/simple-gql-client

Simple GraphQL client without the mapping of the query into the struct. Compatible with Hasura and its custom types ( hey, bigint, we meet again ).

Primary LanguageGoMIT LicenseMIT

Simple GraphQL client

Run unit tests codecov Go Reference

Ps. It's Hasura friendly.

Project updated and moved

This repository has been replaced by new, faster and better go-simple-graphql.

Reasoning

I've tried to run few graphQL clients with hasura, all of them required conversion of the data into the appropriate structures, causing issues with non-existing types ( thanks to Hasura ), for example bigint which was difficult to export. Therefore, I present you the simple client to which you can copy & paste your graphQL query, variables and you are good to go.

Features

  • Executing GraphQL queries as they are, without types declaration
  • Compressing produced queries
  • Support for additional headers
  • Support for gzip compression ( built into Hasura )

Usage example

Setting GraphQL endpoint

You can set the endpoint variable within your code

gql.GraphQLUrl = "http://127.0.0.1:9090/v1/graphql"

or as an environment variable GRAPHQL_ENDPOINT=http://127.0.0.1:9090/v1/graphql

Example reader code

import (
  fmt
  gql "github.com/lukaszraczylo/simple-gql-client"
)

headers := map[string]interface{}{
  "x-hasura-user-id":   37,
  "x-hasura-user-uuid": "bde3262e-b42e-4151-ac10-d43f0bef44a5",
}

variables := map[string]interface{}{
"fileHash": "123deadc0w321",
}
var query = `query searchFileKnown($fileHash: String) {
  tbl_file_scans(where: {file_hash: {_eq: $fileHash}}) {
  	porn
  	racy
  	violence
  	virus
  }
}`
result, err := Query(query, variables, nil)
if err != nil {
  fmt.Println("Query error", err)
  return
}
fmt.Println(result)
`
result := Query(query, variables, headers)
fmt.Println(result)

Result

{"tbl_user_group_admins":[{"id":109,"is_admin":1}]}

Working with results

I'm using an amazing library tidwall/gjson to parse the results and extract information required in further steps and I strongly recommend this approach as the easiest and close to painless.

result = gjson.Get(result, "tbl_user_group_admins.0.is_admin").Bool()
if result {
  fmt.Println("User is an admin")
}