#2 Add GH Workflow to test backend via Postman

This commit adds a workflow that tests the backend based on the
Postman tests. The workflow is triggered on every push to the
repository. This is, roughly, a transaltion of the GitLab CI
pipeline to GitHub Actions.

.github/workflows/server.yml

@@ -0,0 +1,32 @@
+name: Express.js, Postman backend - SEManager 
+
+# On every push, the Backend shall be tested.
+on: [push]
+
+jobs:
+ test:
+ runs-on: ubuntu-latest
+ env:
+ # URL and port definition for mongodb on the runner
+ MONGODB_URI: "mongodb:https://localhost:27017/serverTestDB"
+ steps:
+ - uses: actions/checkout@v4
+ - uses: actions/setup-node@v3
+ with:
+ node-version: 16
+ cache: 'npm'
+ # Caching in monorepos (server)
+ cache-dependency-path: server/package-lock.json
+ - name: Start MongoDB service
+ # Using supercharge to setup/start the MongoDB service
+ uses: supercharge/[email protected]
+ with:
+ mongodb-version: 4.4 
+ - name: Install dependencies
+ run: |
+ cd server
+ npm ci
+ - name: Test the backend
+ run: |
+ cd server
+ npm run ci-test