Scrapermost

Python library to use Mattermost APIv4.

This repository is a fork of Python Mattermost Driver.

Table of Contents

1. Getting Started
   1. Requirements
   2. Installation
2. Usage
   1. Initialize client and connect to a Mattermost server
   2. Use the Web service API
   3. Connect to the Websocket API
   4. Disconnect
3. License
4. Acknowledgments

Getting Started

Requirements

• Python 3.10 or greater
• poetry

Installation

As this project is not published to Pypi yet, follow the guidelines below.

1. Clone the repository and change it to your working directory.

2. Install the project:

$ poetry install

Usage

1. Activate the virtual environment:

$ source `poetry env info --path`/bin/activate

2. Use it as a library.

Example usage in the examples folder.

Initialize client and connect to a Mattermost server

A Driver, or client, is an object used to interact with the Mattermost API.

At least the following options must be provided as a dict:

• login_id (user account's email address or username) and password
• or token

Full list of Driver options here.

Example with synchronous driver:

from requests import ConnectionError
from scrapermost import AsyncDriver
from scrapermost.exceptions import NoAccessTokenProvided


def init_driver(server_host: str, email: str, password: str) -> Driver:
    return Driver(
        {
            "hostname": server_host,
            "login_id": email,
            "password": password,
            "scheme": "https",
            "port": 443,
        }
    )

def connect_driver_to_server(driver: Driver) -> None:
    try:
        driver.login()
    except (ConnectionError, NoAccessTokenProvided) as err:
        print(f"Driver login failed: {err}")

Example with asynchronous driver:

from requests import ConnectionError
from scrapermost import AsyncDriver
from scrapermost.exceptions import NoAccessTokenProvided


def init_driver(server_host: str, email: str, password: str) -> AsyncDriver:
    return AsyncDriver(
        {
            "hostname": server_host,
            "login_id": email,
            "password": password,
            "scheme": "https",
            "port": 443,
        }
    )

async def connect_driver_to_server(driver: AsyncDriver) -> None:
    try:
        await driver.login()
    except (ConnectionError, NoAccessTokenProvided) as err:
        print(f"Driver login failed: {err}")

Use the Web service API

You can make api calls by using calling Driver.endpointofchoice. For example, if you want to get a user's data (http://your-mattermost-url.com/api/v4/users/{user_id}), you would use Driver.users.get_user(user_id). The returned data will be either in JSON format or the raw response.

Example with asynchronous driver:

from typing import Any

response: Any = await driver.users.get_user(user_id="me")

Connect to the Websocket API

It is possible to use a websocket to listen to Mattermost events (event list here).

Create a function to handle every Mattermost websocket event:

from typing import Any, Dict

from scrapermost.events import Posted

# Minimalist event handler example
async def handle_new_post(event: Dict[str, Any]) -> None:
    if event.get("event") == "posted":
        post: Posted = Posted(event)

        ...

Assuming Driver.login() was called, connect the websocket to the Mattermost server using Driver.start_websocket().

Example with synchronous driver:

driver.start_websocket(handle_new_post)

Example with asynchronous driver:

await driver.start_websocket(handle_new_post)

Disconnect

Example with asynchronous driver:

await driver.disconnect_websocket()
await driver.logout()

License

Distributed under the MIT License. See LICENSE for more information.

Acknowledgments

Original project Python Mattermost Driver (documentation here) by Christian Plümer.