Code Spelunking: Uncovering Convex's API Generation Secrets
Blog post from Convex
Mike Cann explores the inner workings of Convex's automated API generation, which significantly enhances the speed and enjoyment of development. By diving into the Convex codebase, he uncovers that the process involves TypeScript's advanced typing features rather than complex runtime logic. The API is generated by identifying all entry points and exporting them, regardless of whether they contain Convex functions. The filtering occurs through TypeScript types, which exclude non-Convex functions, leaving a clean record type mapping paths to functions. At runtime, a Proxy object allows for seamless conversion of these paths into strings that align with Convex's REST API format. Cann concludes that understanding this mechanism opens up possibilities for further enhancements, such as exclusion lists or TypeScript plugins, which could optimize API management and refactoring processes.
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