Basic authentication with fetch?

javascript fetch-api

You are missing a space between Basic and the encoded username and password.

headers.set('Authorization', 'Basic ' + base64.encode(username + ":" + password));

javascript fetch-api

A solution without dependencies.

Node

headers.set('Authorization', 'Basic ' + Buffer.from(username + ":" + password).toString('base64'));

Browser

headers.set('Authorization', 'Basic ' + btoa(username + ":" + password));

javascript fetch-api

You can also use btoa instead of base64.encode().

headers.set('Authorization', 'Basic ' + btoa(username + ":" + password));

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