oclif VS fastapi

oclif is a library that helps create CLI applications using Node.js. If you are using a different programming language, search for a suitable library.

It is possible, oclif is a full featured framework produced by Salesforce and is used for the Salesforce and Heroku CLI applications. I have used oclif and pkg to bundle a standalone, though I was focused on MacOS not Windows. Any node application should work with pkg, though.

oClif.io

Check out https://oclif.io/

Interesting. TIL about the Open CLI framework that they all seem to be moving to: https://oclif.io/

https://oclif.io is a tool that helps you build command line tools with node. You can use it to help you create an executable for Linux, max, or windows that you can invoke from the command line.

Oclif to quickly click together CLI tools for kicking off and monitoring crawls, generating reports, etc.

During the second Ably Innovation Days, I started working on specifications for an Ably CLI. After the first day Phil and I started with a prototype based on oclif. We managed to create a working prototype in a day that lists Ably apps, and creates a new Ably app. This project is still Work In Progress. Once the CLI is in a releasable state, I'll create some content around this.

A command-line interface, often referred to as a CLI, is a program that allows users to type instructions and interact with a script that processes the input and produces an output. Node.js has a lot of packages that allows you to build CLIs, like args, minimist, and oclif.

In this tutorial, I will demonstrate how to use Burr, an open source framework (disclosure: I helped create it), using simple OpenAI client calls to GPT4, and FastAPI to create a custom email assistant agent. We’ll describe the challenge one faces and then how you can solve for them. For the application frontend we provide a reference implementation but won’t dive into details for it.

That’s when I found FastAPI.

FastAPI & Uvicorn

Discussion at FastAPI GitHub: https://github.com/tiangolo/fastapi/issues/2696

An API application framework (such as FastAPI)

It’s been my experience that async Python frameworks tend to turn IO bound problems into CPU bound problems with a high enough request rate, because due to their nature they act as unbounded queues.

This ends up made worse if you’re using sync routes.

If you’re constrained on a resource such as a database connection pool, your framework will continue to pull http requests off the wire that a sane client will cancel and retry due to timeouts because it takes too long to get a connection out of the pool. Since there isn’t a straightforward way to cancel the execution of a route handler in every Python http framework I’ve seen exhibit this problem, the problem quickly snowballs.

This is an issue with fastapi, too- https://github.com/tiangolo/fastapi/issues/5759

Fast API.

We will create our API using FastAPI, a modern high-performance web framework for building fast APIs with Python. It is designed to be easy to use, efficient, and highly scalable. Some key features of FastAPI include:

FastAPI is a modern, fast, web framework for building APIs with Python 3.7+ based on standard Python type hints. It is designed to be easy to use, fast to run, and secure. In this blog post, we’ll explore the key features of FastAPI and walk through the process of creating a simple API using this powerful framework.