Tumblr refreshToken required issue with OAuth 2.0

I am facing a refresh token issue with Tumblr OAuth 2.0. I am able to connect with my app, and everything works fine, but only once. The first time I reconnect using OAuth 2.0, it works, but the next time it doesn’t and throws a “refreshToken is required” error.

Their OAuth 1.0 also seems broken, as I’m unable to get it working at all. Is this a known issue, or is there any solution for it?

n8n version: 2.15.0

Have you tried using a HTTP request node?

I followed this guide: http://community.n8n.io/t/oauth1-api-error-401-tumblr-api/178372/3

This time, I changed the scope from write to write offline_access. I hope this resolves the refreshToken issue. I will update soon

UPDATE: Yup, that’s the solution for expired tokens.