Wrangler
Wrangler, the Cloudflare Developer Platform command-line interface (CLI), allows you to manage Worker projects.
- API : A set of programmatic APIs that can be integrated with local Cloudflare Workers-related workflows.
 - Bundling : Review Wrangler's default bundling.
 - Commands : Create, develop, and deploy your Cloudflare Workers with Wrangler commands.
 -  Configuration  :  Use a 
wrangler.tomlconfiguration file to customize the development and deployment setup for your Worker project and other Developer Platform products. - Custom builds : Customize how your code is compiled, before being processed by Wrangler.
 - Deprecations : The differences between Wrangler versions, specifically deprecations and breaking changes.
 - Environments : Deploy the same Worker application with different configuration for each environment.
 - Install/Update Wrangler : Get started by installing Wrangler, and update to newer versions by following this guide.
 - Migrations : Review migration guides for specific versions of Wrangler.
 - System environment variables : Local environment variables that can change Wrangler's behavior.