Get Fields from ObjectType

[rr2-france98]

Hello,

I've a HTTP Database and need to loop over all fields of all ObjectType to instanciate and keep updated my schema on this database.
I've test many things, like create a custom typeGQL parser

export class CustomDecorators {
  _metadata = {
    objects: new Map(),
    fields: [] as any[]
  };

  Authorized = (opts: any) => (protoConstructor: Function) => {};

  ObjectType = (opts: any) => (protoConstructor: Function) => {};

  Field =
    (getType: () => any, opts?: FieldOptions) =>
      (prototype: Function, property: string) => {};
}

And many others, but i'm unable to get fields. Do you have any suggestions ?

Thanks in advance