Comment-or-update-comment about ideas HOT 7 OPEN

Would love this — my initial idea (not knowing about metadata) was to append a <!-- probot comment[<id>] --> marker to the comment, then (on update) paginate comments until a comment with that marker (including id) was found

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Either way I think @grrowl you can start creating the plugin, we will figure out how to get it into probot later :)

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I’m not yet sure how you’d load the plugin in Probot though? @JasonEtco is robot.github set so it could be done in the Probot app’s entry point function?

That's a good point. We'd need to load the plugin in the handler itself I guess? We don't currently expose the GitHub client until its created in robot.auth (as part of robot.on). An interesting conversation though, as Octokit plugins become more mature we'll definitely want to help folks out in that area.

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maybe probot/friction would be a better place to discuss this?

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@grrowl sounds like a good plan to me :)

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@grrowl that'd likely be the right implementation - I think the challenge is around designing a good looking API. I don't think it should be part of Probot, but would make a nice third-party lib (or even an Octokit plugin, what do you think @gr2m?)

Something like:

context.github.createOrUpdateComment({
  owner, repo, issue,
  body: '...', // First body, when comment is created
  transform: oldComment => oldComment + 'New content', // Transform the original comment if it needs to update
  marker: 'probot:APP_ID' // resolve to <!-- probot:APP_ID -->
})

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sounds like a great plan to me :) @octokit/rest plugins API is still work-in-progress but they already work. See https://github.com/octokit/rest.js/tree/master/lib/plugins for some info and reference plugin implementation. You could create a repository/npm package for the plugin and then load it like this

octokit.plugin(require('octokit-plugin-create-or-update-comment'))

I’m not yet sure how you’d load the plugin in Probot though? @JasonEtco is robot.github set so it could be done in the Probot app’s entry point function?

GitHub

octokit/rest.js

rest.js - GitHub REST API client for Node.js

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