65 lines
1.9 KiB
Go
65 lines
1.9 KiB
Go
package examples
|
||
|
||
import (
|
||
"fmt"
|
||
"time"
|
||
|
||
"github.com/gin-gonic/gin"
|
||
"github.com/sirupsen/logrus"
|
||
"github.com/yedf/dtm/common"
|
||
"github.com/yedf/dtm/dtmcli"
|
||
)
|
||
|
||
// 启动命令：go run app/main.go qs
|
||
|
||
// 事务参与者的服务地址
|
||
const qsBusiAPI = "/api/busi_start"
|
||
const qsBusiPort = 8082
|
||
|
||
var qsBusi = fmt.Sprintf("http://localhost:%d%s", qsBusiPort, qsBusiAPI)
|
||
|
||
// QuickStarMain called by app/main.go
|
||
func QuickStarMain() {
|
||
QsStartSvr()
|
||
QsFireRequest()
|
||
}
|
||
|
||
// QsStartSvr 1
|
||
func QsStartSvr() {
|
||
app := common.GetGinApp()
|
||
qsAddRoute(app)
|
||
logrus.Printf("quick qs examples listening at %d", qsBusiPort)
|
||
go app.Run(fmt.Sprintf(":%d", qsBusiPort))
|
||
time.Sleep(100 * time.Millisecond)
|
||
}
|
||
|
||
// QsFireRequest 1
|
||
func QsFireRequest() string {
|
||
req := &gin.H{"amount": 30} // 微服务的载荷
|
||
// DtmServer为DTM服务的地址
|
||
saga := dtmcli.NewSaga(DtmServer).
|
||
// 添加一个TransOut的子事务，正向操作为url: qsBusi+"/TransOut"， 逆向操作为url: qsBusi+"/TransOutCompensate"
|
||
Add(qsBusi+"/TransOut", qsBusi+"/TransOutCompensate", req).
|
||
// 添加一个TransIn的子事务，正向操作为url: qsBusi+"/TransOut"， 逆向操作为url: qsBusi+"/TransInCompensate"
|
||
Add(qsBusi+"/TransIn", qsBusi+"/TransInCompensate", req)
|
||
// 提交saga事务，dtm会完成所有的子事务/回滚所有的子事务
|
||
err := saga.Submit()
|
||
e2p(err)
|
||
return saga.Gid
|
||
}
|
||
|
||
func qsAddRoute(app *gin.Engine) {
|
||
app.POST(qsBusiAPI+"/TransIn", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
|
||
return M{"result": "SUCCESS"}, nil
|
||
}))
|
||
app.POST(qsBusiAPI+"/TransInCompensate", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
|
||
return M{"result": "SUCCESS"}, nil
|
||
}))
|
||
app.POST(qsBusiAPI+"/TransOut", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
|
||
return M{"result": "SUCCESS"}, nil
|
||
}))
|
||
app.POST(qsBusiAPI+"/TransOutCompensate", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
|
||
return M{"result": "SUCCESS"}, nil
|
||
}))
|
||
}
|