // emit incoming errors on the Sock to the outside world
+                sock.on("error", (err) => {
+                    this.emit("hl7-error", err);
+                });
+                sock.on('close', () => {
+                    this.logger('CLOSED: ' + sock.remoteAddress + ' ' + sock.remotePort);
+                    // Tell the outside world out connection state:
+                    connectionEventState.connected = false;
+                    connectionEventState.remote = null;
+                    this.emit("hl7-disconnected", connectionEventState);
+                });
+            });
+            if (this.HOST !== '0.0.0.0') {
+                this.Server.listen(this.PORT, this.HOST, () => {
+                    this.logger("Listen now to " + this.HOST + ":" + this.PORT);
+                });
+            }
+            else {
+                this.Server.listen(this.PORT, () => {
+                    this.logger("Listen now to [any]:" + this.PORT);
+                });
+            }
+        }
+        catch (e) {
+            this.logger(`Error Listen to ${this.HOST}:${this.PORT}`, e);
+            throw new Error(`Error Listen to ${this.HOST}:${this.PORT}`);
+        }
+    }
+    static createResponseHeader(data) {
+        const header = [data[0]];
+        //switch around sender/receiver names
+        const app = data[0][3];
+        const fac = data[0][4];
+        header[0][3] = data[0][5];
+        header[0][4] = data[0][6];
+        header[0][5] = app;
+        header[0][6] = fac;
+        const now = new Date();
+        const dt = now.getFullYear() + "" +
+            ("0" + (now.getMonth() + 1)).slice(-2) + "" +
+            ("0" + now.getDate()).slice(-2) + "" +
+            ("0" + now.getHours()).slice(-2) + "" +
+            ("0" + now.getMinutes()).slice(-2) + "" +
+            ("0" + now.getSeconds()).slice(-2);
+        const msgid = (dt + Math.random()).substring(0, 22);
+        header[0][7] = dt;
+        header[0][9] = "ACK";
+        header[0][10] = msgid;
+        return hl7.serializeJSON(header);
+    }
+    createResponse(data, ack_type, error_msg) {
+        //get message ID
+        const msg_id = data[0][10]; // or 10?
+        return MLLPServer.createResponseHeader(data) + "\r" + "MSA|" + ack_type + "|" + msg_id + (error_msg && error_msg.length > 0 ? "|" + error_msg : "");
+    }
+    ;
+    handleAck(event, mode) {
+        if (event && event.id && event.ack) {
+            if (this.OPENSOCKS[event.id] !== undefined) {
+                var inMsg = this.OPENSOCKS[event.id];
+                delete this.OPENSOCKS[event.id];
+                // prevent Timeout:
+                if (this.TIMEOUTS[event.id] !== undefined) {
+                    clearTimeout(this.TIMEOUTS[event.id]);
+                    delete this.TIMEOUTS[event.id];
+                }
+                if (event.hl7 === undefined) {
+                    event.hl7 = hl7.parseString(inMsg.org);
+                }
+                try {
+                    var ack;
+                    if ((typeof event.ack) === "object" && (typeof event.ack.render) === "function") {
+                        ack = event.ack.render();
+                    }
+                    else if ((typeof event.ack) === "object") {
+                        ack = hl7.serializeJSON(event.ack);
+                    }
+                    else if ((typeof event.ack) === "string" && event.ack.length === 2 && event.hl7) {
+                        ack = this.createResponse(event.hl7, event.ack);
+                    }
+                    else if ((typeof event.ack) === "string") {
+                        ack = event.ack;
+                    }
+                    else {
+                        ack = this.createResponse(event.hl7, "AA");
+                    }
+                    inMsg.sock.write(VT + ack + FS + CR);
+                }
+                catch (e) {
+                    this.logger("Error sending response in mode " + mode, e);
+                }
+            }
+            else {
+                this.logger("Reponse already send! Cannot process another response in mode " + mode, event);
+            }
+        }
+        else {
+            this.logger("Response without Message ID?", event);
+        }
+    }
+    ;
+    response(event) {
+        this.handleAck(event, "direct");
+    }
+    ;
+    sendResponse(msgId, ack) {
+        this.response({ id: msgId, ack: ack });
+    }
+    ;
+    send(receivingHost, receivingPort, hl7Data, callback) {
+        mllpSendMessage(receivingHost, receivingPort, hl7Data, callback, this.logger);
+    }
+    close(done) {
+        this.Server.close(done);
+    }
+}
+exports.MLLPServer = MLLPServer;
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..7f9b570
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,359 @@
+import net from 'net'
+import EventEmitter from "events"
+import decoder from './decoder'
+
+// @ts-ignore
+import * as hl7 from 'hl7'
+
+//The header is a vertical tab character <VT> its hex value is 0x0b.
