# Twitter Functions This module provides couple of twitter functions that can be reused and composed in other applications. ## Twitter Trend Function Functions can return either Trends topics or the Locations of the trending topics. The `twitter.trend.trend-query-type` property allows choosing between both types. * Trends - `twitter.trend.trend-query-type` is set to `trend`. Leverages the https://developer.twitter.com/en/docs/trends/trends-for-location/api-reference/get-trends-place[Trends API] to return the https://help.twitter.com/en/using-twitter/twitter-trending-faqs[trending topics] near a specific latitude, longitude location. * Trend Locations - the `twitter.trend.trend-query-type` is set `trendLocation`. Retrieve a full or nearby locations list of trending topics by location. If the `latitude`, `longitude` parameters are NOT provided the processor performs the https://developer.twitter.com/en/docs/trends/locations-with-trending-topics/api-reference/get-trends-available[Trends Available API] and returns the locations that Twitter has trending topic information for. If the `latitude`, `longitude` parameters are provided the processor performs the https://developer.twitter.com/en/docs/trends/locations-with-trending-topics/api-reference/get-trends-closest[Trends Closest API] and returns the locations that Twitter has trending topic information for, closest to a specified location. Response is an array of `locations` that encode the location's WOEID and some other human-readable information such as a canonical name and country the location belongs in. ### Beans for injection You can import the `TwitterTrendFunctionConfiguration` in a Spring Boot application and then inject the following bean. `filterFunction` You can use `Function<Message<?>, Message<byte[]>> twitterTrendFunction` as a qualifier when injecting. Once injected, you can use the `apply` method of the `Function` to invoke it and get the result. ### Configuration Options ### Other usage