403 error while calling Query from React

Parse Server 📡
#1

Called this function from React , server is running at the backend

  let user = await new Parse.Query('User')
    .equalTo("username", phone)
    .find()

Received this error
image

How Do I resolve this?

#2

Can you share how you are initializing the Parse SDK and double check if your have set the right keys?

#3

My first guess would be that you’re not supplying your AppId. If you’re using the REST api, you need to pass the appId along with your request, using the Parse-Application-Id header.