Serverless 1.x training

This one-day tutorial walks you through with the Serverless Framework. It is intended for people already familiar with JavaScript and preliminary Node.js knowledge.

After this tutorial, you should:

Be able to create a Serverless service on your own
Know what happens under the hood in AWS and in Serverless framework
Have a simple, but testable and production ready service

Supplementary material:

Serverless Computing presentation: https://bit.ly/2m8vqUV
Cheat Sheet: Cheatsheet

Prerequisites

Node.js installed (the tutorial uses v7.5.0)
Personal AWS account
A HTTP client (the tutorial uses Postman)
Serverless 1.X installed (the tutorial uses 1.7.0)

Sessions

Session 1: Hello World in Serverless

Goal: Get to know Serverless CLI and how it plays with AWS. We create a simple Serverless service.

Demo:

Configure the environment
Create run, deploy & delete a Serverless function
Create a HTTP(S) endpoint
Peek into Serverless YAML configuration
Peek under the hood: What happened in AWS: Lambda, API Gateway, Cloudwatch

Exercise: Set up your own project, run, deploy!

Configure your credentials
Create a Hello, World that accepts input
Invoke it remotely & over HTTPS - experiment with the data that API Gateway provides
Deploy & monitor the logs when you call it
Optional: Write error handler(s) supporting a few types of input
- Path
- JSON body
- Query string

More information:

Git branch 01-hello-world
API Gateway proxy format

Session 2: Project layout for a real Serverless project

Goal: Learn to structure Serverless service so that it can scale for a few dozen services/endpoints.

Demo:

Creating a sample project layout
Calling remote services with request-promise-lite

Exercise: Modify your project layout, call remote services.

Slackbot hook that does something
Simple REST wrapper of your target API (Google Wiki with hard-coded credentials)

(Optional: Create dev/test/alpha/prod stages)

More information:

Git branch 02-large-project-layout
Slack Slash commands

Session 3: Using plugins

Goal: Understand Serveless plugin system and how everything in Serverless is actually a plugin. Peek into a few plugins that you will use in real life.

Demo:

Storing secrets with serveress-secrets
Minifying builds & supporting ES2015+ using Babel & Webpack with serverless-webpack
Testing Serverless functions with serverless-jest

Exercise:

Safe storage of your secrets
Basic automated system tests of your app
(Optimized bundle)

Notes:

sls webpack serve does not work with Proxy Lambdas :(
Lambda wrapper in serverless-jest-plugin only wraps Lambda body (no headers, paths etc.)
Many npm modules will not tolerate web pack (will be solved in later exercise)

More information:

Session 4: CloudFormation Resources, Database Connectivity

Demo:

Creating a AWS RDS (Postgres) instance using CloudFormation
Simple database migration script using Knex
Reorganising your project so that it works with node modules that do not support webpack

Exercise:

Create simple DAO connectivity for your service

Notes:

This is the hardest session, because it opens all the gory details of Webpack incompatibilities, large module dependency graphs and CloudFormation failures
Do not do CloudFormation in your individual exercises - you are provided with credentials.

More information:

Git branch 04-serverless-cloudformation-db
Knex and Objection DB wrappers
CloudFormation templates

Session 5: Serverless & Web Frontends

Goal: Understand that with some dirty tricks, you can create very-low cost web services using S3 and AWS Lambda.

Exercise:

Finish your Slackbot
(Write a simple web frontend as an alternative command channel, if the time permits)

Notes:

There is no Git branch prepared - this is a walkthrough of AWS Squirrelbin sample

More information:

AWS Squirrelbin sample

laurisvan/serverless-training

ErrorLooks like something went wrong!

About

Resources

Uh oh!

Stars

Watchers

Forks

Releases

Packages 0

Error
Looks like something went wrong!

Packages