Data Returned Null After Calling Function

What am trying to do : am placing a payment-order in the payment gateway's server (using firebase functions). the placeorder() creates the order (this part works) I want the detail

Solution 1:

The first thing I'd do is "promisify" the callback-style entry point for the ippopay api...

constIppopay = require('node-ippopay');
const ippopay_instance = newIppopay({
  public_key: 'public key',
  secret_key: 'secret key',
});


// call ippopay api to createOrder and resolve with the JSON result parsedasyncfunctionplaceorder(params) {
  returnnewPromise((resolve, reject) => {
    ippopay_instance.createOrder(params, (error, data) => {
      if (error) reject(error);
      elseresolve(JSON.parse(data));
    })
  });
}

Now the exported function can be made simple and clear. The key is to await the promise resolution before returning...

exports.order = functions.https.onCall((amnt, context) => {
  const params = { amount: amnt, etc...}
  returnawaitplaceorder(params);
})