add sample hello endpoint and configuration

Author: ohdoking

.env

@@ -0,0 +1,3 @@
+DB_URL=
+DB_USER=
+DB_PASSWORD=

.github/workflows/deploy-to-ecr.yaml

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+name: Deploy to AWS ECR
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  AWS_REGION: "eu-central-1"
+  
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      # Checkout the code
+      - name: Checkout Code
+        uses: actions/checkout@v3
+
+      # Set up AWS credentials
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: ${{ env.AWS_REGION }}
+          
+      # Login to Amazon ECR
+      - name: Login to Amazon ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v2
+
+      # Build and tag the Docker image
+      - name: Build and Tag Docker Image
+        run: |
+          docker build -t fast-python-mongo-demo-app .
+          docker tag fast-python-mongo-demo-app:latest ${{ steps.login-ecr.outputs.registry }}/fast-python-mongo-demo-app:latest
+
+      # Push the Docker image to Amazon ECR
+      - name: Push Docker Image to Amazon ECR
+        run: |
+          docker push ${{ steps.login-ecr.outputs.registry }}/fast-python-mongo-demo-app:latest

Dockerfile

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+# Use an official Python base image with Python 3.12
+FROM python:3.12-slim
+
+# Working Directory
+WORKDIR /app
+
+# Copy Files
+COPY . /app
+
+# Step 4: Install Poetry
+RUN pip install poetry
+
+# Step 5: Disable Virtual Environments
+RUN poetry config virtualenvs.create false
+
+# Step 6: Install Dependencies
+RUN poetry install --no-dev
+
+# Step 7: Expose Port
+EXPOSE 8000
+
+# Step 8: CMD to Run App
+CMD ["poetry", "run", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--reload"]

README.md

@@ -1 +1,15 @@
 # fast-python-mongo-demo
+
+## Local setup
+
+### how to create docker build
+```
+docker build -t fast-python-mongo-demo-app .
+```
+
+### how to run local env
+
+```
+cd local
+docker-compose up
+```

__pycache__/app.cpython-312.pyc

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+import os
+from fastapi import FastAPI
+from pydantic import BaseModel
+import motor.motor_asyncio
+
+app = FastAPI(
+    title="Fastapi and mongodb demo API",
+    summary="A sample application showing how to use FastAPI to add a ResT API to a MongoDB collection.",
+)
+
+# MongoDB setup
+# Access MongoDB credentials from environment variables
+mongodb_url = os.getenv("DB_URL", "mongodb://localhost:27017")
+mongodb_user = os.getenv("DB_USER", "root")
+mongodb_password = os.getenv("DB_PASSWORD", "pw")
+
+client = motor.motor_asyncio.AsyncIOMotorClient(
+    mongodb_url, 
+    username=mongodb_user, 
+    password=mongodb_password
+)
+db = client.college
+word_collection = db.get_collection("word")
+
+
+class WordModel(BaseModel):
+    """Model for word data."""
+    word: str
+
+
+@app.get(
+    "/hello",
+    response_description="Get hello world",
+    response_model=WordModel,
+)
+async def get_helloworld():
+    """
+    Returns a hello world message. If word exists in the collection, return 'Hello {word}', 
+    otherwise return 'Hello None'.
+    """
+    word_document = await word_collection.find_one({})  # Find the first document in the collection
+    
+    if word_document and "word" in word_document:
+        word = word_document["word"]
+    else:
+        word = "None"
+    
+    return WordModel(word=f"Hello {word}")
+
+@app.on_event("startup")
+async def startup_db():
+    """
+    Initialize the word collection at application startup if it is empty.
+    """
+    # Check if the collection is empty
+    existing_word = await word_collection.find_one({"word": {"$exists": True}})
+    if not existing_word:
+        # Initialize the word field if no document exists
+        await word_collection.insert_one({"word": "Serverless Salad Infrapal World"})
+        print("Initialized word collection with default word value.")

app/__init__.py

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+version: '3.8'
+
+services:
+  fastapi:
+    image: fast-python-mongo-demo-app:latest
+    ports:
+      - "8000:8000"
+    environment:
+      - DB_URL=mongodb://mongo:27017
+      - DB_USER=root
+      - DB_PASSWORD=pw
+    depends_on:
+      - mongo
+    networks:
+      - app-network
+
+  mongo:
+    image: mongo:latest
+    container_name: mongo-db
+    ports:
+      - "27017:27017"
+    environment:
+      - MONGO_INITDB_ROOT_USERNAME=root
+      - MONGO_INITDB_ROOT_PASSWORD=pw
+    volumes:
+      - mongo-data:/data/db
+    networks:
+      - app-network
+
+networks:
+  app-network:
+    driver: bridge
+
+volumes:
+  mongo-data:
+    driver: local