Implement atob via K6 encoding (#139)

* Implement atob via K6 encoding

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased](https://github.com/apideck-libraries/postman-to-k6/compare/v1.8.7...HEAD)
 
+
+- Implement Atob via K6 encoding (#86)
 - Extended pm.request with support for headers, url, method, name, id, body, body.raw
 
 ## [1.12.0] - 2024-07-31

lib/common/feature.js

@@ -67,6 +67,15 @@ function detectFeature(logic, result) {
     result.polyfills.add('spo-gpo');
     result.effectImports.add(xml2JsonPath);
   }
+
+  if (/\batob\b/.test(logic)) {
+    let atobPath = './libs/shim/atob.js';
+    if (result?.setting?.separate === true) {
+      const pathDepth = renderDirectoryPathGroup(result.group);
+      atobPath = `${pathDepth}libs/shim/atob.js`;
+    }
+    result.effectImports.add(atobPath);
+  }
 }
 
 function renderDirectoryPathGroup(group) {

lib/shim/atob.js

@@ -0,0 +1,6 @@
+import { b64decode } from 'k6/encoding';
+function atob(str) {
+  return b64decode(str, 'std', 's');
+}
+
+global.atob = atob;