Creating an Elixir Library for Apple Wallet Passes

In this article, Stephen Njau details the development of ex_pass, an Elixir library aimed at simplifying the process of generating Apple Wallet passes. Faced with tight deadlines and the complexities of Apple's iOS 18 specifications, Njau and his team at Mindvalley realized existing tools in the Elixir ecosystem were inadequate for their needs. The library they developed, ex_pass, addresses these shortcomings by facilitating pass generation, digital signing, and validation with enhanced runtime checks, ultimately making the integration easier for developers. The article also outlines the journey from recognizing the limitations of current libraries to building a comprehensive solution, emphasizing Njau's motivations to ease developers' pain points and contribute to the Elixir community.