Removing a field from a collection using firebase-admin: Tips and tricks

Question

Removing a field from a collection using firebase-admin: Tips and tricks

I currently have a collection stored in Firebase Realtime Database structured like this:

My requirement is to remove the first element (the one ending with Wt6J) from the database using firebase-admin.

Below is the code snippet I tried, but it didn't work as expected:

const deleteNotification = () => {
  const key1 = 'FhN6Ntw8gyPLwJYVzcHy0E8Wq5z2';
  const key2 = '-MzGhZ2psGLivIfTWt6J';
  const notsRef = db.ref(`notifications/${key1}/${key2}`);
  notsRef.remove();
};

Can anyone suggest the correct method to use for deleting a specific field? Any insights on how I can achieve this task?

javascript typescript firebase firebase-realtime-database

Answer 1

Answer №1

In this scenario, using await within a try catch block would be my recommended approach. The await keyword initiates a new thread and waits for it to finish before continuing execution. As mentioned by others previously, it's possible that your cloud function is being terminated before the removal process completes.

const removeNotification = async () => {
  try{
    const key1 = 'Ajd903lCnZkq28FhP0YdsMwQ92s';
    const key2 = '-Kj4TzH7gEplL42mNt8R';
    const notifRef = db.ref(`notifications/${key1}/${key2}`);
    await notifRef.remove();
  } catch( error ) {
    console.log( 'Failed to delete record.' );
    console.log( error );
  }
  console.log( 'Record deletion successful.' );
};

Answer 2

In this scenario, using await within a try catch block would be my recommended approach. The await keyword initiates a new thread and waits for it to finish before continuing execution. As mentioned by others previously, it's possible that your cloud function is being terminated before the removal process completes.

const removeNotification = async () => {
  try{
    const key1 = 'Ajd903lCnZkq28FhP0YdsMwQ92s';
    const key2 = '-Kj4TzH7gEplL42mNt8R';
    const notifRef = db.ref(`notifications/${key1}/${key2}`);
    await notifRef.remove();
  } catch( error ) {
    console.log( 'Failed to delete record.' );
    console.log( error );
  }
  console.log( 'Record deletion successful.' );
};

Removing a field from a collection using firebase-admin: Tips and tricks

Answer №1

Similar questions

Deploying Firebase functions based on specific conditions with parameterized configuration

Can Vue.js support two-way data-binding without the use of an input element?

Error code -8 occurred while executing the yarn dev command, unable to identify the issue

jquery unbinding events can lead to faster performance

Tips for speeding up the process of sending emails with nodemailer and firebase

using document references in puppeteer's evaluate/waitFor function

The error message "Cannot read property '$scope' of undefined" indicates that there is an issue

What could be causing the browser to only partially display an image?

How can I choose multiple criteria by utilizing the indexOf('EXAMPLE.com') method? Is there a way to add additional examples for selection?

React: maintaining referential equality across renders by creating closures with useCallback

What are the best practices for setting access permissions when using Azure AD authorization flow?

What is the best way to halt the ticking of this clock in JavaScript?

JS - What is causing my JavaScript src to not work properly?

Exploring the Power of Vue 3 in Manipulating the DOM

Remove user from firebase with Admin SDK

Tips for preventing the overwriting of a JSON object in a React application

Is there a way I can ensure the values are loaded when the page loads, rather than displaying NaN?

What is the best way to prevent double clicks when using an external onClick function and an internal Link simultaneously

Exploring ways to access an element's background color through JavaScript

Problem encountered during NextJS build: ReferenceError - 'window' is undefined