func main()

in seata/gateway/server_a/server_a.go [41:104]
58 lines of code
9 McCabe index (conditional complexity)

func main() {
	r := gin.Default()

	r.POST("/service-a/begin", func(context *gin.Context) {
		xid := context.Request.Header.Get("x_seata_xid")
		fmt.Println(fmt.Sprintf("xid %s", xid))
		account := &Account{
			ID:     1000024549,
			Amount: 200,
		}
		inv := &Inventory{
			ID:  1000000005,
			Qty: 2,
		}

		accountReq, err := json.Marshal(account)
		if err != nil {
			context.JSON(400, gin.H{"success": false, "message": err.Error()})
			return
		}
		invReq, err := json.Marshal(inv)
		if err != nil {
			context.JSON(400, gin.H{"success": false, "message": err.Error()})
			return
		}
		req1, err := http.NewRequest("POST", "http://localhost:2047/service-b/try", bytes.NewBuffer(accountReq))
		if err != nil {
			context.JSON(400, gin.H{"success": false, "message": err.Error()})
			return
		}
		req1.Header.Set("x_seata_xid", xid)

		req2, err := http.NewRequest("POST", "http://localhost:2048/service-c/try", bytes.NewBuffer(invReq))
		if err != nil {
			context.JSON(400, gin.H{"success": false, "message": err.Error()})
			return
		}
		req2.Header.Set("x_seata_xid", xid)

		client := &http.Client{}
		result1, err := client.Do(req1)
		if err != nil {
			context.JSON(400, gin.H{"success": false, "message": err.Error()})
			return
		}
		if result1.StatusCode != http.StatusOK {
			result1.Write(context.Writer)
			return
		}

		result2, err := client.Do(req2)
		if err != nil {
			context.JSON(400, gin.H{"success": false, "message": err.Error()})
			return
		}
		if result2.StatusCode == http.StatusOK {
			result2.Write(context.Writer)
			return
		}
		context.JSON(400, gin.H{"success": false, "message": "there is a error"})
	})

	r.Run(":8080")
}