BOI BOT i[O - O]i

Line bot API implement by golang & gin framework

Implement stack

• Logic coding line message (linebot) : Golang
• API service Golang : Gin Framework
• Store : database type relational microsoftSQL/SQL Server (mssql)
• Container : Docker
• Cloud server : AWS
• Mapping service to https : ngrok

Team delivery task : WFH

• manage task case : Trello
• Version control coding : Gitlab (TODO goal to public repo)
• video Screen&voice call meeting : Dicord

Credit Data source

• total covid19 state in thailand : https://covid19.th-stat.com/
• total covid19 state global root at WHO : https://thevirustracker.com/

How to install

git clone https://gitlab.com/CSBlockchainKmitl/boibot.git
git checkout dev
git pull origin dev

go mod init boibot
go mod vendor

How to run

go run go .

step by step for goal project

1. เก็บ requirement

• ที่มาความสำคัญที่เกิดเป็นโปรเจค boibot (ปัญหา)
• วัตถุประสงค์
• ประโยชน์
• หาแหล่งอ้างอิงของข้อมูล ว่ามีความน่าเชื่อถือหรือมั้ย จะขอใช้ต้อมูลต้องทำยังไง

2. ออกแบบการทำงานระบบ(การทำงานworkflow/api spec&ความสามารถfunc) ที่ตอบโจทย์ requirement

3. ออกแบบฐานข้อมูล(ER&DB spec) ที่ตอบโจทย์ การทำงานระบบ

4. เริ่ม implement ระบบตาม api spec ความสำคัญของงานอยู่ใต้การดูแลของ PM

   • line message api
   • update data api get covid19 state from root data source update to db

5. build source code` to docker images

6. push docker images to dockerhub

7. create instance cloud

   • select shopping spec server
   • setting inbound/outbound Security Groups

8. remote to instance ,pull docker images and run docker container

9. **mapping public IP whit https by ngrok

10. copy https://url to line bot webhook

11. test enjoin with boibot in line app :)

** !! why use ngrok to mapping https

• ngrok(have Free Trial)
• line bot webhook : require HTTPS
• เปิด https and setting domain ไม่ฟรี

1-4. Implement

5. Docker

5.1 Make Dockerfile

• Make new file by cmd : touch Dockerfile
• Copy to Dockerfile

#Copy to Dockerfile
FROM golang:latest
# Author
MAINTAINER dangminhtruong
# Create working folder
RUN mkdir /app
COPY . /app
WORKDIR /app

5.2 Docker build images

technology for building and container your applications with env

EX : docker build -t <dockerhub_id>/<projectname>:latest .

#Docker images
docker build -t jiraponjermkure/boibot:latest . 
docker images

see in terminal

REPOSITORY                   TAG                    IMAGE ID            CREATED              SIZE
boibot                       latest                 412b6c8394b1        About a minute ago   828MB

6. Docker push tp dockerHub

7. Create new EC2 instance in AWS

1. Login AWS console
2. Shopping server spec :

• OS : ubuntu v18.09
• CPU : 2 core
• RAM : 2 GB

3. download file.pem is key ssh remote to ec2
4. remote ssh to ec2 by file.pem
5. install environment

• Docker ce : https://docs.docker.com/install/linux/docker-ce/ubuntu/
• jq :

sudo apt install jq

6. run docker container
7. test HTTP request

8. Remote to instance&Docker run container

** after run cmd in terminal : it auto pull docker images from dockerHub(is public repo)

#Docker container
docker run --name boibot -p 1080:8080 -d jiraponjermkure/boibot:latest go run . 
 //My boibot start at 1443 port
docker ps -a

**!!Webhook Linebot : is require url HTTPS

9-10. Mapping Public IP for EC2 to HTTPS by ngrok

mapping <ip:port> to https://url random by ngrok(Free Trial)

#mapping & run ngrok background print log to file.log
ngrok http 172.31.44.106:1080 > ngrok.log &

Copy https://url by ngrok to line bot webhook

EX: https://cb8ee84d.ngrok.io

#get https://url random by ngrok
curl -s localhost:4040/api/tunnels | jq -r .tunnels[0].public_url

11.Enjoin with boibot in line app :)

ngrok (Free Tier)

For quick demos and other simple tunneling needs.
HTTP/TCP tunnels on random URLs/ports
1 online ngrok process
4 tunnels/ngrok process
40 connections / minute