Hey <@498057949541826571> can i show the error mes...
# support-questions-legacys
showtim33
01/27/2023, 7:40 PMHey @rp_st can i show the error message on the frontend itself for some given input values from the pre,postApiHook or handleEvent hook(don't want to make a login call for some specific inputs)
r
rp_st
01/28/2023, 5:01 AMHey. Yes you can.
rp_st
01/28/2023, 5:01 AMYou can simply override the sign in function on the frontend
s
showtim33
01/29/2023, 3:49 PMI want to show the Supertokens style error box, like this
showtim33
01/29/2023, 3:52 PMgetAuthorisationURLFromBackend(input) {
console.log('getAuthorisationURLFromBackend');
console.log(input);
if(some_condition) {
return new Promise((res, rej) => {
rej(new Error('Some custom error message'));
});
}
return originalImplementation.getAuthorisationURLFromBackend(input);
},
showtim33
01/29/2023, 3:52 PMthis doesn't seem to work?
showtim33
01/29/2023, 4:33 PM@rp_st
r
rp_st
01/29/2023, 9:56 PMYou need to throw a supertokens general error instead of a regular error. Checkout our frontend SDK code to find this error please.
s
showtim33
01/30/2023, 6:36 AM@rp_st i am using the ThirdPartyPasswordless recipe, can you link me to the frontend SDK for it? @rp_st
r
rp_st
01/30/2023, 6:40 AMwhen u throw the error that you showed above, what happens?
s
showtim33
01/30/2023, 6:42 AM"I get the Something went wrong. Please try again"
showtim33
01/30/2023, 6:42 AMinstead i want the error message on the UI to be "something custom goes here"
showtim33
01/30/2023, 6:42 AM@rp_st
r
rp_st
01/30/2023, 6:49 AMi see. Yea. So throwing a general error will solve this problem. You can do that by:
Copy code
let err = new Error("custom message")
err.isSuperTokensGeneralError = true;
reject(err)