+//The trailer is a field separator character <FS> (hex 0x1c) immediately followed by a carriage return <CR> (hex 0x0d)
+
+var VT = String.fromCharCode(0x0b); var VTi = 0x0b;
+var FS = String.fromCharCode(0x1c); var FSi = 0x1c;
+var CR = String.fromCharCode(0x0d); var CRi = 0x0d;
+
+export interface Renderable {
+    render(): string|Buffer
+}
+
+function isARenderable (obj: any) : obj is Renderable {
+    return obj.hasOwnProperty("render") && typeof obj.render === 'function'
+}
+
+function getPayload(hl7Data:Buffer|Renderable|string) : string|Buffer {
+    if (typeof hl7Data === "object" && isARenderable(hl7Data)) {
+        return  hl7Data.render();
+    } else if (typeof hl7Data === "object" && !(hl7Data instanceof Buffer)) {
+        return hl7Data = hl7.serializeJSON(hl7Data);
+    } else {
+        return hl7Data
+    }
+}
+
+export function mllpSendMessage (
+    receivingHost: string, receivingPort: number,
+    hl7Data:Buffer|Renderable|string,
+    callback: (err: Error|null, response: string|null) => void,
+    logger?: (msg:string) => void) {
+    // Render Message if it is an object:
+    const log = logger || console.log;
+    const payload: string|Buffer = getPayload(hl7Data);
+
+
+    // Continue with Sending:
+    var sendingClient = net.connect({
+        host: receivingHost,
+        port: receivingPort
+    }, function () {
+        log('Sending data to ' + receivingHost + ':' + receivingPort);
+        sendingClient.write(VT, function () {
+            sendingClient.write(payload, function () {
+                sendingClient.write(FS + CR);
+            });
+        });
+    });
+
+    var _terminate = function () {
+        log('closing connection with ' + receivingHost + ':' + receivingPort);
+        sendingClient.end();
+    };
+
+    sendingClient.on('data', function (rawAckData) {
+        log(receivingHost + ':' + receivingPort + ' ACKED data');
+
+        var ackData = rawAckData
+            .toString() // Buffer -> String
+            .replace(VT, '')
+            .split('\r')[1] // Ack data
+            .replace(FS, '')
+            .replace(CR, '');
+
+        callback(null, ackData);
+        _terminate();
+    });
+
+    sendingClient.on('error', function (error) {
+        log(receivingHost + ':' + receivingPort + ' couldn\'t process data');
+
+        callback(error, null);
+        _terminate();
+    });
+}
+
+export interface MLLPConnectionState {
+    host: string
+    port: number
+    connected: boolean,
+    remote: null|string
+}
+
+/**
+ * @constructor MLLPServer
+ * @param {string} host a resolvable hostname or IP Address
+ * @param {integer} port a valid free port for the server to listen on.
+ * @param defaultLogger
+ * @param {integer} timeout after which the answer is sended.
+ * @param {string} defaultCharset for Message decoding
+ *
+ * @fires MLLPServer#hl7
+ *
+ * @example
+ * var server = new MLLPServer('hl7server.mydomain', 3333, console.log);
+ *
+ * server.on('hl7', function(message) {
+ *  console.log("Message: " + message);
+ *  // INSERT Unmarshalling or Processing here
+ * });
+ *
+ * @example
+ * <caption>An ACK is sent back to the server</caption>
+ *  MSH|^~\&|SOMELAB|SOMELAB|SOMELAB|SOMELAB|20080511103530||ORU^R01|Q335939501T337311002|P|2.3|||
+ *  MSA|AA|Q335939501T337311002
+ *
+ */
+export class MLLPServer extends EventEmitter {
+    protected readonly HOST: string
+    protected readonly PORT: number
+    protected readonly TIMEOUT: number
+    protected message: Buffer
+    protected logger: (msg: string, ...data:any[]) => void
+    protected charset: string
+    private TIMEOUTS: any
+    private OPENSOCKS: any;
+    protected Server: net.Server
+
+    constructor(host:string, port:number, defaultLogger?: (msg: string) => void, timeout?:number, defaultCharset?: string) {
+        super()
+        this.HOST = host || '127.0.0.1'
+        this.PORT = port || 6969
+        this.message = Buffer.from('', 'binary');
+        this.TIMEOUT = timeout || 600;
+        this.logger = defaultLogger || console.log;
+        this.TIMEOUTS = {};
+        this.OPENSOCKS = {};
+        this.charset = defaultCharset !== undefined ? defaultCharset + "" : "UNICODE UTF-8";
+
+        try {
+            const self = this
+            const connectionEventState : MLLPConnectionState = {
+                host: this.HOST,
+                port: this.PORT,
+                connected: false,
+                remote: null
+            };
+            setImmediate(() => {
+                this.emit("hl7-ready", connectionEventState);
+            });
+            this.Server = net.createServer((sock) => {
+
+                this.logger('CONNECTED: ' + sock.remoteAddress + ':' + sock.remotePort);
+
+                // Tell the outside world out connection state:
+                connectionEventState.connected = true;
+                connectionEventState.remote = sock.remoteAddress + ":" + sock.remotePort;
+                this.emit("hl7-connected", connectionEventState);
+
+                sock.on('end', () => {
+                    // This should not happen, but if it does, tell everyone who is interested
+                    connectionEventState.connected = false;
+                    connectionEventState.remote = null;
+                    this.emit("hl7-closed", connectionEventState);
+                    this.logger('server disconnected', this.HOST, this.PORT);
+                });
+
+                var handleIncomingMessage = (messageBuffer:Buffer) => {
+                    var messageString = messageBuffer.toString();
+                    var data2 = hl7.parseString(messageString);
+                    var msg_id = data2[0][10];
+                    var encoding = data2[0][18] + "";
+                    if (encoding !== undefined && encoding !== null) {
+                        // use Default:
+                        encoding = this.charset;
+                    }
+
+                    if (encoding !== 'UNICODE UTF-8') {
+                        // Decoding needed:
+                        messageString = decoder(messageBuffer, encoding);
+                        data2 = hl7.parseString(messageString);
+                        msg_id = data2[0][10];
+                    }
+                    this.logger("Message:\r\n" + messageString.replace(/\r/g, "\n") + "\r\n\r\n");
+
+                    var event = {
+                        "msg": messageString,
+                        "id": msg_id,
+                        "ack": "AA",
+                        "hl7": data2,
+                        "buffer": messageBuffer
+                    };
+
+                    if (this.OPENSOCKS[msg_id] === undefined) {
+                        // Using a Timeout if no response has been sended within the timeout.
+                        this.TIMEOUTS[msg_id] = setTimeout(() => {
+                            this.handleAck(event, "timeout");
+                        }, this.TIMEOUT);
+
+                        this.OPENSOCKS[msg_id] = {sock: sock, org: this.message}; // save socket and Message for Response
+
+                        /**
+                         * MLLP HL7 Event. Fired when a HL7 Message is received.
