LINE-Bot-PythonDev

What is LINE Messaging API

Messaging API overview - Requests are sent over HTTPS in JSON. The communication flow between a bot server and the LINE Platform is as follows:

1. A user sends a message to a LINE Official Account.
2. The LINE Platform sends a webhook event to the webhook URL of the bot server.
3. The bot server checks the webhook event and responds to the user through the LINE Platform. (with your coding/logic)

What's LINE Messaging API can do?

1. Send reply messages
2. Send messages at any time
3. Send different message types
   1. Text message
   2. Sticker message
   3. Image message
   4. Video message
   5. Audio message
   6. Location message
   7. Imagemap message
   8. Template message
   9. Flex Message
4. Get content sent by users
5. Get user profiles
6. Join group chats
7. Use rich menus
8. Use beacons
9. Use account link
10. Get the number of sent messages

Create Virtual Environment

Run following command in your working directory

virtualenv venv

where, venv is your virtual environment name

Activate Virtual Environment

Run following command in your working directory

source venv/bin/activate

Install Python Package

There's 3 required packages:

1. line-bot-sdk
2. fastapi
3. uvicorn
4. python-dotenv

To install latest version, run pip command to install

pip install line-bot-sdk fastapi uvicorn python-dotenv

Or, you can install with the requirements.txt

pip install -r requirements.txt

Environment Configuration

Create file .env and put your token inside.

ACCESS_TOKEN=<Your dhannel access token>
CHANNEL_SECRET=<Your Channel secret>

Running FastAPI

Using following command to run FastAPI on port 8000:

uvicorn main:app --port 8000 --reload

The reload flag is for reload everytime that file made change.