A Kotlin Spring boot backend that powers ComposeActors. It provides secure REST endpoints for managing personal watchlist and is ready for cloud deployment.
| Layer | Implementation |
|---|---|
| Language | Kotlin |
| Framework | Spring Boot (REST, Security, Data MongoDB) |
| Database | MongoDB Atlas |
| Auth/IAM | AWS Cognito • JWT access-tokens (OAuth 2 Resource Server) |
| Hosting | Google Cloud Run • Serverless containers (managed, autoscaling) |
| CI | GitHub Actions for tests • Cloud Build trigger for deploy |
| Key | Description | Example (dev) |
|---|---|---|
COGNITO_ISSUER_URI |
OIDC discovery URL of your AWS Cognito user‑pool | https://cognito-idp.domain/XXXXXXX |
MONGO_URI |
SRV connection string (includes credentials) | mongodb+srv://user:pw@cluster.mongodb.net |
MONGO_DATABASE |
Database name to use | compose-actors |
# 1. clone & set vars
cp env.properties.sample env.properties
# 2. bootRun (hot‑reload)
./gradlew bootRun
# 3. verify
curl http://localhost:8080/public/health-
Containerize via Cloud Build Trigger Your trigger will build and push
gcr.io/YOUR_PROJECT/compose-actors-backend. -
Environment Variables in Cloud Run In the Cloud Run console, under Variables & Secrets, add:
COGNITO_ISSUER_URIMONGO_URIMONGO_DATABASE
-
Always-warm instance - To eliminate cold starts, edit the service’s Autoscaling and set Min instances = 1.
Copyright 2025 Rajasekhar K E
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.