darrensapalo/agile-backend-starter

A starter git repository for my talk on Agile Backend

Agile Backend Starter Repo

Starter repo for my talk: Agile Backend for DevConPH 2021 (December).

Project requirements

1. Typescript

2. Node / NPM or Yarn

3. Docker, docker-compose

Introduction to Hasura GraphQL Engine

Hasura has enables you to do the following:

• Focus on your business logic
• Avoid building CRUD
• Get authn, authz out of the box
• Be ready for microservice architecture, CQRS, eventing

Installation

1. Run this locally with docker-compose up -d. Access http://localhost:1104 to view the Hasura web console.

2. Destroy your local containers (including volumes) by running docker-compose down -v.

Design

Some things that will make it easy to replicate the presentation.

ERD

codes
  id: number
  code: string
  is_valid: boolean

Hasura action definition

You can manually copy this to the hasura web console, or you can do hasura metadata apply using the Hasura CLI.

type Mutation {
  service_check_qr(
    code: String!
  ): SampleOutput
}

Type definition

type SampleOutput {
  is_valid: Boolean!
  message: String
}

Handler URL

http://rapidpass-handler:8080/api/v1/check-qr