https://github.com/topliceanu/graphql-go-example

Example GraphQL API implemented in Go and backed by Postgresql
https://github.com/topliceanu/graphql-go-example

golang graphql postgresql

Last synced: about 1 month ago
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Example GraphQL API implemented in Go and backed by Postgresql

• Host: GitHub
• URL: https://github.com/topliceanu/graphql-go-example
• Owner: topliceanu
• License: mit
• Created: 2017-01-02T21:06:04.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2017-01-04T23:49:48.000Z (almost 8 years ago)
• Last Synced: 2024-06-20T03:45:02.692Z (6 months ago)
• Topics: golang, graphql, postgresql
• Language: Go
• Size: 9.77 KB
• Stars: 143
• Watchers: 8
• Forks: 26
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# graphql-go-example

Example GraphQL API implemented in Go and backed by Postgresql

## How to run it

To run this project you need to:

- install golang, see [this guide](https://golang.org/doc/install)

- install [Masterminds/glide](https://github.com/Masterminds/glide) which is a package manager for golang projects.

- install all the dependencies for this project: `glide install`, glide will store all dependencies in `/vendor` folder.

- install postgresql (for ubuntu follow [this guide](https://help.ubuntu.com/community/PostgreSQL)). For this application, I created a postgresql user called `vagrant` with `vagrant` as password and the database called `graphql`, but of course you can change these settings in `./migrate.sh` and in `./main.go` files.

- install [mattes/migrate](https://github.com/mattes/migrate) which is a tool to create and run migrations against sql databases.

- run the migrations which will create the database tables and indexes `./migrate.sh up`. If you ever want to clean up the the database run `./migrate.sh down` then `./migrate.sh up` again.

## Commands

This application exposes a single endpoints `/graphql` which accepts both mutations and queries.

The following are examples of curl calls to this endpoint:

```bash

curl -XPOST http://vm:8080/graphql -d 'mutation {createUser(email:"[email protected]"){id, email}}'

curl -XPOST http://vm:8080/graphql -d 'mutation {createUser(email:"[email protected]"){id, email}}'

curl -XPOST http://vm:8080/graphql -d 'mutation {follow(follower:1, followee:2)}'

curl -XPOST http://vm:8080/graphql -d 'mutation {unfollow(follower:1, followee:2)}'

curl -XPOST http://vm:8080/graphql -d '{user(id:2){followers{id, email}}}'

curl -XPOST http://vm:8080/graphql -d '{user(id:1){followers{id, email}}}'

curl -XPOST http://vm:8080/graphql -d '{user(id:2){follower(id:1){ email}}}'

curl -XPOST http://vm:8080/graphql -d '{user(id:1){followees{email}}}'

curl -XPOST http://vm:8080/graphql -d '{user(id:1){followee(id:2){email}}}'

curl -XPOST http://vm:8080/graphql -d 'mutation {createPost(user:1,title:"p1",body:"b1"){id}}'

curl -XPOST http://vm:8080/graphql -d 'mutation {createComment(user:1,post:1,title:"t1",body:"b1"){id}}'

curl -XPOST http://vm:8080/graphql -d 'mutation {removeComment(id:1)}'

curl -XPOST http://vm:8080/graphql -d 'mutation {removePost(id:1)}'

curl -XPOST http://vm:8080/graphql -d '{user(id:1){post(id:2){title,body}}}'

curl -XPOST http://vm:8080/graphql -d '{user(id:1){posts{id,title,body}}}'

curl -XPOST http://vm:8080/graphql -d '{user(id:1){post(id:2){user{id,email}}}}'

```