chore: add .env.example for easier environment setup and refine .giti…

…gnore (#15)

I’ve made a couple of updates here to developer experience:
 - Added `.env.example` for easier environment setup
This provides a template for environment variables, helping developers
get their local setup configured quickly.

- Updated `.gitignore` to exclude Azurite local storage files
We’ve added patterns to ignore Azurite's local storage files
`(__azurite_db_*, __blobstorage__, __queuestorage__)`, keeping the
working directory cleaner during local development.

.gitignore

@@ -44,4 +44,9 @@ JsonStorage.json
 *.crt
 *.pem
 *.key
-*.cnf
+*.cnf
+
+# Azurite local storage files
+__azurite_db_*
+__blobstorage__
+__queuestorage__

api/.env.example

@@ -0,0 +1,71 @@
+##########################################
+# Environment Variables for CodePush Server
+##########################################
+
+# ==============================
+# Storage Configuration (REQUIRED - choose one)
+# ==============================
+EMULATED=false # Set to 'true' to use the local emulator
+
+# --- Azure Storage Configuration ---
+AZURE_STORAGE_ACCOUNT=    # Azure storage account name
+AZURE_STORAGE_ACCESS_KEY= # Azure storage access key (if KeyVault not used)
+
+# ==============================
+# Server Configuration (REQUIRED)
+# ==============================
+SERVER_URL=http://localhost:3000 # The URL of your server
+
+# ==============================
+# Authentication (REQUIRED - at least one provider)
+# ==============================
+
+# --- GitHub OAuth ---
+GITHUB_CLIENT_ID=     # GitHub OAuth client ID
+GITHUB_CLIENT_SECRET= # GitHub OAuth client secret
+
+# --- Microsoft OAuth ---
+MICROSOFT_CLIENT_ID=     # Microsoft OAuth client ID
+MICROSOFT_CLIENT_SECRET= # Microsoft OAuth client secret
+
+# ==============================
+# Optional Configuration
+# ==============================
+
+# --- HTTPS Configuration ---
+HTTPS= # Set to 'true' to enable HTTPS for local deployment
+
+# --- Debugging Configuration ---
+LOGGING=false            # Enable CodePush-specific logging
+DEBUG_DISABLE_AUTH=false # Disable OAuth authentication route
+DEBUG_USER_ID=           # Backend user ID for debugging session
+
+# ==============================
+# Redis Configuration
+# ==============================
+REDIS_HOST=     # Redis server IP address
+REDIS_PORT=6379 # Redis port (default: 6379)
+REDIS_KEY=      # Redis authentication key
+
+# ==============================
+# Unit Testing Configuration
+# ==============================
+TEST_AZURE_STORAGE=false # Run API unit tests against Azure storage
+AZURE_ACQUISITION_URL=   # URL for acquisition tests
+
+# ==============================
+# Other Configuration
+# ==============================
+DISABLE_ACQUISITION=false        # Disable acquisition routes
+DISABLE_MANAGEMENT=false         # Disable management routes
+ENABLE_ACCOUNT_REGISTRATION=true # Enable account registration
+UPLOAD_SIZE_LIMIT_MB=200         # Max file upload size (in MB)
+ENABLE_PACKAGE_DIFFING=false     # Enable generating diffs for releases
+
+# ==============================
+# Azure KeyVault Configuration (Optional)
+# ==============================
+AZURE_KEYVAULT_ACCOUNT=               # Azure KeyVault account name
+CLIENT_ID=                            # Active Directory app client ID
+CERTIFICATE_THUMBPRINT=               # AD app certificate thumbprint
+REFRESH_CREDENTIALS_INTERVAL=86400000 # Credential refresh interval (in ms, default: 1 day)

api/ENVIRONMENT.md

@@ -2,7 +2,7 @@
 
 The CodePush Server is configured using environment variables.
 
-Currently, the following environment variables are available. For convenience, we will also load the server environment from any '.env' file in the api directory, and the test environment from any '.test.env' file in the root directory.
+For convenience, we will also load the server environment from any '.env' file in the api directory, and the test environment from any '.test.env' file in the root directory. Use the `.env.example` file as a template for setting up your environment variables.
 
 ## Mandatory parameters
 

api/README.md

@@ -16,11 +16,26 @@ Additionally, you need to specify [EMULATED](ENVIRONMENT.md#emulated) flag equal
 
 #### Steps
 To run the CodePush Server locally, follow these steps:
-1. Clone the CodePush Service repository.
-1. Create a `.env` file and configure the mandatory variables as outlined in the `ENVIRONMENT.md` file.
-1. Install dependencies by running `npm install`.
-1. Build the server by running `npm run build`.
-1. Start the server by running `npm run start:env`.
+
+1. Clone the CodePush Service repository to your local machine.
+
+2. Copy the `.env.example` file to a new file named `.env` in the root directory:
+   ````bash
+   cp .env.example .env
+   ````
+   Fill in the values for each environment variable in the `.env` file according to your development or production setup.
+3. Install all necessary dependencies:
+   ````bash
+   npm install
+   ````
+4. Compile the server code:
+   ````bash
+   npm run build
+   ````
+5. Launch the server with the environment-specific start command:
+   ````bash
+   npm run start:env
+   ````
 
 By default, local CodePush server runs on HTTP. To run CodePush Server on HTTPS: