Rust microservices in server-side WebAssembly

The Rust programming language has gained popularity in recent years due to its ability to enable developers to write high-performance and memory-safe programs. However, one challenge for using Rust for server-side applications is that programs are compiled into native machine code, which is not portable and is unsafe in multi-tenancy cloud environments. Additionally, tools for managing and orchestrating native applications in the cloud are lacking. To address these issues, Rust programs can be compiled into WebAssembly (Wasm) bytecode, which can be deployed and run in the cloud using a Wasm runtime. Wasm runtimes provide better isolation than Linux containers and have smaller attack surfaces, and Wasm bytecode is portable across operating systems and hardware platforms. This article provides an overview of the tools and techniques needed to build and deploy Rust microservices in a Wasm runtime, including creating a web service, creating a web service client, creating a database client,