Learn NETLIFY-FUNCTIONS with Real Code Examples

Contact form submission handler

Serverless blog comment API

Webhook listener for GitHub events

Image processing endpoint

Scheduled function for newsletter delivery

Check Netlify function logs in CLI or dashboard

Verify file naming and export format

Ensure environment variables are set

Validate Node.js version compatibility

Check deployment status via Netlify dashboard

Use `netlify dev` to test functions locally

Unit test function logic with Jest or Mocha

Mock external API calls

Validate environment variables

Test HTTP responses and status codes

Deploy with `netlify deploy` CLI command

Deploy automatically via Git push to Netlify repo

Preview deploys for PRs and staging

Environment-specific deployment via branches

Continuous deployment integrated with Git

Netlify CLI

Netlify Dev for local testing

Netlify Build Plugins

AWS Lambda under the hood

JavaScript/TypeScript runtime support

Static site hosting

Third-party APIs (Stripe, Mailchimp, etc.)

Form handling services

GitHub/GitLab for CI/CD

Netlify Identity for authentication

Use Netlify Dev for rapid local iteration

Reuse common function utilities

Keep dependencies minimal for faster cold starts

Automate deployments via Git integration

Leverage environment variables for flexible configurations

Debugging functions remotely

Cold-start and execution time limitations

Integrating with external services

Handling authentication/authorization

Managing multiple functions in one project