add swagger example

Express/barAndCafe/src/app.ts

@@ -1,23 +1,32 @@
-import express from "express";
+import express from "express"
 /**
  * Initialize Express application instance.
  * @returns An initialized Express application object.
  */
-const app = express();
+const app = express()
 
 
 
 /**
- * Handle GET request for homepage route ('/').
+ * Handle GET request for homepage route ('/welcome').
  * Send back a simple json response.
  * @param {express.Request} req - HTTP Request object.
  * @param {express.Response} res - HTTP Response object.
  */
 function getWelcome(req: express.Request, res: express.Response) {
-    const out = {hello:"world"};
-    res.send(out);
+    const out = {hello:"world"}
+    res.send(out)
 }
 
-app.get("/welcome", getWelcome);
+/**
+ * @openapi
+ * /welcome:
+ *   get:
+ *     description: Welcome to swagger-jsdoc!
+ *     responses:
+ *       200:
+ *         description: Returns a welcome json.
+ */
+app.get("/welcome", getWelcome)
 
-export default app;
+export default app

Express/barAndCafe/src/server.ts

@@ -1,10 +1,16 @@
 import * as dotenv from "dotenv";
 import app from "./app";
+import options from "./swaggerDef";
+const swaggerJsdoc = require("swagger-jsdoc"),
+    swaggerUi = require("swagger-ui-express");
 
 dotenv.config({path: '../../.env'})
 
 const port = parseInt(process.env.BAR_PORT || '3000')
 
+const specs = swaggerJsdoc(options)
+app.use("/api-docs", swaggerUi.serve, swaggerUi.setup(specs))
+
 app.listen(port, () =>{
     console.log(`serveur running in ${port}`)
 })

Express/barAndCafe/src/swaggerDef.ts

@@ -0,0 +1,25 @@
+import * as dotenv from "dotenv";
+dotenv.config({path: '../../.env'})
+const port = parseInt(process.env.BAR_PORT || '3000')
+
+
+const options = {
+	definition: {
+	  openapi: "3.1.0",
+	  info: {
+		title: "LogRocket Express API with Swagger",
+		version: "0.1.0",
+		description:
+		  "This is a simple CRUD API application made with Express and documented with Swagger",
+	  },
+	  servers: [
+		{
+		  url: "http://localhost:"+port.toString(),
+		},
+	  ],
+	},
+  apis: ['./src/*.ts'],
+  }
+
+
+export default options