Overwatch

Overwatch is a framework to easily construct applications that requires of several independent parts that needs communication between them. Everything is self-contained, and it matches somewhat the advantages of microservices.

Design Goals

• Modularity:

  • Components should be self-contained (as possible)
  • Communication relations between components should be specifically defined
  • Components should be mockable. This is rather important for measurements and testing.

• Single responsibility:

  • It is easier to isolate problems
  • Minimal sharing when unavoidable

• Debuggeability

  • Easy to track workflow
  • Easy to test
  • Easy to measure
  • Asynchronous Communication

Main components

• Overwatch: the main messenger relay component (internal communications). It is also be responsible of managing other components lifecycle and handling configuration updates.
• Services (handled by the overwatch)

Project Structure

• overwatch: Services runner framework
• overwatch-derive: Overwatch macros

Build & Test

Minimal Rust supported version: 1.63

When in development, please, use cargo clippy to build the project. Any warning is promoted to an error in our CI.

• Use cargo test for executing tests, and cargo test -- --nocapture for seeing test outputs.
• Use cargo run --exampel {example_name} to run an example.

Build Documentation

Simply run cargo doc --open --no-deps to build and access a copy of the generated documentation.