Observable.bindcallback exhibits a signature mismatch

I am currently working on an Ionic 2 application and there is a specific instance where I need to call the method AccountKit.login(type, params, callbackFn). I want to create an Observable return as per the guidelines mentioned in the documentation. Here's what I have tried:

let obs = Observable.bindCallback(AccountKit.login); // this line runs without any issues!
  return obs(type, params)                           // <---- error: signature mismatch
      .map(response => this.loginCallback(response));

It appears that there may be a typescript related problem here and so far I haven't been able to find a practical solution for it.

typescriptionic2rxjs

Answer №1

Consider trying the bindCallback method:

let obs = Observable.bindCallback<YourTypeOfType, YourTypeOfParams, YourTypeOfResponse>(AccountKit.login);

Make sure to substitute YourTypeOfType with the appropriate type (possibly string?) and do the same for TypeOfParams and TypeOfResponse

For a quick test, you can also use any for all three:

let obs = Observable.bindCallback<any, any, any>(AccountKit.login);

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