graphql

GraphQL-GenerateSchemav2.go

// GenerateSchema will create a GraphQL Schema and set the Resolvers found in the GopherService
// For all the needed fields
func GenerateSchema(gs *gopher.GopherService) (*graphql.Schema, error) {
	gopherType := generateGopherType(gs)
	// RootQuery
	fields := graphql.Fields{
		// We define the Gophers query
		"gophers": &graphql.Field{
			// It will return a list of GopherTypes, a List is an Slice
			Type: graphql.NewList(gopherType),
			// We change the Resolver to use the gopherRepo instead, allowing us to access all Gophers
			Resolve: gs.ResolveGophers,
			// Description explains the field
			Description: "Query all Gophers",
		},
	}
	rootQuery := graphql.ObjectConfig{Name: "RootQuery", Fields: fields}
	// build RootMutation 
	rootMutation := generateRootMutation(gs)

	// Now combine all Objects into a Schema Configuration
	schemaConfig := graphql.SchemaConfig{
		// Query is the root object query schema
		Query: graphql.NewObject(rootQuery),
		// Appliy the Mutation to the schema
		Mutation: rootMutation,
	}
	// Create a new GraphQL Schema
	schema, err := graphql.NewSchema(schemaConfig)
	if err != nil {
		return nil, err
	}
	return &schema, nil
}