This package has been deprecated
This package is deprecated. netlify-lambda now supports TypeScript.
Netlify Lambda CLI
This is a small CLI tool that helps with building or serving lambdas built with a simple webpack/babel setup.
The goal is to make it easy to work with Lambda's with modern ES6 without being dependent on having the most state of the art node runtime available in the final deployment environment and with a build that can compile all modules into a single lambda file.
Netlify lambda installs two commands:
netlify-lambda serve <folder> netlify-lambda build <folder>
Both depends on a
netlify.toml file being present in your project and configuring functions for deployment.
serve function will start a dev server and a file watcher for the specified folder and route requests to the relevant function at:
http://localhost:9000/hello -> folder/hello.js (must export a handler(event, context callback) function)
build function will run a single build of the functions in the folder.
Proxying for local development
When your function is deployed on Netlify, it will be available at
/.netlify/functions/function-name for any given deploy context. It is advantageous to proxy the
netlify-lambda serve development server to the same path on your primary development server.
Say you are running
webpack-serve on port 8080 and
netlify-lambda serve on port 9000. Mounting
/.netlify/functions/ on your
webpack-serve server (
localhost:8080/.netlify/functions/) will closely replicate what the final production environment will look like during development, and will allow you to assume the same function url path in development and in production.
See netlify/create-react-app-lambda for an example of how to do this.
moduleexports =mode: 'development'devServer:proxy:"/.netlify":target: ""pathRewrite: "^/.netlify/functions" : ""
By default the webpack configuration uses
babel-loader to load all js files. Any
.babelrc in the directory
netlify-lambda is run from will be respected. If no
.babelrc is found, a few basic settings are used.
If you need to use additional webpack modules or loaders, you can specify an additional webpack config with the
-c option when running either
The additional webpack config will be merged into the default config via webpack-merge's