Movie Magic GraphQL Gateway in Go

The Movie Magic GraphQL Gateway is based on the gqlgen library for building GraphQL servers in Go. It was developed step-by-step starting from gqlgen Getting Started, which builds on top of a simple Todo schema. I later changed the schema to Movies for the final build. See the commit history for code progression. The gateway fetches movie data from Movie Magic Services, which exposes a gRPC endpoint.

Prerequisite

This GraphQL gateway fetches data from Movie Magic Services in Go. Make sure that that server is running before starting this gateway.

Getting started

1. Make sure you have Go installed.
2. In your shell, run go run server.go to start the server.
3. Open GraphiQL at http://localhost:8080
4. Execute the following query:

# ----- query -----
query ListMovies($input: MoviesRequest!) {
  movies(input: $input) {
    movies {
      id
      name
      cast {
        person {
          id
          name
        }
        characters
      }
      certificate
      genres
      rank
      releaseYear
      ratingsSummary {
        aggregateRating
      }
    }
    pageInfo {
      totalPages
      totalItems
      page
      perPage
      hasNextPage
      hasPreviousPage
    }
  }
}

# ----- variables -----
{
  "input": {
    "sort": "SORT_PARAM_RANK_ASC",
    "pageSpec": {
      "page": 1,
      "perPage": 10
    }
  }
}

You should see top 10 movies in the result.

Running gqlgen

go run github.com/99designs/gqlgen generate