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@Bhup-GitHUB Bhup-GitHUB commented Oct 31, 2025

Summary

This PR adds a corrected backend/config/config.example.yml file to serve as the canonical example for backend configuration.
It aligns the structure with config.Config in backend/config/config.go.


Changes

  • Moved gemini, jwt, and smtp to the top level (siblings to server, database, and googleOAuth).
  • Added placeholders for all secret values (no real credentials included).
  • Updated example for clarity and onboarding consistency.

Why

The previous example incorrectly nested gemini, jwt, and smtp under database, causing:

Failed to initialize Gemini client: You need an auth option to use this client.

This update ensures that cfg.Gemini.ApiKey and related keys are correctly parsed, making backend setup straightforward for new contributors.


How to Verify

  1. Populate the secret placeholders in the new config.example.yml.
  2. Run the backend.
  3. The Gemini client should initialize successfully without auth-related errors.

Notes

  • Consider adding backend/config/config.prod.yml to .gitignore to prevent accidental commits of sensitive data.
  • Related issue: #109

Summary by CodeRabbit

  • Documentation
    • Added configuration example to help with application setup, providing template values and inline guidance for configuring server settings, database connection, external API integrations, authentication tokens, email service, and social login options.

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coderabbitai bot commented Oct 31, 2025

Walkthrough

A new example configuration file is introduced that defines the structure and placeholder values for server, database, authentication (JWT, Google OAuth), email (SMTP), and Gemini API settings, serving as a reference for required backend configuration parameters.

Changes

Cohort / File(s) Change Summary
Configuration Example
backend/config/config.example.yml
Adds comprehensive example configuration structure with sections for server (port), database (uri), Gemini API (apiKey), JWT (secret, expiry), SMTP (host, port, credentials, sender details), and Google OAuth (clientID), each with placeholder values and inline descriptions

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

  • Configuration file with placeholder values and comments only; no logic or behavioral changes to evaluate
  • Straightforward key-value structure matching expected backend configuration schema

Possibly related issues

Poem

🐰 A config file hops into place,
With keys and values, neat and bright,
Example paths for every face—
Server, database, OAuth's delight!
SMTP sends, Gemini dreams deep,
Configuration secrets safe to keep!

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. You can run @coderabbitai generate docstrings to improve docstring coverage.
✅ Passed checks (2 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check ✅ Passed The PR title "docs(config): fix config.example.yml structure for correct gemini/jwt/smtp setup" directly corresponds to the main change in the changeset. The title accurately captures that the primary modification is fixing the structure of the config.example.yml file to properly organize the gemini, jwt, and smtp configuration sections at the top level (as siblings of server and database), which resolves the Gemini client initialization error. The title is concise, uses conventional commit formatting, and is specific enough that a teammate reviewing the git history would immediately understand the purpose and scope of the change without confusion.
✨ Finishing touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment

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Actionable comments posted: 2

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between f29be62 and 6594089.

📒 Files selected for processing (1)
  • backend/config/config.example.yml (1 hunks)

Comment on lines +1 to +23
server:
port: 1313 # The port number your backend server will run on

database:
uri: "mongodb+srv://<username>:<password>@<cluster-url>/<database-name>" # Replace with your MongoDB Atlas connection string # Get this from your MongoDB Atlas dashboard after creating a cluster and database

gemini:
apiKey: "<YOUR_GEMINI_API_KEY>" # API key for OpenAI / Gemini model access # Obtain from your OpenRouter.ai or OpenAI account dashboard

jwt:
secret: "<YOUR_JWT_SECRET>" # A secret string used to sign JWT tokens # Generate a strong random string (e.g. use `openssl rand -hex 32`)
expiry: 1440 # Token expiry time in minutes (e.g. 1440 = 24 hours)

