OAuth in Node.js CLI Apps

OAuth in Node.js CLI Apps

In this article, I'll describe how you can use Express and open to get an OAuth token for a CLI app.

I recently wrote about building a CLI app in Node.js, which showed how to build a CLI app that sent Slack messages from Node.js. But it omitted a key detail: how to get a Slack OAuth token. And that's a big omission, because getting auth credentials right is typically the hardest part of working with any API. In this article, I'll describe how you can use Express and open to get an OAuth token for a CLI app.

In the previous tutorial, I explained how to add a login command to your Slack CLI that you could run using node ./index.js login, or as slack-cli login after bundling for npm. Below is how you can implement this command using yargs:

node oauth nodejs

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