Convert cognitoUser.authenticateUser callback to observable












2















I'm building an angular app using AWS Cognito Javascript SDK for authentication.



I have a service on which I have a login method:



login(username: string, password: string): void {
const authData = {
Username: username,
Password: password
};
const authDetails = new AuthenticationDetails(authData);
const userData = {
Username: username,
Pool: userPool
};
this.cognitoUser = new CognitoUser(userData);
const self = this;
this.cognitoUser.authenticateUser(authDetails, {
onSuccess: self.onSuccess.bind(self),
onFailure: self.onFailure.bind(self),
newPasswordRequired: function(userAttributes, requiredAttributes) {
self.newPasswordRequired.next(true);
self.authIsLoading.next(false);
}
});
}


Now, instead of using callbacks directly on the service, I would like to return an observable from login method, to which I may subscribe and get the result of authentication: success, failure or new password required.



I took a look the Observable bindCallback and bindNodeCallback methods and also on this other question, but couldn't figure out how to do this.



How may this be achieved?










share|improve this question



























    2















    I'm building an angular app using AWS Cognito Javascript SDK for authentication.



    I have a service on which I have a login method:



    login(username: string, password: string): void {
    const authData = {
    Username: username,
    Password: password
    };
    const authDetails = new AuthenticationDetails(authData);
    const userData = {
    Username: username,
    Pool: userPool
    };
    this.cognitoUser = new CognitoUser(userData);
    const self = this;
    this.cognitoUser.authenticateUser(authDetails, {
    onSuccess: self.onSuccess.bind(self),
    onFailure: self.onFailure.bind(self),
    newPasswordRequired: function(userAttributes, requiredAttributes) {
    self.newPasswordRequired.next(true);
    self.authIsLoading.next(false);
    }
    });
    }


    Now, instead of using callbacks directly on the service, I would like to return an observable from login method, to which I may subscribe and get the result of authentication: success, failure or new password required.



    I took a look the Observable bindCallback and bindNodeCallback methods and also on this other question, but couldn't figure out how to do this.



    How may this be achieved?










    share|improve this question

























      2












      2








      2








      I'm building an angular app using AWS Cognito Javascript SDK for authentication.



      I have a service on which I have a login method:



      login(username: string, password: string): void {
      const authData = {
      Username: username,
      Password: password
      };
      const authDetails = new AuthenticationDetails(authData);
      const userData = {
      Username: username,
      Pool: userPool
      };
      this.cognitoUser = new CognitoUser(userData);
      const self = this;
      this.cognitoUser.authenticateUser(authDetails, {
      onSuccess: self.onSuccess.bind(self),
      onFailure: self.onFailure.bind(self),
      newPasswordRequired: function(userAttributes, requiredAttributes) {
      self.newPasswordRequired.next(true);
      self.authIsLoading.next(false);
      }
      });
      }


      Now, instead of using callbacks directly on the service, I would like to return an observable from login method, to which I may subscribe and get the result of authentication: success, failure or new password required.



      I took a look the Observable bindCallback and bindNodeCallback methods and also on this other question, but couldn't figure out how to do this.



      How may this be achieved?










      share|improve this question














      I'm building an angular app using AWS Cognito Javascript SDK for authentication.



      I have a service on which I have a login method:



      login(username: string, password: string): void {
      const authData = {
      Username: username,
      Password: password
      };
      const authDetails = new AuthenticationDetails(authData);
      const userData = {
      Username: username,
      Pool: userPool
      };
      this.cognitoUser = new CognitoUser(userData);
      const self = this;
      this.cognitoUser.authenticateUser(authDetails, {
      onSuccess: self.onSuccess.bind(self),
      onFailure: self.onFailure.bind(self),
      newPasswordRequired: function(userAttributes, requiredAttributes) {
      self.newPasswordRequired.next(true);
      self.authIsLoading.next(false);
      }
      });
      }


      Now, instead of using callbacks directly on the service, I would like to return an observable from login method, to which I may subscribe and get the result of authentication: success, failure or new password required.



      I took a look the Observable bindCallback and bindNodeCallback methods and also on this other question, but couldn't figure out how to do this.



      How may this be achieved?







      javascript angular rxjs amazon-cognito






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 24 '18 at 21:28









      GCSDCGCSDC

      545516




      545516
























          1 Answer
          1






          active

          oldest

          votes


















          4














          you can return new Observable and fire the observers with next() and error():





          login(username: string, password: string): Observable<{ type: string, result: any }>{
          const authData = {
          Username: username,
          Password: password
          };
          const authDetails = new AuthenticationDetails(authData);
          const userData = {
          Username: username,
          Pool: userPool
          };
          this.cognitoUser = new CognitoUser(userData);
          return new Observable<{ type: string, result: any}>(obs => {
          this.cognitoUser.authenticateUser(authDetails, {
          onSuccess: (result: any) => {
          obs.next({ type: 'success', result: result });
          obs.complete();
          },
          onFailure: (error: any) => obs.error(error),
          newPasswordRequired: (userAttributes, requiredAttributes) => {
          obs.next({ type: 'newPasswordRequired', result: [userAttributes, requiredAttributes] });
          obs.complete();
          }
          });
          });
          }





          share|improve this answer


























          • Thanks @A.Winnen, worked like a charm!

