60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package examples
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import (
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"fmt"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/sirupsen/logrus"
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"github.com/yedf/dtm/common"
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"github.com/yedf/dtm/dtmcli"
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)
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// 事务参与者的服务地址
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const qsBusiApi = "/api/busi_start"
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const qsBusiPort = 8082
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var qsBusi = fmt.Sprintf("http://localhost:%d%s", qsBusiPort, qsBusiApi)
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func StartMain() {
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go qsStartSvr()
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qsFireRequest()
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time.Sleep(1000 * time.Second)
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}
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func qsStartSvr() {
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logrus.Printf("quick start examples starting")
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app := common.GetGinApp()
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qsAddRoute(app)
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app.Run(fmt.Sprintf(":%d", qsBusiPort))
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}
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func qsFireRequest() {
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req := &gin.H{"amount": 30} // 微服务的载荷
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// DtmServer为DTM服务的地址
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saga := dtmcli.NewSaga(DtmServer).
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// 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"
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Add(qsBusi+"/TransOut", qsBusi+"/TransOutCompensate", req).
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// 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"
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Add(qsBusi+"/TransIn", qsBusi+"/TransInCompensate", req)
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// 提交saga事务，dtm会完成所有的子事务/回滚所有的子事务
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err := saga.Submit()
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e2p(err)
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}
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func qsAddRoute(app *gin.Engine) {
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app.POST(qsBusiApi+"/TransIn", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
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return M{"result": "SUCCESS"}, nil
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}))
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app.POST(qsBusiApi+"/TransInCompensate", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
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return M{"result": "SUCCESS"}, nil
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}))
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app.POST(qsBusiApi+"/TransOut", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
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return M{"result": "SUCCESS"}, nil
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}))
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app.POST(qsBusiApi+"/TransOutCompensate", common.WrapHandler(func(c *gin.Context) (interface{}, error) {
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return M{"result": "SUCCESS"}, nil
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}))
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logrus.Printf("quick qs examples listening at %d", qsBusiPort)
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}
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