smtp:
host: "smtp.gmail.com" # SMTP server host for sending emails (example is Gmail SMTP)
port: 587 # SMTP server port (587 for TLS)
username: "<YOUR_EMAIL_ADDRESS>" # Email username (your email address)
password: "<YOUR_EMAIL_PASSWORD_OR_APP_PASSWORD>" # Password for the email or app-specific password if 2FA is enabled
senderEmail: "<YOUR_EMAIL_ADDRESS>" # The 'from' email address used when sending mails
senderName: "DebateAI Team"

googleOAuth:
clientID: "<YOUR_GOOGLE_OAUTH_CLIENT_ID>" # Google OAuth Client ID for OAuth login # Obtain from Google Cloud Console (APIs & Services > Credentials > OAuth 2.0 Client IDs)
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

Verify this structure matches backend/config/config.go expectations.

Ensure that all required configuration fields expected by backend/config/config.go are represented in this example file, and that no additional fields are missing.


🏁 Script executed:

#!/bin/bash
# Description: Check if config.example.yml defines all top-level fields expected by config.go

# Identify all config struct fields parsed in config.go
echo "=== Config fields referenced in config.go ==="
rg -n "cfg\.[A-Z]" backend/config/config.go -o | head -20

# Compare with fields defined in config.example.yml
echo -e "\n=== Top-level fields in config.example.yml ==="
rg "^[a-z]" backend/config/config.example.yml

Length of output: 143


I need to examine config.go's structure directly to understand what fields it expects. Let me inspect the config struct definition.


---

🏁 Script executed:

```shell
#!/bin/bash
# Description: Examine config.go struct definition to identify expected configuration fields

echo "=== Config struct definition in config.go ==="
ast-grep --pattern $'type Config struct {
  $$$
}'

echo -e "\n=== Alternative: Search for struct tags and field names ==="
rg -n "type\s+\w*Config\w*\s+struct" backend/config/config.go -A 30

Length of output: 3422


Add missing configuration sections to config.example.yml

The example file is missing two entire configuration sections defined in backend/config/config.go:

  1. cognito section (required: appClientId, appClientSecret, userPoolId, region)
  2. openai section (required: gptApiKey)

Additionally, the SMTP and JWT structs in config.go lack yaml tags, which may cause unmarshaling issues.

Comment on lines +7 to +8
gemini:
apiKey: "<YOUR_GEMINI_API_KEY>" # API key for OpenAI / Gemini model access # Obtain from your OpenRouter.ai or OpenAI account dashboard
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⚠️ Potential issue | 🟡 Minor

Clarify the Gemini API key instruction.

The comment mentions both "OpenAI / Gemini model access" and suggests obtaining from "OpenRouter.ai or OpenAI account dashboard," but the configuration is specifically for Gemini. Clarify the source for obtaining the Gemini API key.

Apply this diff to clarify:

gemini:
-  apiKey: "<YOUR_GEMINI_API_KEY>" # API key for OpenAI / Gemini model access  # Obtain from your OpenRouter.ai or OpenAI account dashboard
+  apiKey: "<YOUR_GEMINI_API_KEY>" # API key for Gemini model access  # Obtain from Google AI Studio (https://aistudio.google.com/app/apikey)
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
gemini:
apiKey: "<YOUR_GEMINI_API_KEY>" # API key for OpenAI / Gemini model access # Obtain from your OpenRouter.ai or OpenAI account dashboard
gemini:
apiKey: "<YOUR_GEMINI_API_KEY>" # API key for Gemini model access # Obtain from Google AI Studio (https://aistudio.google.com/app/apikey)
🤖 Prompt for AI Agents
In backend/config/config.example.yml around lines 7 to 8, the gemini apiKey
comment is confusingly referencing OpenAI/OpenRouter; update the comment to
clearly state this key is for Google's Gemini and should be obtained from the
Google Cloud Console (e.g., enable Vertex AI / Gemini API and create an API key
or service account credential), and remove references to OpenRouter.ai/OpenAI so
users know to get the Gemini key from Google Cloud.

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1 participant