amikai/line-go-prac

line-go-prac

About The Project

This is homework about implementing echo line bot. The line bot will echo your text message.

Built With

The following are the packages used in this Golang project.

• gin-gonic: as http framework
• go-migrate: to create mongo collections
• cobra: to create subcommands
• viper: to read environment variables and config file.
• golangci: to check the style

Setup line bot server

Before starting this program, please make sure that your docker is running.

1. Get the line channel token and secret from Line Developer Console.

2. Get token and secret from step 1 and set LINE_CHANNEL_SECRET, LINE_CHANNEL_TOKEN as environment variable.

export LINE_CHANNEL_SECRET=YOUR_CHANNEL_SECRET
export LINE_CHANNEL_TOKEN=YOUR_CHANNEL_TOKEN

3. Run line bot server using docker-compose

make dc.run

The server serve on 9999 port. The api endpoint:

http://URL:9999/linebot/webhook
http://URL:9999/linebot/user/${userID}?count=${size}&after=${timestamp} -> list the user image by userID 

4. Use ngrok to expose to public network and past the endpoint in Line Developer Console.

ngork http 9999

example: If ngrok provided url is https://XXXX.jp.ngrok.io, You need to paste follwing webhook url to Line Developer Console

https://XXXX.jp.ngrok.io//linebot/webhook

5. Chat with line, the server will echo your text message.

Others

Style Check

This project uses golangci to check the style.

1. Check golang coding style in docker

make d.lint

2. Check golang coding style in host machine (need to install golangci-lint first)

make lint

Build Image

1. Build docker image for line bot server

make image

Future Work

1. Instrument the service by opentelemetry.
2. Use Kubernetes to manage it instead of docker-compose.
3. Write test for core logic.