Using TypeScript with Firebase Functions - Anticipated a minimum of one argument, yet received zero or more as input

Question

Using TypeScript with Firebase Functions - Anticipated a minimum of one argument, yet received zero or more as input

Previously, I successfully used Firebase Functions with JavaScript. However, after translating my code to TypeScript, I encountered an issue while trying to update my functions. The error message I received is as follows:

Expected at least 1 argument, but received 0 or more.

The problematic block of code is shown below:

size = array.size;
if (size === 0) {
  return;
} else {
  array.forEach((doc: any) => {
    docRefCarsDetails.push(db.collection('cars').doc(doc.get('licensePlate')));
  })

  return Promise.resolve(db.runTransaction(transaction => {
    return Promise.resolve(transaction.getAll(...docRefCarsDetails)); 
  }))
}

I even attempted to check the size to prevent this error from occurring. Your assistance is greatly appreciated!

typescript firebase google-cloud-functions

Answer 1

Answer №1

Modify

return;

Into

return null;

REVISION

Alternatively, attempt

db.runTransaction(transaction  => {
  return  transaction.getAll(...docRefCarsDetails); 
})

Answer 2

Modify

return;

Into

return null;

REVISION

Alternatively, attempt

db.runTransaction(transaction  => {
  return  transaction.getAll(...docRefCarsDetails); 
})

Answer 3

Answer №2

This comment provided the exact solution I needed, and it's working perfectly.

const corsHandler = cors({ origin: true }); // the key to resolving the issue

import cors from "cors";
const corsHandler = cors({ origin: true }); // the essential fix

// ensure cors is allowed in the http function
export const myFunction = functions.https.onRequest((req, res) => {
corsHandler(req, res, async () => {

// your method implementation

 });
});

Answer 4

This comment provided the exact solution I needed, and it's working perfectly.

const corsHandler = cors({ origin: true }); // the key to resolving the issue

import cors from "cors";
const corsHandler = cors({ origin: true }); // the essential fix

// ensure cors is allowed in the http function
export const myFunction = functions.https.onRequest((req, res) => {
corsHandler(req, res, async () => {

// your method implementation

 });
});

Using TypeScript with Firebase Functions - Anticipated a minimum of one argument, yet received zero or more as input

Answer №1

Answer №2

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