Hi there stroopwafel fans As we’re looking forward to publishing more Ruby, Elixir, and JavaScript posts in the coming 2020, we decided to take a look back at the blog posts that you gave the most hearts on Twitter, reads on the blog, and that we got the most appreciation for in 2019.

In today’s post, we will be covering the Elixir library named Broadway. This library is maintained by the kind folks at Plataformatec and allows us to create highly concurrent data processing pipelines with relative ease. After an overview of how Broadway works and when to use it, we’ll dive into a sample project where we’ll leverage Broadway to fetch temperature data from https://openweathermap.org/ in order to find the coldest city on earth.