Function Hub (FHub)

FHub is a function repository based on a function specification. This allows you to reuse code at the function level, build software that is scalable and flexible, provides interoperability between programming languages, and helps to developers code maintaince.

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Benefits

• Increase productivity helping developers save time by providing a central location to find functions.
• Improve quality of software by providing a way to test functions, track functions changes, keep version compatibility with old versions.
• Reduced costs of software development by providing a way to reuse functions avoiding duplicating work.

Function specification

Simple schema using CUE. Complete schema

name: "identity"
specVersion: "0.1"
version: "1.0"

build: {
  container: {
    image: "golang:1.20"
  }
}
serving: {
  http: {
    url: "https://identity:3000/"
  }
}
functions: {
  login: {
    input: {
      username: string
      password: string
    }
    output: {
      success: bool
    }
  }
}

Scope

• Standardized function definition promoting code reusability, share, and use across different projects.
• Serving allows functions to be hosted and accessible as services with different protocols (http, grpc, ...).
• Build managing dependencies, compiling or packaging functions into executable units, and deployment to different environments (podman, docker, microvm, ...).

Runtime

Responsible to interpret schema, builder, and servirng.

• GO Lang