Based on the Serverless Stack guide.
Original starter code & README can be found here: Serverless Node.js Starter
A Serverless starter that adds ES7 syntax, serverless-offline, linting, environment variables, and unit test support. Part of the Serverless Stack guide.
It uses: the serverless-bundle plugin (an extension of the serverless-webpack plugin) and the serverless-offline plugin.
It supports:
- Generating optimized Lambda packages with Webpack
- Use ES7 syntax in your handler functions
- Use
importandexport
- Use
- Run API Gateway locally
- Use
serverless offline start
- Use
- Support for unit tests
- Run
npm testto run your tests
- Run
- Sourcemaps for proper error messages
- Error message show the correct line numbers
- Works in production with CloudWatch
- Lint your code with ESLint
- Add environment variables for your stages
- No need to manage Webpack or Babel configs
To create a new Serverless project.
$ serverless install --url https://github.com/AnomalyInnovations/serverless-nodejs-starter --name my-projectEnter the new directory
$ cd my-projectInstall the Node.js packages
$ npm installTo run a function on your local
$ serverless invoke local --function helloTo simulate API Gateway locally using serverless-offline
$ serverless offline startDeploy your project
$ serverless deployDeploy a single function
$ serverless deploy function --function helloRun your tests using
$ npm testWe use Jest to run our tests. You can read more about setting up your tests here.
To add environment variables to your project
- Rename
env.exampleto.env. - Add environment variables for your local stage to
.env. - Uncomment
environment:block in theserverless.ymland reference the environment variable as${env:MY_ENV_VAR}. WhereMY_ENV_VARis added to your.envfile. - Make sure to not commit your
.env.
We use ESLint to lint your code via the serverless-bundle plugin.
You can turn this off by adding the following to your serverless.yml.
custom:
bundle:
linting: falseTo override the default config, add a .eslintrc.json file. To ignore ESLint for specific files, add it to a .eslintignore file.