CODEWITHSUNDEEP
javascriptecmascript-6salesforcefetch-apilwc
Oubayda Samrouth
Oubayda Samrouth

Reputation: 25

401 Unauthorized REST API in lightning web component salesforce

I'm trying to execute query using REST API, in a lightning web component.

The request in Postman returning result with success (enabling Follow Authorization header), but in the JavaScript in lightning web component it returns 401 Unauthorized.

The code in the Javascript is a follows:

let sessionId = 'token';
let baseUrl = window.location.origin;
let header = {
    "Content-Type": "application/json",
    "Accept": "application/json",
    "Authorization": "Bearer " + sessionId,
};

if (sessionId) {
    let options = {
        method: "GET",
        mode: 'no-cors',
        redirect: 'follow',
        headers: header,
    };
    fetch(baseUrl + '/services/data/v50.0/query/?q=SELECT+name+from+Account', options).then((response) => {
        console.log(JSON.stringify(response));
        if (!response.ok) {
            // throw Error(JSON.stringify(response));
        } else {
            return response.json();
        }
    }).then((repos) => {
        console.log(repos, repos);
    });
}

Am I missing something?

Upvotes: 1

Views: 1793

Answers (2)

Giorgi Gvimradze
Giorgi Gvimradze

Reputation: 2129

Since you can not pass the value Authorization to no-cors mode, you will need to add CORS configuration in your SalesForce as safe endpoint where they let you make a call.

Upvotes: 1

Eyup Ucmaz
Eyup Ucmaz

Reputation: 1

You can not send Authorization header with "no-cors" mode.

mode: "no-cors"only allows a limited set of headers in the request:

Accept
Accept-Language
Content-Language
Content-Type with a value of application/x-www-form-urlencoded, multipart/form-data, or text/plain

Upvotes: 0

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