Lambda on hard mode: Inside Modal's web infrastructure

This post details the technical implementation of Modal's `modal-http` service, which enables serverless functions to handle HTTP and WebSocket requests. It explains how HTTP requests are translated into Modal's internal function-calling mechanism, addressing the challenges of supporting compute-heavy and long-running workloads within a serverless context. The post discusses the differences between traditional serverless platforms and Modal's approach, highlighting the use of Rust for performance and the ability to handle large inputs/outputs and complex heterogeneous workloads.