#100DaysOfWeb in Python Transcripts
Chapter: Days 77-80: Twitter and Slack bots
Lecture: Testing out the slash command with ngrok
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0:00
First I need to run my Flask app. And as per the Flask documentation site the way to do that is flask app=book.py flask run
0:20
But let's make sure we run it in debug mode to catch potential errors.
0:37
And now debug mode is on. Now, I cannot hit this local URL from the internet. So let's use Ngrok to expose this to the internet. Let's go to ngrok.com
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and download this utility.
1:14
And let's run it and the only thing we need is HTTP and we need to match the port of the Flask app which is 5000.
1:28
And here we see our temporarily internet address that's mapped to our localhost 5000 which is our Flask app.
1:41
And this is probably good news, it's not a 404. This is saying, doing a GET where we only setup a POST for that reld. So let's try directly from Slack.
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First I need to go back to my slash command and setup the new endpoint. And I can go to Slack and see if it works.
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That's good. Wow, look at that. Here is my app. Here is my message. Here is my link which links to the URL we specified
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in the attachments. So I can click here and it indeed goes to the page of the book. The author formatted in italics pages and the picture of the book
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which makes it really look nice. And that's all there is to it. So of course when we stop this server it's not going to work any more.
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At this point you would deploy it to a server. And again change this slash command to point to that server and have it running permanently.
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Run it again, we should get another book. Great. This is a really great book by the way. All right I hope you enjoyed this, and again
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this was all the code to get a slash command running. It's pretty amazing. All right this wraps up the videos for today and tomorrow you're going to
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build your own Slack tool. Right see you then.