How do i iterate through data stored in firebase database using thunkable

[yasarbains7mhf9pj]

This my firebase database, now I want to iterate over each object inside the chat object, and I only want to check with the immediate child of chat that whether a particular email address is present or not. Please help me out with this.
Thank you.

[tatiang]

Here’s how to do this:

Project link: Thunkable
(See first screen with your username)

[yasarbains7mhf9pj]

"chat": {
  "yasarbains03@gmail^com": {
    "chatList": [
      {
        "author": "Sender",
        "message": "Sample text message"
      },
      {
        "author": "Sender",
        "message": "Hey"
      },
      {
        "author": "Sender",
        "message": "Hi"
      }
    ]
  },
  "yasarbains15@gmail^comyasarbains7@gmail^com": {
    "chatList": [
      {
        "author": "Sender",
        "message": "Sample text message"
      },
      {
        "author": "Sender",
        "message": "Hi"
      },
      {
        "author": "Sender",
        "message": "Hey"
      }
    ]
  },
  "yasarbains7@gmail^com": {
    "chatList": [
      {
        "author": "Sender",
        "message": "Sample text message"
      },
      {
        "author": "Receiver",
        "message": "Hi"
      },
      {
        "author": "Sender",
        "message": "Hiii"
      },
      {
        "author": "Sender",
        "message": "Hello"
      },
      {
        "author": "Sender",
        "message": "hi"
      },
      {
        "author": "Sender",
        "message": "Hi"
      },
      {
        "author": "Sender",
        "message": "heyyy"
      },
      {
        "author": "Sender",
        "message": "Hii"
      }
    ]
  },
  "yasarbains7@gmail^comyasarbains15@gmail^com": {
    "chatList": [
      {
        "author": "Receiver",
        "message": "Hey"
      }
    ]
  }
}

The chat object is of above form, and in this I want to search for, for example - yasarbains15@gmail^com, such that this email comes in a combination with some other email and this email is present first then the second email, like, “yasarbains15@gmail^comyasarbains7@gmail^com”.This can be done if I only read the email addresses and not the chatList inside email address. Is there any way to do that?

[tatiang]

Try it… you can change the search term to whatever you like in my demo project.

Why do you have two email addresses joined together as a single property name?

[yasarbains7mhf9pj]

Okay, let me check.
I am creating a chatting option in my app for customers and service providers, and in-order to store there chats, and fetch them for later display I am using two email addresses as unique key, so the chats will be stored as sender’s email + receiver’s email.

[yasarbains7mhf9pj]

When I using my script in sampleJSON, and trying to print the child of chat object, I am getting null. Is there any way to read this form of JSON script?

[ioannis]

Hello @yasarbains7mhf9pj
You are getting null because the “samepleJSON” variable doesn’t contain a JSON. A valid JSON should be inside these { }.