WASM Microservices: From Single Binaries to Composable Components

📰 Dev.to · Rafa Calderon

Learn how to build composable microservices using WASM to reduce serialization and network overhead

intermediate Published 24 Feb 2026
Action Steps
  1. Build a WASM module using a language like Rust or C++ to create a reusable component
  2. Use a WASM runtime like Wasmer or Wasmtime to execute the module
  3. Configure a service mesh like Istio or Linkerd to manage communication between WASM microservices
  4. Test the performance of the WASM microservices using tools like Apache Bench or Gatling
  5. Apply security best practices to the WASM microservices using tools like Clang or OpenSSL
Who Needs to Know This

Backend engineers and architects can benefit from this approach to improve the performance and scalability of their microservices-based systems

Key Insight

💡 WASM microservices can reduce serialization and network overhead by allowing for composable, language-agnostic components

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Key Takeaways

Learn how to build composable microservices using WASM to reduce serialization and network overhead

Full Article

Traditional microservices pay a massive tax on serialization and network overhead. WASM microservices...
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