Challenge api integration

.env.example

@@ -1,21 +1,75 @@
-# KAFKA_BROKERS=localhost:29092
-# SCHEMA_REGISTRY_URL=http://localhost:8081
-# KAFKA_CLIENT_ID=autopilot-service
-# KAFKA_MAX_RETRY_TIME=30000
-# KAFKA_INITIAL_RETRY_TIME=300
-# KAFKA_RETRIES=5
+# .env.example
+# This file contains all the environment variables used by the application.
+# Copy this file to .env and fill in the appropriate values.
 
+# -------------------------------------
+# App Configuration
+# -------------------------------------
+# The environment the application is running in (development, production, test)
 NODE_ENV=development
+# The port the application will run on
 PORT=3000
+# The level of logging to display (error, warn, info, debug, verbose)
 LOG_LEVEL=info
+# The directory to store log files
 LOG_DIR=logs
 
+# -------------------------------------
 # Kafka Configuration
+# -------------------------------------
+# Comma-separated list of Kafka broker hosts
 KAFKA_BROKERS=localhost:9092
+# A unique identifier for this Kafka client instance
 KAFKA_CLIENT_ID=autopilot-service
+# The maximum time (in ms) to retry a failed Kafka operation
 KAFKA_MAX_RETRY_TIME=30000
+# The initial time (in ms) to wait before the first retry
 KAFKA_INITIAL_RETRY_TIME=300
+# The maximum number of retries for a failed Kafka operation
 KAFKA_RETRIES=5
 
+# -------------------------------------
 # Schema Registry Configuration
-SCHEMA_REGISTRY_URL=http://localhost:8081
+# -------------------------------------
+# The URL for the Confluent Schema Registry
+SCHEMA_REGISTRY_URL=http://localhost:8081
+# Optional username for Schema Registry basic authentication
+SCHEMA_REGISTRY_USER=
+# Optional password for Schema Registry basic authentication
+SCHEMA_REGISTRY_PASSWORD=
+
+# -------------------------------------
+# Challenge API Configuration
+# -------------------------------------
+# The base URL for the Topcoder Challenge API v6
+CHALLENGE_API_URL=https://api.topcoder-dev.com/v6
+# Removed static M2M token - now using Auth0 service
+# The number of retry attempts for failed Challenge API calls
+CHALLENGE_API_RETRY_ATTEMPTS=3
+# The initial delay (in ms) for the first retry attempt
+CHALLENGE_API_RETRY_DELAY=1000
+
+# -------------------------------------
+# Auth0 Configuration
+# -------------------------------------
+# The Auth0 URL for token generation (full OAuth endpoint)
+AUTH0_URL=<your-auth0-url>
+# Client ID for M2M application
+AUTH0_CLIENT_ID=<your-auth0-client-id>
+# Client secret for M2M application
+AUTH0_CLIENT_SECRET=<your-auth0-client-secret>
+# The Auth0 domain
+AUTH0_DOMAIN=<your-auth0-domain>
+# The audience/API identifier for the Challenge API
+AUTH0_AUDIENCE=<your-auth0-audience>
+# Auth0 proxy server URL (optional)
+AUTH0_PROXY_SEREVR_URL=
+
+# -------------------------------------
+# Sync Service Configuration
+# -------------------------------------
+# The cron schedule for the challenge synchronization service.
+# Uses standard cron syntax. Defaults to every 5 minutes.
+# Example: '0 */1 * * *' would run it every hour.
+SYNC_CRON_SCHEDULE='*/5 * * * *'
+