Add package.json and index.js files

index.js

@@ -0,0 +1,95 @@
+const express = require('express');
+const axios = require('axios');
+const app = express();
+const port = 7000;
+
+app.use(express.json());
+
+const RETRY_ERROR_CODES = [408, 500, 502, 503, 504, 522, 524, 599];
+
+async function main() {
+
+    const responses = [];
+
+    app.get('/', (req, res) => {
+        res.send('Hello World!');
+    });
+    
+    app.listen(port, () => {
+        console.log(`Example app listening at http://localhost:${port}`);
+    });
+
+    async function RegisterResponse(instanceId, response) {
+        if (!responses[instanceId]) {
+            responses[instanceId] = []
+        }
+        responses[instanceId].push({
+            id: response.id,
+            data: response.data
+        })
+        console.log(`Response registered for instance ${instanceId}`);
+    }
+
+    async function DoRequest(instanceId, requestObj) {
+        const requestParams = requestObj.request || {};
+        const method = requestParams.Method?.toLowerCase() || 'get';
+        const url = requestParams.Url || '';
+        const body = requestParams.Body || '';
+
+        let headers = requestParams.Headers || null;
+        // if headers is a an array or is an empty object, convert it to null
+        if (Array.isArray(headers) || Object.keys(headers).length === 0) {
+            headers = null;
+        }
+
+        const shouldHaveBody = ['post', 'put', 'patch'].includes(method);
+
+        console.log(instanceId,requestObj)
+
+        try {
+            const response = await axios({
+                method: method,
+                url: url,
+                headers: headers,
+                data: shouldHaveBody ? body : null
+            });
+
+            RegisterResponse(instanceId, {
+                id: requestObj.id,
+                data: response.data
+            });
+        } catch (error) {
+            console.error(error);
+        }
+    }
+
+
+    app.post('/:instanceId', async (req, res) => {
+        const instanceId = req.params.instanceId;
+        //console.log(`Instance ID: ${instanceId}`);
+        const body = req.body;
+        const requests = body.requests || [];
+        const waiting = body.waiting || []
+        //console.log(body);
+        
+        requests.forEach(requestObj => {
+            DoRequest(instanceId,requestObj);
+        });
+
+        const toSend = [];
+        const instanceResponses = responses[instanceId] || [];
+        //console.log(instanceResponses,waiting);
+        instanceResponses.forEach(respObj => {
+            if (waiting.includes(respObj.id)) {
+                toSend.push(respObj);
+                console.log(`Response sent for instance ${instanceId}`);
+            }
+        });
+
+        res.send({
+            responses: toSend
+        });
+    })
+}
+
+main();