Module `slack_bolt.middleware.async_middleware`

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from abc import ABCMeta, abstractmethod
from typing import Callable, Awaitable, Optional

from slack_bolt.request.async_request import AsyncBoltRequest
from slack_bolt.response import BoltResponse


class AsyncMiddleware(metaclass=ABCMeta):
    """A middleware can process request data before other middleware and listener functions."""

    @abstractmethod
    async def async_process(
        self,
        *,
        req: AsyncBoltRequest,
        resp: BoltResponse,
        next: Callable[[], Awaitable[BoltResponse]],
    ) -> Optional[BoltResponse]:
        """Processes a request data before other middleware and listeners.
        A middleware calls `next()` function if the chain should continue.

            @app.middleware
            async def simple_middleware(req, resp, next):
                # do something here
                await next()

        Args:
            req: The incoming request
            resp: The response
            next: The function to tell the chain that it can continue

        Returns:
            Processed response (optional)
        """
        raise NotImplementedError()

    @property
    def name(self) -> str:
        """The name of this middleware"""
        return f"{self.__module__}.{self.__class__.__name__}"

Classes

class AsyncMiddleware

A middleware can process request data before other middleware and listener functions.

Expand source code

class AsyncMiddleware(metaclass=ABCMeta):
    """A middleware can process request data before other middleware and listener functions."""

    @abstractmethod
    async def async_process(
        self,
        *,
        req: AsyncBoltRequest,
        resp: BoltResponse,
        next: Callable[[], Awaitable[BoltResponse]],
    ) -> Optional[BoltResponse]:
        """Processes a request data before other middleware and listeners.
        A middleware calls `next()` function if the chain should continue.

            @app.middleware
            async def simple_middleware(req, resp, next):
                # do something here
                await next()

        Args:
            req: The incoming request
            resp: The response
            next: The function to tell the chain that it can continue

        Returns:
            Processed response (optional)
        """
        raise NotImplementedError()

    @property
    def name(self) -> str:
        """The name of this middleware"""
        return f"{self.__module__}.{self.__class__.__name__}"

Subclasses

Instance variables

var name : str

The name of this middleware

Expand source code

@property
def name(self) -> str:
    """The name of this middleware"""
    return f"{self.__module__}.{self.__class__.__name__}"

Methods

async def async_process(self, *, req: AsyncBoltRequest, resp: BoltResponse, next: Callable[[], Awaitable[BoltResponse]]) ‑> Optional[BoltResponse]

Processes a request data before other middleware and listeners. A middleware calls next() function if the chain should continue.

@app.middleware
async def simple_middleware(req, resp, next):
    # do something here
    await next()

Args

req: The incoming request
resp: The response
next: The function to tell the chain that it can continue

Returns

Processed response (optional)

Expand source code

@abstractmethod
async def async_process(
    self,
    *,
    req: AsyncBoltRequest,
    resp: BoltResponse,
    next: Callable[[], Awaitable[BoltResponse]],
) -> Optional[BoltResponse]:
    """Processes a request data before other middleware and listeners.
    A middleware calls `next()` function if the chain should continue.

        @app.middleware
        async def simple_middleware(req, resp, next):
            # do something here
            await next()

    Args:
        req: The incoming request
        resp: The response
        next: The function to tell the chain that it can continue

    Returns:
        Processed response (optional)
    """
    raise NotImplementedError()