+                         * @event MLLPServer#hl7
+                         * @type {string}
+                         * @property {object} Event with the message string (msg), the Msg-ID, the default ACK and the parsed HL7 Object
+                         */
+                        this.emit('hl7', event);
+                    } else {
+                        // The Message ID is currently already in Progress... send a direkt REJECT-Message
+                        var ack = this.createResponse(event.hl7, "AR", "Message already in progress");
+                        sock.write(VT + ack + FS + CR);
+                    }
+                };
+
+                /*
+                 * handling incoming Data. Currently only one message per Connection is supported.
+                 */
+                sock.on('data', (data) => {
+                    this.message = Buffer.concat([this.message, data]);
+
+                    while (this.message.indexOf(FS + CR) > -1) {
+                        var subBuffer = this.message.slice(0, this.message.indexOf(FS + CR));
+                        this.message = this.message.slice(this.message.indexOf(FS + CR) + 2);
+                        if (subBuffer.indexOf(VTi) > -1) {
+                            subBuffer = subBuffer.slice(subBuffer.indexOf(VTi) + 1);
+                        }
+                        handleIncomingMessage(subBuffer);
+                    }
+
+                    if (this.message.indexOf(VTi) > 0) {
+                        // got a new Message indicator - but there is something before that message- handle as (not proper closed) message:
+                        var unwrappedBuffer = this.message.slice(0, this.message.indexOf(VTi));
+                        this.message = this.message.slice(this.message.indexOf(VTi) + 1);
+                        handleIncomingMessage(unwrappedBuffer);
+                    }
+
+                });
+
+                // emit incoming errors on the Sock to the outside world
+                sock.on("error", (err) => {
+                    this.emit("hl7-error", err);
+                });
+
+                sock.on('close', () => {
+                    this.logger('CLOSED: ' + sock.remoteAddress + ' ' + sock.remotePort);
+                    // Tell the outside world out connection state:
+                    connectionEventState.connected = false;
+                    connectionEventState.remote = null;
+                    this.emit("hl7-disconnected", connectionEventState);
+                });
+
+            });
+
+            if (this.HOST !== '0.0.0.0') {
+                this.Server.listen(this.PORT, this.HOST, () => {
+                    this.logger("Listen now to " + this.HOST + ":" + this.PORT);
+                });
+            } else {
+                this.Server.listen(this.PORT, () => {
+                    this.logger("Listen now to [any]:" + this.PORT);
+                });
+            }
+        } catch (e) {
+            this.logger(`Error Listen to ${this.HOST}:${this.PORT}`, e)
+            throw new Error(`Error Listen to ${this.HOST}:${this.PORT}`)
+        }
+    }
+
+    public static createResponseHeader (data:any) : string {
+        const header = [data[0]];
+
+        //switch around sender/receiver names
+        const app = data[0][3];
+        const fac = data[0][4];
+        header[0][3] = data[0][5];
+        header[0][4] = data[0][6];
+        header[0][5] = app;
+        header[0][6] = fac;
+        const now = new Date();
+        const dt = now.getFullYear() + "" +
+            ("0" + (now.getMonth()+1)).slice(-2) + "" +
+            ("0" + now.getDate()).slice(-2) + "" +
+            ("0" + now.getHours()).slice(-2) + "" +
+            ("0" + now.getMinutes()).slice(-2) + "" +
+            ("0" + now.getSeconds()).slice(-2);
+        const msgid = (dt + Math.random()).substring(0, 22);
+        header[0][7] = dt;
+        header[0][9] = "ACK";
+        header[0][10] = msgid;
+
+        return hl7.serializeJSON(header);
+    }
+
+    public createResponse(data: any, ack_type: string, error_msg?: string) : string {
+        //get message ID
+        const msg_id = data[0][10]; // or 10?
