Unable to grasp the mistake

My code contains a function:

buy() {
   return new Promise((resolve, reject) => {
     this.http.request('http://192.168.1.131:8888/generatetoken.php')
    .subscribe(res => { 
      resolve(res.text());    
    });
   }).then((key) => {
     braintree.dropin.create({
      authorization: key,
      container: '#dropin-container'
    }, (createErr, instance) => {
      if (createErr) {
        // An error in the create call is likely due to
        // incorrect configuration values or network issues.
        // An appropriate error will be shown in the UI.
        console.error(createErr + "      createErrrrrrrrrrrrrrrrrr");
        return;
      }

        instance.requestPaymentMethod((requestPaymentMethodErr, payload) => {
          if (requestPaymentMethodErr) {
            // No payment method is available.
            // An appropriate error will be shown in the UI.
            console.error(requestPaymentMethodErr + "      reqqe");
            return;
          }

          // Submit payload.nonce to your server
        });

    });
   }).catch(error => console.log(error + "    eoe"));



 }

Upon execution, it returns:

console.error: ERROR [object Object]

I'm struggling to figure out where I should catch this error. Currently, I have my error handling after the then(), but I can't identify any other potential catch points. Any guidance on this issue would be greatly appreciated. Thanks.

Answer №1

The potential error in this code is specifically tied to the initial http request.

To ensure proper handling of errors, it is critical to include a mechanism to invoke the reject function when an issue arises during the request. In the context of observables, you could consider implementing the following approach:

this.http.request('http://192.168.1.131:8888/generatetoken.php')
    .subscribe(
        response => { resolve(response.text()); },
        error => { reject(error); }
    );

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