make_async

The make_async function takes a synchronous function (for instance a LangChain agent) and returns an asynchronous function that will run the original function in a separate thread. This is useful to run long running synchronous tasks without blocking the event loop.

Parameters

Callable

The synchronous function to run in a separate thread.

Returns

Coroutine

required

The asynchronous function that will run the synchronous function in a separate thread.

Usage

import time
import chainlit as cl

def sync_func():
    time.sleep(5)
    return "Hello!"

@cl.on_message
async def main(message: cl.Message):
    answer = await cl.make_async(sync_func)()
    await cl.Message(
        content=answer,
    ).send()

LangChain agent

import chainlit as cl

res = await cl.make_async(agent)(input_str, callbacks=[cl.LangchainCallbackHandler()])
await cl.Message(content=res["text"]).send()

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Life Cycle Hooks

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Parameters

Returns

Usage

​Parameters

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​Usage

Parameters

Returns

Usage