The cryptocurrency market is hotter than ever. Bitcoin and Ethereum are two of the most popular cryptocurrencies out there, and their price is heavily influenced by speculation fueled by news articles and public statements from thought leaders. To help you keep track of the ever-changing world of crypto, I'm going to walk you through how to build a custom service input plugin for Telegraf that will monitor keywords from a Twitter live stream and send them to InfluxDB. We'll use Chronograf to explore the data and build a simple dashboard. Finally, we will end up with a dashboard that looks similar to the following.
Of course, all of this is just for fun unless you are one of the lucky few that has access to the Twitter firehose — but it's a good way to get introduced to writing a custom Telegraf plugin for whatever system or device you need to monitor.
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