Send telegram notification when new article submitted

[faissaloux]

resolves #751

[joedixon]

This is great @faissaloux. Just a couple of suggestions to keep it more in line with the rest of the project.

Could you also perhaps write some istuctions on what is needed from a deployment perspective to get it running? e.g. how do we get the channel id, how do we get the bot token etc.

Thanks for jumping on this so quickly!

[faissaloux]

Instructions:

• Talk to @BotFather and generate a Bot API Token.
• Copy the Bot API Token and paste it in .env file TELEGRAM_BOT_TOKEN.
• Add the Bot as admin with "Post messages" permission to the channel where you want to receive notifications in.
• Get channel id:
  • Go to Old telegram web version.
  • Click on the channel.
  • Look the URL param p looks like c1212121212_54651216546
  • Copy the part between c and _ both excluded.
  • Prefix what you have copied with a -100.
  • Channel id looks like -1001212121212
• Copy the channel id and paste it in .env file TELEGRAM_CHANNEL.

That it! 🚀 🚀

[joedixon]

Thanks @faissaloux I'll try to review this later this evening.

[joedixon]

Thanks for this @faissaloux and sorry it took a while to review.

I ended up refactoring a bit so the message is only sent when the article is submitted for approval.

Thank you for your hard work, this is really great.

[driesvints]

Nice job @joedixon. Just one remark.

[driesvints]

Thanks @faissaloux & @joedixon!