Merge pull request #81 from Arquisoft/OpenApi+pre-v0.2.0

Open api+pre v0.2.0

README.md

@@ -19,7 +19,7 @@ docker compose --profile dev up --build
 ## Meet our Team
 We are students of Software Architecture in the University of Oviedo. This web application is the laboratory project of the subject. We hope you like our webapp and we are welcomed to proposals of new content by our Issues.
 
-You can check our Documentation [here](https://arquisoft.github.io/wiq_en1a/) where all the tecnical details are explained
+You can check our Documentation [here](https://arquisoft.github.io/wiq_en1a/) where all the tecnical details are explained. Moreover, you can check our API for your free use, using Swagger, [here](http://158.179.217.182:8000/api-doc).
 
 ### Developers
 

gatewayservice/gateway-service.js

@@ -3,6 +3,11 @@ const axios = require('axios');
 const cors = require('cors');
 const promBundle = require('express-prom-bundle');
 
+//libraries required for OpenAPI-Swagger
+const swaggerUi = require('swagger-ui-express'); 
+const fs = require("fs")
+const YAML = require('yaml')
+
 const app = express();
 const port = 8000;
 
@@ -75,21 +80,6 @@ app.post('/imgs/answer', async (req, res) => {
 });
 
 
-app.get('/self', async (req, res) => {
-  try {
-    // Forward the self request to the user service
-
-    const userResponse = await axios.get(authServiceUrl+'/self', {
-      headers: {
-        Authorization: req.headers.authorization,
-      },
-    });
-
-    res.status(200).json(userResponse.data);
-  } catch (error) {
-res.status(error.response.status).json({ error: error.response.data.error });
- }
-});
 app.get('/rankings', async (req, res) => {
   try {
     // Forward the request to the user service
@@ -100,9 +90,26 @@ app.get('/rankings', async (req, res) => {
   }
 });
 
+// Read the OpenAPI YAML file synchronously
+openapiPath='./openapi.yaml'
+if (fs.existsSync(openapiPath)) {
+  const file = fs.readFileSync(openapiPath, 'utf8');
+
+  // Parse the YAML content into a JavaScript object representing the Swagger document
+  const swaggerDocument = YAML.parse(file);
+
+  // Serve the Swagger UI documentation at the '/api-doc' endpoint
+  // This middleware serves the Swagger UI files and sets up the Swagger UI page
+  // It takes the parsed Swagger document as input
+  app.use('/api-doc', swaggerUi.serve, swaggerUi.setup(swaggerDocument));
+} else {
+  console.log("Not configuring OpenAPI. Configuration file not present.")
+}
+
 // Start the gateway service
 const server = app.listen(port, () => {
   console.log(`Gateway Service listening at http://localhost:${port}`);
 });
 
+
 module.exports = server