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

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

// (...)

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

headers := map[string]interface{}{
  "x-hasura-user-id":   37,
  "x-hasura-user-uuid": "bde3262e-b42e-4151-ac10-d43fb38f44a5",
}
variables := map[string]interface{}{
  "UserID":  37,
  "GroupID": 11007,
}
var query = `query checkifUserIsAdmin($UserID: bigint, $GroupID: bigint) {
  tbl_user_group_admins(where: {is_admin: {_eq: "1"}, user_id: {_eq: $UserID}, group_id: {_eq: $GroupID}}) {
    id
    is_admin
  }
}`
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")
}