Rust microservices in server-side WebAssembly

• SSVM

  50 7,952 9.7 C++

  WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.

  

Started as a secure runtime inside web browsers, Wasm programs can be securely isolated in their own sandbox. With a new generation of Wasm runtimes, such as the Cloud Native Computing Foundation’s WasmEdge Runtime, you can now run Wasm applications on the server. You can compile Rust programs to Wasm bytecode, and then deploy the Wasm application in the cloud.

• tokio

  1 42 8.0 Rust

  A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ... (by WasmEdge)

  

The tokio and mio crates for asynchronous networking applications

• InfluxDB

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• mio

  1 5 6.7 Rust

  Metal IO library for Rust WASI target (by WasmEdge)

  

The tokio and mio crates for asynchronous networking applications

• hyper

  1 11 9.0 Rust

  An HTTP library for Rust (by WasmEdge)

  

The hyper crate for HTTP server and client applications

• distribution-spec

  54 747 7.8 Go

  OCI Distribution Specification

  

WasmEdge applications are fully OCI-compliant. They can be managed and stored in the Docker Hub or other Open Container Initiative repositories. Through crun integration, WasmEdge can run side-by-side with Linux container applications in the same Kubernetes cluster. This repository showcases how to run WasmEdge applications in popular container toolchains including CRI-O, containerd, Kubernetes, Kind, OpenYurt, KubeEdge, and more. WebAssembly runtime in the Kubernetes stack.

• microservice-rust-mysql

  14 338 5.9 Rust

  A template project for building a database-driven microservice in Rust and run it in the WasmEdge sandbox.

  

The example below, from the microservice-rust-mysql demo app, shows how to create a web server in hyper for WasmEdge. The main listening loop of the web server is as follows:

• reqwest

  1 4 5.4 Rust

  An easy and powerful Rust HTTP Client (by WasmEdge)

  

The reqwest crate for easy-to-use HTTP clients

• SaaSHub

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• http_req

  1 12 4.0 Rust

  simple wasm HTTP client

  

The http_req crate for HTTP and HTTPS clients

• rust-mysql-simple-wasi

  1 4 4.6 Rust

  Mysql client library implemented in rust.

  

The myql crate is a synchronous MySQL client

• mysql_async_wasi

  1 11 6.9 Rust

  Asyncronous Rust Mysql driver based on Tokio for WASI.

  

The mysql_async is an asynchronous MySQL client

• dapr-sdk-wasmedge

  1 37 5.5 Rust

  An experimental Dapr SDK in Rust. It is designed to run in WasmEdge applications.

  

The Dapr SDK for WASI (WebAssembly System Interface) enables WasmEdge-based microservices to access their attached Dapr sidecars. A complete demo application with a Jamstack static web frontend, three microservices, and a database service is also available.

• hyper

  97 13,845 9.2 Rust

  An HTTP library for Rust (by hyperium)

  

The example below, from the microservice-rust-mysql demo app, shows how to create a web server in hyper for WasmEdge. The main listening loop of the web server is as follows:

• dapr-wasm

  4 262 5.8 Rust

  A template project to demonstrate how to run WebAssembly functions as sidecar microservices in dapr

  

The Dapr SDK for WASI (WebAssembly System Interface) enables WasmEdge-based microservices to access their attached Dapr sidecars. A complete demo application with a Jamstack static web frontend, three microservices, and a database service is also available.

• dapr

  80 23,313 9.7 Go

  Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge.

  

Furthermore, microservices are often deployed together with service frameworks. For example, Dapr is a popular runtime framework for microservices. It provides a “sidecar” service for each microservice. The microservice accesses the sidecar via the Dapr API to discover and invoke other services on the network, manage state data, and access message queues.

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