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How to check if the username or the email already exists

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plushteddyOriginal post

Rank 2: Process

Hello, how can I check if the Email or the username already exists and give seperate error messages?

Binyamin

Hi
A. As of now username is not available for Appwrite users.
B. You'll need to wrap it with a try/catch block, capture the error by yourself if so for the create method, then if you get an error 409 it means the user already exist and you can show a custom error message for the user.

plushteddy

Rank 2: Process

sorry i mean name not username

Binyamin

Name is not unique and two users can have the same name

plushteddy

Rank 2: Process

my problem is just that if i do a try catch it just says that one of them already exists but i dont know which of them

Binyamin

That's good

plushteddy

Rank 2: Process

but i want it to be unique (app side)

plushteddy

Rank 2: Process

Dart
try {
                  await account().create(
                    userId: ID.unique(),
                    email: email,
                    password: password,
                    name: _usernameController.text,
                  );
                } catch (error) {
                  final appwriteError = error as AppwriteException;


                  throw Exception(appwriteError.message);
                }```
Binyamin

What you mean one of them, you're creating many in a loop?

plushteddy

Rank 2: Process

theres an input for email and for username (name)

if the name already exists it says this:
Error: Exception: A user with the same id, email, or phone already exists in this project.
if the email already exists it says this:
Error: Exception: A user with the same id, email, or phone already exists in this project.

Binyamin

For this, the best would be to create a function that will run (trigger) after each user change
You'll need to create another Collection with the current user name

So the flow can be like so

  1. When the user is setting his name for the first time, you then, insert that value into the usernames collection.
  2. When the user is updating his name, the function checks if that username is taken, if so it will change it to the old one back
plushteddy

Rank 2: Process

ah

Binyamin

The name is not unique
So this error can mean only:

  • ID exist
  • Email exist
  • Phone exist

As you don't use the phone you can eliminate the one,
For ID to exist is pretty rare, so it means the email exist

plushteddy

Rank 2: Process

I probably try it tomorrow, so i'l probably ask something then

but thanks for your support

Binyamin

:appwritefire:

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