Serverless Stack Tutorial Notes API

The corresponding Notes App Client is here: https://github.com/quanganhhoang/notes-app-frontend

A demo of the completed app can be seen here.

Checkpoint updates

Checkpoint 4

• What was done?
  • Infrastructure as code with AWS CDK and Serverless Stack Toolkit
  • CI/CD with AWS CodePipeline including AWS CodeBuild
  • Monitoring and Debugging - techniques to save logs and alert developers for errors happening in prod such as:
    • Push backend logs to CloudWatch
    • An ErrorBoundary React component as a fallback to catch errors as it happens (and not when app crashes when re-rendering) and saves it with another service (e.g. Sentry)
  • AWS IAM roles/policies
  • AWS config yaml files for select services
• A screenshot of the terminal output of running serverless deploy -v in the "Deploy Your Serverless Infrastructure" section.
• A screenshot of the modified deployed app with the "Login" and "Signup" buttons.
• Link to the final deployed app here
• Screenshot of AWS billing dashboard displaying costs so far

Checkpoint 3

• Progress: I have finished the tutorial up until Domains and Hosting. Notes app is deployed on AWS S3 and served with CloudFront.
• Checkpoint 3 progress screenshot(s)
• Checkpoint 3 AWS billing info screenshot
• At least 10 incremental commits in the commit history since checkpoint 2

Checkpoint 2

• Progress: same as checkpoint #1 ~ I have finished up until "Adding auth to a React app" of the serverless tutorial.
• Checkpoint 2 app progress screenshot(s)
• Checkpoint 2 AWS billing info screenshot
• Checkpoint 2 question answers
• At least 10 incremental commits in the commit history since checkpoint 1

Checkpoint 1

• Progress: I have finished up until "Adding auth to a React app" of the serverless tutorial.
• Screenshot of DynamoDB table
• Screenshot of list notes API endpoint
• Screenshot of AWS billing dashboard
• Working links to API endpoints
  • [GET/POST] https://cllwsrrf55.execute-api.us-west-2.amazonaws.com/prod/notes
  • [GET/PUT/DELETE] https://cllwsrrf55.execute-api.us-west-2.amazonaws.com/prod/notes/{id}

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Serverless Node.js Starter

A Serverless starter that adds ES6, TypeScript, serverless-offline, linting, environment variables, and unit test support. Part of the Serverless Stack guide.

Serverless Node.js Starter uses the serverless-bundle plugin and the serverless-offline plugin. It supports:

• Generating optimized Lambda packages with Webpack
• Using ES6 or TypeScript in your handler functions
• Run API Gateway locally
  • Use serverless offline start
• Support for unit tests
  • Run npm test to run your tests
• 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

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Demo

A demo version of this service is hosted on AWS - https://z6pv80ao4l.execute-api.us-east-1.amazonaws.com/dev/hello

And here is the ES6 source behind it

export const hello = async (event, context) => {
  return {
    statusCode: 200,
    body: JSON.stringify({
      message: `Go Serverless v1.0! ${(await message({ time: 1, copy: 'Your function executed successfully!'}))}`,
      input: event,
    }),
  };
};

const message = ({ time, ...rest }) => new Promise((resolve, reject) =>
  setTimeout(() => {
    resolve(`${rest.copy} (with a delay)`);
  }, time * 1000)
);

Upgrading from v1.x

We have detailed instructions on how to upgrade your app to the v2.0 of the starter if you were using v1.x before. Read about it here.

Requirements

• Install the Serverless Framework
• Configure your AWS CLI

Installation

To create a new Serverless project.

$ serverless install --url https://github.com/AnomalyInnovations/serverless-nodejs-starter --name my-project

Enter the new directory

$ cd my-project

Install the Node.js packages

$ npm install

Usage

To run a function on your local

$ serverless invoke local --function hello

To simulate API Gateway locally using serverless-offline

$ serverless offline start

Deploy your project

$ serverless deploy

Deploy a single function

$ serverless deploy function --function hello

Running Tests

Run your tests using

$ npm test

We use Jest to run our tests. You can read more about setting up your tests here.

Environment Variables

To add environment variables to your project

1. Rename env.example to .env.
2. Add environment variables for your local stage to .env.
3. Uncomment environment: block in the serverless.yml and reference the environment variable as ${env:MY_ENV_VAR}. Where MY_ENV_VAR is added to your .env file.
4. Make sure to not commit your .env.

TypeScript

If serverless-bundle detects a tsconfig.json in your service root, it'll compile it using TypeScript. We have a separate starter for TypeScript here, Serverless TypeScript Starter.

Linting

We use ESLint to lint your code via serverless-bundle.

You can turn this off by adding the following to your serverless.yml.

custom:
  bundle:
    linting: false

To override the default config, add a .eslintrc.json file. To ignore ESLint for specific files, add it to a .eslintignore file.

Support

• Open a new issue if you've found a bug or have some suggestions.
• Or submit a pull request!

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This repo is maintained by Anomaly Innovations; makers of Seed and Serverless Stack.