Unable to get access_code with Oauth 2.0

Mehdi

When I use Oauth 2.0 authentication, I can get the 'code' through the Authorization URL, but when I fill in the Access Token URL, I can't assign the 'code' that I got earlier However, when I fill in the Access Token URL, I can't assign the 'code' that I got before to the 'access_token', so I can't get the 'access_token', because the 'code' changes all the time, so I need to assign it to the 'access_token', how can I do that?

This is the access token url format I used, where code should be what you got in the previous step.

https://gw.open.1688.com/openapi/http/1/system.oauth2/getToken/YOUR_APPKEY?grant_type=authorization_code&need_refresh_token=true&client_id= YOUR_APPKEY&client_secret= YOUR_APPSECRET&redirect_uri=YOUR_REDIRECT_URI&code=CODE

ArborRose

Perhaps this would help you:

To obtain the access token using OAuth 2.0, you need to make a POST request to the Access Token URL with the appropriate parameters.

Step-by-Step Guide

1. Get the Authorization Code:
   • Direct the user to the Authorization URL.
   • The user will log in and authorize your app, after which they will be redirected to your redirect URI with a code parameter in the query string.
2. Exchange Authorization Code for Access Token:
   • Use the authorization code obtained in the previous step to request the access token.
   • The code parameter in your Access Token URL should be dynamically replaced with the authorization code.

Example using JavaScript (Client-side)

Here’s how you can dynamically replace the code and make the POST request to obtain the access token.

// Function to get the access token

async function getAccessToken(authCode) {

    const clientId = 'YOUR_APPKEY';

    const clientSecret = 'YOUR_APPSECRET';

    const redirectUri = 'YOUR_REDIRECT_URI';

    const tokenUrl = `https://gw.open.1688.com/openapi/http/1/system.oauth2/getToken/${clientId}`;


    const params = new URLSearchParams();

    params.append('grant_type', 'authorization_code');

    params.append('need_refresh_token', 'true');

    params.append('client_id', clientId);

    params.append('client_secret', clientSecret);

    params.append('redirect_uri', redirectUri);

    params.append('code', authCode);


    try {

        const response = await fetch(tokenUrl, {

            method: 'POST',

            headers: {

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

            },

            body: params.toString()

        });


        if (!response.ok) {

            throw new Error('Failed to fetch access token');

        }


        const data = await response.json();

        console.log('Access Token:', data.access_token);

        return data.access_token;

    } catch (error) {

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

    }

}


// Example usage:

// You need to get the 'code' parameter from the query string or however it's passed to your application

const urlParams = new URLSearchParams(window.location.search);

const authCode = urlParams.get('code');


if (authCode) {

    getAccessToken(authCode);

} else {

    console.error('Authorization code not found in the URL');

}