            – GCSDC
            Nov 24 '18 at 22:19











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          4














          you can return new Observable and fire the observers with next() and error():





          login(username: string, password: string): Observable<{ type: string, result: any }>{
          const authData = {
          Username: username,
          Password: password
          };
          const authDetails = new AuthenticationDetails(authData);
          const userData = {
          Username: username,
          Pool: userPool
          };
          this.cognitoUser = new CognitoUser(userData);
          return new Observable<{ type: string, result: any}>(obs => {
          this.cognitoUser.authenticateUser(authDetails, {
          onSuccess: (result: any) => {
          obs.next({ type: 'success', result: result });
          obs.complete();
          },
          onFailure: (error: any) => obs.error(error),
          newPasswordRequired: (userAttributes, requiredAttributes) => {
          obs.next({ type: 'newPasswordRequired', result: [userAttributes, requiredAttributes] });
          obs.complete();
          }
          });
          });
          }





          share|improve this answer


























          • Thanks @A.Winnen, worked like a charm!

            – GCSDC
            Nov 24 '18 at 22:19
















          4














          you can return new Observable and fire the observers with next() and error():





          login(username: string, password: string): Observable<{ type: string, result: any }>{
          const authData = {
          Username: username,
          Password: password
          };
          const authDetails = new AuthenticationDetails(authData);
          const userData = {
          Username: username,
          Pool: userPool
          };
          this.cognitoUser = new CognitoUser(userData);
          return new Observable<{ type: string, result: any}>(obs => {
          this.cognitoUser.authenticateUser(authDetails, {
          onSuccess: (result: any) => {
          obs.next({ type: 'success', result: result });
          obs.complete();
          },
          onFailure: (error: any) => obs.error(error),
          newPasswordRequired: (userAttributes, requiredAttributes) => {
          obs.next({ type: 'newPasswordRequired', result: [userAttributes, requiredAttributes] });
          obs.complete();
          }
          });
          });
          }





          share|improve this answer


























          • Thanks @A.Winnen, worked like a charm!

            – GCSDC
            Nov 24 '18 at 22:19














          4












          4








          4







          you can return new Observable and fire the observers with next() and error():





          login(username: string, password: string): Observable<{ type: string, result: any }>{
          const authData = {
          Username: username,
          Password: password
          };
          const authDetails = new AuthenticationDetails(authData);
          const userData = {
          Username: username,
          Pool: userPool
          };
          this.cognitoUser = new CognitoUser(userData);
          return new Observable<{ type: string, result: any}>(obs => {
          this.cognitoUser.authenticateUser(authDetails, {
          onSuccess: (result: any) => {
          obs.next({ type: 'success', result: result });
          obs.complete();
          },
          onFailure: (error: any) => obs.error(error),
          newPasswordRequired: (userAttributes, requiredAttributes) => {
          obs.next({ type: 'newPasswordRequired', result: [userAttributes, requiredAttributes] });
          obs.complete();
          }
          });
          });
          }





          share|improve this answer















          you can return new Observable and fire the observers with next() and error():





          login(username: string, password: string): Observable<{ type: string, result: any }>{
          const authData = {
          Username: username,
          Password: password
          };
          const authDetails = new AuthenticationDetails(authData);
          const userData = {
          Username: username,
          Pool: userPool
          };
          this.cognitoUser = new CognitoUser(userData);
          return new Observable<{ type: string, result: any}>(obs => {
          this.cognitoUser.authenticateUser(authDetails, {
          onSuccess: (result: any) => {
          obs.next({ type: 'success', result: result });
          obs.complete();
          },
          onFailure: (error: any) => obs.error(error),
          newPasswordRequired: (userAttributes, requiredAttributes) => {
          obs.next({ type: 'newPasswordRequired', result: [userAttributes, requiredAttributes] });
          obs.complete();
          }
          });
          });
          }






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 24 '18 at 22:25









          GCSDC

          545516




          545516










          answered Nov 24 '18 at 22:01









          A.WinnenA.Winnen

          857119




          857119













          • Thanks @A.Winnen, worked like a charm!

            – GCSDC
            Nov 24 '18 at 22:19



















          • Thanks @A.Winnen, worked like a charm!

            – GCSDC
            Nov 24 '18 at 22:19

















          Thanks @A.Winnen, worked like a charm!

          – GCSDC
          Nov 24 '18 at 22:19





          Thanks @A.Winnen, worked like a charm!

          – GCSDC
          Nov 24 '18 at 22:19




















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