Creating a schema with dgo and reporting an error

Users GraphQL
1

I ran a case from the official document and created a schema using dgo, but the result was an error

conn, err := grpc.Dial("192.168.1.252:9080", grpc.WithTransportCredentials(insecure.NewCredentials()))
	if err != nil {
		fmt.Println(err.Error())
		return
	}
	defer func() {
		_ = conn.Close()
	}()
	dgraphClient := dgo.NewDgraphClient(api.NewDgraphClient(conn))
	dqlTxt := `type Product {
    productID: ID!
    name: String @search(by: [term])
    reviews: [Review] @hasInverse(field: about)
}

type Customer {
    username: String! @id @search(by: [hash, regexp])
    reviews: [Review] @hasInverse(field: by)
}

type Review {
    id: ID!
    about: Product!
    by: Customer!
    comment: String @search(by: [fulltext])
    rating: Int @search
}`
	op := api.Operation{
		Schema:          dqlTxt,
		RunInBackground: true,
	}
	err1 := dgraphClient.Alter(context.Background(), &op)
	if err1 != nil {
		fmt.Println(err1.Error())
	}
}

The error content is

rpc error: code = Unknown desc = line 3 column 17: Expected new line after field declaration. Got @
2

You are sending a GraphQL schema. Dgo isn’t a GraphQL Client. You should send it to /admin/schema via Postman or another GraphQL UI or even some lib that is a GraphQL client in Go.