Learn how to add functions to react to tweets sent to the bot, and to generate reply tweets.
- [Narrator] Now we need to do the plumbing work if you will…to actually made our bot listen to a stream of Tweets…on Twitter.…So we're going to make ourselves a function called Monitor…and the monitor function is going to take a session…fairly straight forward, clearly that's something we created…just here but also here we're saying that this function…takes another function as an argument.…You might have remembered much earlier in the course…we were hovering over functions just looking at their type…signatures like I might have hovered over that and…seen that that took a unit argument and returned a…Choice.result of UserSession and string.…
Though here, we're doing the opposite thing.…We're actually sending a function signature in…and the function signature of our onHit parameter…is it going to be something that takes a UserSession…and a Tweet and returns units, in other words,…returns nothing at all.…Then in the body of monitor, we call GetUserStream,…which once again is a thing which provided by box kite…
Author
Released
12/20/2016- Defining values and calling functions in F#
- Defining and identifying discriminated unions
- Working with if-else expressions
- Writing unit test
- Using type providers to access data
- Analyzing data with collection functions
- Plotting data using the R type provider
- Using railway-oriented programming to handle errors
- Integrating with Twitter
- Deploying an F# application to Azure
Skill Level Intermediate
Duration
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Introduction
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Welcome59s
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Exercise files41s
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1. Get Started with F#
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Record type and arrays2m 35s
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Forward piping3m 39s
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Array mapping and iteration6m 22s
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If-else expressions2m 9s
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Exception handling2m 40s
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Option types5m 9s
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The bot and type signatures4m 19s
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2. Build a Simple Parser with Unit Testing
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Install NUnit4m 23s
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Write a real test4m 31s
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Write a parser5m 8s
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Refactor tests5m 18s
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Test unhappy paths4m 1s
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Challenge35s
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Solution3m 38s
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3. Use F# CSV Type Provider to Get Data
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Recap and code tidy-up1m 51s
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Introducing Quandl1m 52s
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Challenge1m 14s
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Solution9m 34s
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4. Analyze Data with F# Collection Functions
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5. Use RStats Provider and ggplot2 to Plot Data
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RStats and ggplot21m 38s
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Develop the chart generator5m 45s
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Challenge38s
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Solution2m 21s
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6. Use BoxKite with Twitter
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Create a Twitter application5m 24s
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React to directed tweets4m 47s
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7. Deploy a Working Bot
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Call the reply function1m 17s
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Try the bot running locally1m 53s
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Understanding ROP2m 37s
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Conclusion
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Next steps1m 46s
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Video: React to directed tweets