500 (Internal Server Error) when I try to refresh token: Authorization code with PKCE extension

angela_parga — Tue, 26 Dec 2023 00:28:22 GMT

Plan

Free

Country
Colombia

Device

HP LAPTOP-O1445JB9

Operating System

(Windows 11)

My Question or Issue:
when the first token expires, I try to use the refresh token to generate a new one without needing to authorize the user again. But I get an error 500 (Internal Server Error) in the function in charge of making the POST request:

async getRefreshToken() {

try {

const response = await fetch(tokenEndpoint, {

method: 'POST',

headers: {

'Content-Type': 'application/x-www-form-urlencoded'

body: new URLSearchParams({

grant_type: 'refresh_token',

refresh_token: this.currentToken.refresh_token,

client_id: clientID

}),

});

if(!response.ok){

throw new Error('Failed to refresh token');

}

const token = await response.json();

this.currentToken.save(token)

return this.currentToken.access_token;

} catch (error){

console.error('Error refreshing token:', error);

this.redirectToauthorize();

}

},
and here I store the token

currentToken: {

get access_token(){

return localStorage.getItem('access_token')

get refresh_token(){

return localStorage.getItem('refresh_token')

get expires_in(){

return localStorage.getItem('expires_in')

get expires(){

const expiryTimeString = localStorage.getItem('expires');

return expiryTimeString ? new Date(parseInt(expiryTimeString)) : null;

save(response){

const { access_token, refresh_token, expires_in } = response;

localStorage.setItem('access_token', access_token);

localStorage.setItem('refresh_token', refresh_token);

localStorage.setItem('expires_in', expires_in);

const now = new Date();

const expiry = now.getTime() + (expires_in * 1000);

localStorage.setItem('expires', expiry);

}

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500 (Internal Server Error) when I try to refresh token: Authorization code with PKCE extension