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@jvelezmagic
jvelezmagic / main.py
Created May 17, 2023 12:05
Langchain FastAPI stream with simple memory
# The goal of this file is to provide a FastAPI application for handling
# chat requests amd generation AI-powered responses using conversation chains.
# The application uses the LangChaing library, which includes a chatOpenAI model
# for natural language processing.
# The `StreamingConversationChain` class is responsible for creating and storing
# conversation memories and generating responses. It utilizes the `ChatOpenAI` model
# and a callback handler to stream responses as they're generated.
# The application defines a `ChatRequest` model for handling chat requests,
@ninely
ninely / main.py
Last active October 27, 2024 09:14
Langchain with fastapi stream example
"""This is an example of how to use async langchain with fastapi and return a streaming response.
The latest version of Langchain has improved its compatibility with asynchronous FastAPI,
making it easier to implement streaming functionality in your applications.
"""
import asyncio
import os
from typing import AsyncIterable, Awaitable
import uvicorn
from dotenv import load_dotenv

Server-Sent Events

There's something called server-sent events which is an alternative to using web sockets if you want to break free from the strict request-response scheme.

I want to explore this technology using Dart.

First, let's create the simplest webserver that could possibly work:

Future main(List arguments) async {
@n1snt
n1snt / Oh my ZSH with zsh-autosuggestions zsh-syntax-highlighting zsh-fast-syntax-highlighting and zsh-autocomplete.md
Last active November 17, 2024 00:22
Oh my ZSH with zsh-autosuggestions zsh-syntax-highlighting zsh-fast-syntax-highlighting and zsh-autocomplete.md

Oh my zsh.

Oh My Zsh

Install ZSH.

sudo apt install zsh-autosuggestions zsh-syntax-highlighting zsh

Install Oh my ZSH.

@beginor
beginor / snowflake-id.sql
Last active November 14, 2024 07:54
Twitter Snowflake ID for PostgreSQL
CREATE SEQUENCE public.global_id_seq;
ALTER SEQUENCE public.global_id_seq OWNER TO postgres;
CREATE OR REPLACE FUNCTION public.id_generator()
RETURNS bigint
LANGUAGE 'plpgsql'
AS $BODY$
DECLARE
our_epoch bigint := 1314220021721;
seq_id bigint;
@vsouza
vsouza / .bashrc
Last active September 21, 2024 12:31
Golang setup in Mac OSX with HomeBrew. Set `GOPATH` and `GOROOT` variables in zshell, fish or bash.
# Set variables in .bashrc file
# don't forget to change your path correctly!
export GOPATH=$HOME/golang
export GOROOT=/usr/local/opt/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin
@kelvinst
kelvinst / local-gitignore.md
Last active August 14, 2024 16:21
Como fazer um .gitignore local?

Como fazer um .gitignore local?

Bom, este é um recurso, como muitos outros, bem escondido do git. Então resolvi fazer um post para explicar a situação em que pode-se usar e como fazer essa magia negra. 👻

O problema

Você provavelmente já adicionou algum dia um arquivo no projeto que não deveria ser commitado certo? E como você fez para ignorar esse arquivo mesmo? Provavelmente adicionou no arquivo .gitignore.

OK então, aí você commitou esse arquivo .gitignore e pronto, mais ninguém poderá criar um arquivo com o mesmo nome e commitar. Mas espera aí! Não era isso que você queria! Você só queria ignorar esse arquivo na sua máquina, se alguém, algum dia por obséquio achar esse um nome bom para seu arquivo, que assim seja.

@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this: