I was receiving a 401 error when using a refresh token to acquire a new access token in a Node.js app, despite following the example code in the docs: Use Refresh Tokens Turns out, one needs to serialize the request’s data object. Eg: const axios = require("axios") const params = new URLSearchPara…

Use Refresh Tokens in Node.js (and axios): Receiving 401 error (access_denied, Unauthorized)

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