Take operation name from document string when QueryOptions.operationName is not specified

[jv-soares]

I think its bad that we have to specify the QueryOptions.operationName even when the operation name is part of the query string:

final document = gql(r'''
query Example() {
  id
}
''');
final options = QueryOptions(document: document);
print(options.operationName) // prints null

Also if the names in QueryOptions.operationName and in the query string don't exactly match the request simply doesn't work and I don't get any exception.

Solution

I've solved this problem on my side by implementing an extension of DocumentNode from gql and using it in QueryOptions

import 'package:gql/ast.dart' as ast;

extension DocumentNodeExtension on ast.DocumentNode {
  String? get operationName {
    final node = definitions.first as ast.OperationDefinitionNode;
    return node.name?.value;
  }
}

final document = gql(r'''
query Example() {
  id
}
''');
final options = QueryOptions(operationName: document.operationName, document: document);
print(options.operationName) // prints 'Example'

I thought maybe the operation name could be extracted like this by default when QueryOptions.operationName is not specified.

Is this reasonable or am I missing something here?