Expected Error format when login fails

[bsylvain]

According to documentation, when login fails, the login controller expect to have the message in reason.error :

try {
      await this.session.authenticate('authenticator:devise', identification, password);
    } catch(error) {
      this.errorMessage = error.error || error;
    }

My error payload in the response to an invalid login is just :
{error:"Mail or password incorrect"}

When a login fail, the error message remain empty

My question is : how is it supposed to be formated? Is it an ember side problem or a server side problem ?

[BobrImperator]

Could you share what is the error that you receive in the catch block?
At a glance when looking at devise authenticator, it looks like ESA might be forwarding a not parsed response.

[bsylvain]

[BobrImperator]

It'll be a bit roundabout then for you, but what you're receiving is the raw fetch response.
You should be able to do something like this in your catch block:

.catch((response) => {
   const error = response.json();
   
   this.errorMessage = error.error;
})

[bsylvain]

The value is still undefined.

[BobrImperator]

Hmm... so there's nothing returned when you call json() on the response?
Mind that json() returns a promise and I've made a small mistake there as well:

.catch((response) => response.json())
.catch((response) => {   
   this.errorMessage = response.error;
})

[bsylvain]

I'm trying multiple thing with chained then, but it does not works apparently

[bsylvain]

Ok so the answer was this :

       .catch((response) =>  response.json() )
      .then((response) => {   
        this.set('errorMessage',response.error)
      });

Thanks for your help