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Introduction

This starter allows you to quickly bootstrap a Golang app that leverages Graphql ( powered by gqlgen framework). This is my opinionated way of writing a Graphql application quickly by cloning this template.

A detailed intro on this starter can be found here.

https://medium.com/@shanmukhsista/i-created-a-golang-graphql-project-starter-to-build-high-performance-cloud-native-production-apis-41bb55c05f7

Getting started

To Get started, get started, simply click on the Use this template on the top right section above the code listing.

For a detailed tutorial on getting started and renaming your entities, please refer to this article.

Pre Requisites for Development

Below are a list of dependencies that are required to get started with this repository.

  1. Wire Dependency Injection a. https://github.com/google/wire
  2. TaskFile https://taskfile.dev/
  3. Labstack Echo https://github.com/labstack/echo

Running Graphql Server Application.

To run the graphql server, execute the following command from repository root.

task run-graphql-server

task: [run-graphql-server] go build -o graphql-server
task: [run-graphql-server] PORT=7777 ./graphql-server -configpath ./config/dev/config.yaml
{"level":"debug","time":"2022-11-18T21:52:55-05:00","message":"Using config path %!s(**string=0xc0002061c8)"}

   ____    __
  / __/___/ /  ___
 / _// __/ _ \/ _ \
/___/\__/_//_/\___/ v4.9.0
High performance, minimalist Go web framework
https://echo.labstack.com
____________________________________O/_______
                                    O\
⇨ http server started on [::]:7777

If you see the server started message, visit http://localhost:7777/ in your browser to access graphql ui.

Try the following mutation to create a note.

mutation{
  createNewNote(input:{title:"Hello, my new Note!" , 
    content:"Some long note content"}){
    id
    title
    content
  }
}

General Guidelines

All Methods that are prefixed with Must* should generate a panic on failure.

Error Handling Rules

  • Every error must be of type appError. Use the helpers provided within the apperrors.go file to create new ones.
  • Each error must have a unique key associated with it. Translations must be specified within the error_messages.json file.

Creating a new Database Migration

This application uses postgres database as an example. To create a new migration , use the following command and define your database migration scripts.

You can manually apply the migrations or use golang-migrate to configure automatic migration config.

migrate create -ext sql -dir migrations/ -seq initial_notes_schema