+        return MLLPServer.createResponseHeader(data)  + "\r" + "MSA|" + ack_type + "|" + msg_id + (error_msg && error_msg.length>0?"|" + error_msg:"");
+    };
+
+    public handleAck (event: any, mode: any) : void {
+        if (event && event.id && event.ack) {
+            if (this.OPENSOCKS[event.id]!==undefined) {
+                var inMsg = this.OPENSOCKS[event.id];
+                delete this.OPENSOCKS[event.id];
+
+                // prevent Timeout:
+                if (this.TIMEOUTS[event.id]!==undefined) {
+                    clearTimeout(this.TIMEOUTS[event.id]);
+                    delete this.TIMEOUTS[event.id];
+                }
+
+                if (event.hl7===undefined) {
+                    event.hl7 = hl7.parseString(inMsg.org);
+                }
+
+                try {
+                    var ack;
+                    if ((typeof event.ack) === "object" && (typeof event.ack.render)==="function") {
+                        ack = event.ack.render();
+                    } else if ((typeof event.ack) === "object") {
+                        ack = hl7.serializeJSON(event.ack);
+                    } else if ((typeof  event.ack) === "string" && event.ack.length === 2 && event.hl7) {
+                        ack = this.createResponse(event.hl7, event.ack);
+                    } else if ((typeof  event.ack) === "string") {
+                        ack = event.ack;
+                    } else {
+                        ack = this.createResponse(event.hl7, "AA");
+                    }
+                    inMsg.sock.write(VT + ack + FS + CR);
+                } catch (e) {
+                    this.logger("Error sending response in mode " + mode, e);
+                }
+            } else {
+                this.logger("Reponse already send! Cannot process another response in mode " + mode ,event);
+            }
+        } else {
+            this.logger("Response without Message ID?", event);
+        }
+    };
+
+
+
+    public response(event: any) {
+        this.handleAck(event, "direct");
+    };
+
+    public sendResponse (msgId: string, ack: string) {
+        this.response({id: msgId, ack:ack});
+    };
+
+    public send (receivingHost: string, receivingPort: number,
+                 hl7Data:Buffer|Renderable|string,
+                 callback: (err: Error|null, response: string|null) => void
+    ) {
+        mllpSendMessage(receivingHost, receivingPort, hl7Data, callback, this.logger);
+    }
+
+    public close (done?: (err?: Error) => void) {
+      this.Server.close(done);
+    }
+
+}
diff --git a/test/test.js b/test/test.js
index 3846984..c172acf 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,6 +1,6 @@
 var assert = require('chai').assert;
 var fs = require('fs');
-var mllp = require('../index.js');
+var mllp = require('../src/index.js');
 var net = require('net');
 
 var VT = String.fromCharCode(0x0b);
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..75dcaea
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,103 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig to read more about this file */
+
+    /* Projects */
+    // "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
+    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
+    // "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
+    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
+    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
+    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
+
+    /* Language and Environment */
+    "target": "es2016",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
+    // "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */
+    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
+    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
+    // "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
+    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
+    // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
+
+    /* Modules */
+    "module": "commonjs",                                /* Specify what module code is generated. */
+    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
+    // "moduleResolution": "node",                       /* Specify how TypeScript looks up a file from a given module specifier. */
+    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+    // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
+    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
+    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
+    // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
+    // "resolveJsonModule": true,                        /* Enable importing .json files. */
+    // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
+
+    /* JavaScript Support */
+    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
+    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
+
+    /* Emit */
+    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+    // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
+    // "outDir": "./",                                   /* Specify an output folder for all emitted files. */
+    // "removeComments": true,                           /* Disable emitting comments. */
+    // "noEmit": true,                                   /* Disable emitting files from a compilation. */
+    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+    // "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types. */
+    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+    // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
+    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
+    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
+    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
+    // "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
+    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
+    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
+    // "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
+    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
+    // "preserveValueImports": true,                     /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
+
+    /* Interop Constraints */
+    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
+    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
+    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
+    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
+
+    /* Type Checking */
+    "strict": true,                                      /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
+    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+    // "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
+    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
+    // "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
+    // "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
+    // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
+    // "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
+    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
+    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
+    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
+    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
+    // "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
+    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
+    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
+    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
+    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
+
+    /* Completeness */
+    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
+    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
+  }
+}