GraphQL Playground Handler Function with Playground Settings in Golang

What this?

This is a go binding of Prisma’s GraphQL PlayGround with setting configuration
support.

Why I made this?

I like using GraphQL, especially, GQLGen is awesome.
However, the playground provided by GQLGen has some small-issues. i.e. I cam’t
set configuration to handle CSRF. So, I decided to re-invent the wheel that can
set the configuration.

How to use?

package main
import "log"
import (
  "github.com/hiroaki-yamamoto/gqlplay"
  "github.com/go-chi/chi"
)
func main() {
  player := gqlplay.Ground(gqlplay.Option{
    Settings: goplay.Settings{
      PollingEnabled: false,
      Credentials: SameOriginCredentials,
      HideTraceResponse: true,
    },
    Headers: map[string]string{
      "X-CSRF-TOKEN": "blablablabla...",
    }
  })
  r := chi.NewRouter()
  //...Other code...
  r.Get("/playground", player)
  svr := http.Server{
        Addr:    fmt.Sprintf("%s:%d", setting.Host, setting.Port),
        Handler: chi.ServerBaseContext(ctx, r),
  }
  log.Fatal(svr.ListenAndServe())
}

It must be easy.

Contribution

Sending Issues / PR is welcome. PR is more appreciated. However, if you changed
the behavior, the corresponding changes, additions, and/or deletions of
the test code is mandatory, if you changed only the doc, the test
code is not needed.