GitHub ERROR probot: Integration not found, documentation_url

Question

I had issues with authentication when working with GitHub's Probot app. When I ran the app using npm start, I would get

github: Github request: GET /app/installations - 404 Not Found

and

ERROR probot: {"message":"Integration not found", "documentation_url": "https://developer.github.com/v3"}

I later found that the reason I was getting this issue was because I was working from a GitHub Enterprise account and needed to add an extra variable to my .env file:

GHE_HOST=github.your_company.com

After restarting my app, I no longer had those issues.

Rik

What exactly is your question? – Jot

Sorry for the confusion! I had previously not known how to solve this issue by using the GHE_HOST variable, but I was able to find the answer and fix it myself. Since it took me so long to find the solution, a colleague suggested I open up a Q&A here so as to help others who may come across the same issue. No further questions at this point! – Rik

It might be worth adding the solution as a separate answer anyway. I came here via Google, skim read your issue and was disappointed to see there were no answers, so I almost closed the tab. ;) Anyway, thanks for posting your solution! – Waiwaif

@Rik is it possible to deploy without GHE_HOST ? Please advise. I am going through similiar problem. msg: request to github.com/api/v3/app/installations?per_page=100 failed, reason: connect ECONNREFUSED ipaddress:443` Any thoughts or suggestions? – Distichous

Just want to add more information about the issue. Integration refers to your app. Double-check whether your app id is correct. Decode your JWT token and check if the iss matches your app id. And lastly, check your request, are you sending requests to the correct Github tenant (API url). – Expressway