reaction 20.2

Part of Catalyst Ecosystem. Project manifest.

Installation

Common installation:

pip install -U reaction

Getting started

consumer.py:

import asyncio
from typing import List, Any
from reaction.rpc import RabbitRPC


class rpc(RabbitRPC):
    URL = 'amqp://user:password@host'


@rpc()
def sync_square(*values) -> List[float]:
    return [v ** 2 for v in values]


@rpc()
async def async_square(*values) -> List[float]:
    await asyncio.sleep(1)
    return [v ** 2 for v in values]


if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    loop.create_task(sync_square.consume())
    loop.create_task(async_square.consume())
    loop.run_forever()

client.py:

import asyncio
from consumer import sync_square, async_square

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    x = loop.run_until_complete(sync_square.call(2, 3))
    y = loop.run_until_complete(async_square.call(4, 5, 6))
    print(x)  # 4, 9
    print(y)  # 16, 25, 36
    loop.close()

Example

• Register telegram bot, achieve token
• cd example && TG_TOKEN="telegram bot token goes here" docker-compose up --force-recreate --build
• RabbitMQ web ui: http://127.0.0.1:15672/#/
  • user: admin
  • password: j8XfG9ZDT5ZZrWTzw62q
• Docs (you can submit requests from web ui): http://127.0.0.1:8000/docs#/
• Redoc: http://127.0.0.1:8000/redoc
• Telegram bot is ready to classify ants & bees, but you have to send files "as a photo"

Telegram bot quick howto

Install async telegram client first:

$ pip install aiotg

Then create your bot:

tgbot.py

from consumer import async_square
from aiotg import Bot, Chat

bot = Bot(api_token='telegram bot token goes here')


@bot.command('/start')
async def start(chat: Chat, match):
    return chat.reply('Send me /square command with one float argument')


@bot.command(r"/square (.+)")
async def square_command(chat: Chat, match):
    val = match.group(1)
    try:
        val = float(val)
        square = await async_square.call(val)
        resp = f'Square for {val} is {square}'
    except:
        resp = 'Invalid number'
    return chat.reply(resp)


bot.run()