Tweet when you're at the library

First, we need to connect Foursquare and Twitter to IFTTT.

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  Create IFTTT account.

  Create IFTTT account if you don't have one.

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  Connect Foursquare to IFTTT.

  Give IFTTT access to your Foursquare account, using Foursquare credentials.

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  Connect Twitter to IFTTT.

  Give IFTTT access to your Twitter account, using Twitter credentials.

Next, we need to create a workflow automation scenario using graphical no-code web interface of IFTTT.

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  Set up a Trigger action for Foursquare

  Choose the following trigger: New check-in at category (This Trigger fires every time you check in to a venue in a specific category on Foursquare or Swarm. It only works with public check-ins.).

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  Then set up an Action for Twitter

  Choose this action: Post a tweet (This Action will post a new tweet to your Twitter account. NOTE: Please adhere to Twitter’s Rules and Terms of Service.).

Finally, we need to test this automation and publish it.

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  Customize data flow

  Configure the data that is exchanged between Foursquare and Twitter.

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  Test the workflow and turn it on for production use

  Test your scenario and publish to production. Now you have an automatic workflow, that will Tweet when you're at the library!