fix: make 'name' property optional in IDataSource interface

feat: update GraphQLComponent class to implement IGraphQLComponent with generic context type

chore: add backward compatibility for GraphQLComponent using CommonJS module exports

Author: meliu

dist/index.d.ts

@@ -12,7 +12,7 @@ export interface ComponentContext extends Record<string, unknown> {
 }
 export type ContextFunction = ((context: Record<string, unknown>) => any);
 export interface IDataSource {
-    name: string;
+    name?: string;
     [key: string | symbol]: any;
 }
 /**
@@ -86,7 +86,7 @@ export interface IGraphQLComponent<TContextType extends ComponentContext = Compo
  * @template TContextType - The type of the context object
  * @implements {IGraphQLComponent}
  */
-export default class GraphQLComponent<TContextType extends ComponentContext = ComponentContext> implements IGraphQLComponent {
+export default class GraphQLComponent<TContextType extends ComponentContext = ComponentContext> implements IGraphQLComponent<TContextType> {
     _schema: GraphQLSchema;
     _types: TypeSource;
     _resolvers: IResolvers<any, TContextType>;