https://github.com/zkfmapf123/api-gateway-pubsub-pattern

api-gateway + SQS Pub/Sub Pattern
https://github.com/zkfmapf123/api-gateway-pubsub-pattern

api-gateway aws eventbridge pubsub sqs

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api-gateway + SQS Pub/Sub Pattern

• Host: GitHub
• URL: https://github.com/zkfmapf123/api-gateway-pubsub-pattern
• Owner: zkfmapf123
• Created: 2024-09-07T06:41:34.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-09-08T07:58:58.000Z (4 months ago)
• Last Synced: 2024-10-30T05:34:12.846Z (about 2 months ago)
• Topics: api-gateway, aws, eventbridge, pubsub, sqs
• Language: JavaScript
• Homepage:
• Size: 933 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# API Gateway Pub/Sub Pattern

## Desc

- 기존 Server to Server 통신을 Gateway + Queue 통신으로 수정

- 통신 방식을 수정함으로써, Server 간의 Coupling을 낮춰 안정적인 데이터 송/수신 보장

## ASIS

![asis](./public/asis.png)

- Call Server To Server 

- Sub Server가 죽으면 데이터 유실 + 503 (Server Unavailable)

- Pub Server Host : pub.leedonggyu.com

- Sub Server Host : sub.leeodnggyu.com

## TOBE

![tobe](./public/tobe.png)

- Call Pub Server -> Proxy Gateway -> Messaging Queue -> Sub Server

- Sub Server가 죽어도 SQS에서 Queueing 동작하도록 구성

- Pub Server Host : pub.leedonggyu.com

- GW Server Host : sub-gw.leedonggyu.com

- Sub Server Host : sub.leedonggyu.com 

## In Code

```javascript

// pub code

app.get("/pub", async (req,res) => {

    let statusCode = 200

    

    try{

        const result = await axios.post(SUB_HOST, {

            body : {

                id : uuidv4(),

                name : "leedonggyu",

                age : 31,

                job : "devops"

            }

        })

        console.log(`Success >> ${result.status}`)

    }catch(e){

        console.error(e)

        statusCode = 500

        // ignore

    }

    return res.status(statusCode).json({})

})

```

```javascript

// sub code

app.post("/sub",async (req,res) =>{

   

    console.log("body : ",  JSON.stringify(req))

    const {id} = req

    try{

        

        // S3 에 저장

        const command=  new PutObjectCommand({

            Bucket  : "donggyu-test-poc",

            Key : id,

            Body : JSON.stringify(req.body)

        })

        const result = await client.send(command)

        console.log("result >> ", result)

    }catch(e) {

        console.error(e)

        // ignore

    }

    return res.status(200).json({})

})

```

## API-Gateway + SQS

### IAM Role 만들기

![role-1](./public/role-1.png)

![role-2](./public/role-2.png)

### API Gateway + SQS 연동하기

![gw-1](./public/1.png)

![gw-2](./public/2.png)

![gw-3](./public/gw-3.png)

![gw-4](./public/gw-4.png)

![gw-5](./public/gw-5.png)

![gw-6](./public/gw-6.png)

### API Gateway 사용자 지정 도메인

![gw-7](./public/gw-7.png)

- API Mapping 에서 Stage 별로 따로 Domain 구성해야 함

### EventBridge Pipe 설정

![eda-1](./public/eda-1.png)

![eda-2](./public/eda-2.png)

### Result

![result](./public/result.png)

## Reference

-  API Gateway + SQS 

-  Event Bridge Pipe 변환 

```sh

    curl -X POST https://sub-gw.leedonggyu.com/events/sub \

    -H "Content-Type: application/json" \

    -d '{"id": 10, "age" : 31, "name": "leedonggyu", "job": "devops"}'

```

## ...

-  Thanks to my "K"