Set up Express for API calls.

functions/index.js

@@ -1,22 +1,43 @@
+/* eslint-disable promise/always-return */
 const functions = require('firebase-functions');
 const admin = require('firebase-admin');
-
+const app = require('express')();
 admin.initializeApp();
-// // Create and Deploy Your First Cloud Functions
-// // https://firebase.google.com/docs/functions/write-firebase-functions
-//
-exports.helloWorld = functions.https.onRequest((request, response) => {
- response.send("Hello from Firebase!");
-});
 
-exports.getUsername = functions.https.onRequest((req, res) => {
-    admin.firestore().collection('users').get()
-    .then(data => {
+const firebaseConfig = {
+    apiKey: "AIzaSyCvsWetg4qFdsPGfJ3LCw_QaaYzoan7Q34",
+    authDomain: "twistter-e4649.firebaseapp.com",
+    databaseURL: "https://twistter-e4649.firebaseio.com",
+    projectId: "twistter-e4649",
+    storageBucket: "twistter-e4649.appspot.com",
+    messagingSenderId: "20131817365",
+    appId: "1:20131817365:web:633c95fb08b16d4526b89c"
+};
+const firebase = require('firebase');
+firebase.initializeApp(firebaseConfig);
+
+app.get('/getUsers', (req, res) => {
+    admin.firestore().collection('users').get().then(data => {
         let users = [];
         data.forEach(doc => {
             users.push(doc.data());
-        })
-        return res.json(users);
-    })
-    .catch((err) => console.error(err));
-})
+        }); return res.json(users);
+    }).catch((err) => console.error(err));
+});
+
+app.post('/postUser', (req, res) => {
+    const newUser = {
+        body: req.body.body
+    };
+    admin.firestore().collection('users').add(newUser).then((doc) => {
+        res.json({
+            message: 'Successfully added!'
+        });
+    }).catch((err) => {
+        res.status(500).json({
+            error: "Error in posting user!"
+        });
+        console.error(err);
+    });
+});
+exports.api = functions.https.onRequest(app);

functions/package.json

@@ -13,6 +13,7 @@
     "node": "8"
   },
   "dependencies": {
+    "firebase": "^6.6.1",
     "firebase-admin": "^8.0.0",
     "firebase-functions": "^3.1.0"
   },