我在Go App Engine应用程序中有一个推送任务队列。当我们试图将任务排入测试中时,无论出于何种原因,任务总是返回404.
我们的app.yaml:
runtime: go
api_version: go1.9
handlers:
- url: /worker/.*
script: _go_app
login: admin
- url: /.*
script: _go_app
实际的任务调用:
func Handler(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
t := taskqueue.NewPOSTTask("/worker", map[string][]string{"key": {"val"}})
_, err := taskqueue.Add(ctx, t, "")
if err != nil {
log.Errorf(ctx, "Failed to add task");
}
fmt.Fprintf(w, "Success");
}
仍然不完整的处理程序,但它存在!
func Worker(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
log.Infof(ctx, "Worker succeeded")
}
最后,证明我们实际上已经添加了路由器的路径:
func init() {
http.HandleFunc("/", Handler)
http.HandleFunc("/worker", Worker)
}
当我们实际运行测试时,我们总是得到以下日志记录输出:
INFO 2018-05-03 09:51:11,794 module.py:846] default: "POST /worker HTTP/1.1" 404 19
WARNING 2018-05-03 09:51:11,794 taskqueue_stub.py:2149] Task � failed to execute. This task will retry in 0.100 seconds
INFO 2018-05-03 09:51:11,897 module.py:846] default: "POST /worker HTTP/1.1" 404 19
WARNING 2018-05-03 09:51:11,897 taskqueue_stub.py:2149] Task � failed to execute. This task will retry in 0.200 seconds
INFO 2018-05-03 09:51:12,101 module.py:846] default: "POST /worker HTTP/1.1" 404 19
WARNING 2018-05-03 09:51:12,101 taskqueue_stub.py:2149] Task � failed to execute. This task will retry in 0.400 seconds
请注意,当我尝试通过像Paw这样的API客户端ping它时,/worker
端点返回302,因此路径似乎已正确配置。只有当我尝试在测试中运行时才会出现404。
为什么这会回归404?我试过围绕他们documentation中的示例推送队列运行测试已遇到同样的问题 - 是否存在某种丢失的配置标志我无法传递给goapp
?
我推出了一个带有最小可复制示例的GitHub仓库here
答案 0 :(得分:4)
运行goapp的顺序是自上而下,但您需要在app.yaml中具体说明。在你的情况下,这将有效:
package main
import (
"fmt"
"net/http"
"google.golang.org/appengine"
"google.golang.org/appengine/log"
"google.golang.org/appengine/taskqueue"
)
func Handler(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
t := taskqueue.NewPOSTTask("/worker", map[string][]string{"key": {"val"}})
_, err := taskqueue.Add(ctx, t, "")
if err != nil {
log.Errorf(ctx, "Failed to add task")
}
fmt.Fprintf(w, "Success")
}
func Worker(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
log.Infof(ctx, "Worker succeeded")
}
func init() {
http.HandleFunc("/", Handler)
http.HandleFunc("/worker", Worker)
}
为此你需要映射网址,如:
runtime: go
api_version: go1.9
handlers:
- url: /worker
script: _go_app
login: admin
- url: /.*
script: _go_app
结果是:
看到工人正在跑两次。这是因为GET /favicon.ico
正在进入GET /.*
映射。所以这只是给你的细节!
更新(05/14/2018):
在您的测试中,您使用aetest.NewInstance()
,它在ioutil.TempDir("", "appengine-aetest")
中运行dev_appserver.py,编写您自己的main.go和app.yaml。请参阅上文instance_vm.go
:
i.appDir, err = ioutil.TempDir("", "appengine-aetest")
if err != nil {
return err
}
defer func() {
if err != nil {
os.RemoveAll(i.appDir)
}
}()
err = os.Mkdir(filepath.Join(i.appDir, "app"), 0755)
if err != nil {
return err
}
err = ioutil.WriteFile(filepath.Join(i.appDir, "app", "app.yaml"), []byte(i.appYAML()), 0644)
if err != nil {
return err
}
err = ioutil.WriteFile(filepath.Join(i.appDir, "app", "stubapp.go"), []byte(appSource), 0644)
if err != nil {
return err
}
//... others codes
const appYAMLTemplate = `
application: %s
version: 1
runtime: go
api_version: go1
vm: true
handlers:
- url: /.*
script: _go_app
`
const appSource = `
package main
import "google.golang.org/appengine"
func main() { appengine.Main() }
`
所以你需要创建自己的服务器实例。这是一种方式:
//out buffer
var out bytes.Buffer
//start server
c := exec.Command("goapp", "serve") //default port=8080, adminPort=8000
c.Stdout = &out
c.Stderr = &out
c.Start()
defer c.Process.Kill()
//delay to wait server is completed
time.Sleep(10 * time.Second)
//... others codes
//quit server
quitReq, err := http.NewRequest("GET", "http://localhost:8000/quit", nil)
_, err := client.Do(quitReq)
if err != nil {
fmt.Errorf("GET /quit handler error: %v", err)
}
要测试您的处理程序功能,请执行以下操作:
//create request (testing Handler func)
req, err := http.NewRequest("GET", "http://localhost:8080/", nil)
if err != nil {
t.Fatal(err.Error())
}
//do GET
client := http.DefaultClient
resp, err := client.Do(req)
if err != nil {
t.Error(err)
}
defer resp.Body.Close()
//delay to wait for the worker to execute
time.Sleep(10 * time.Second)
要检索结果并测试它:
//read response
b, _ := ioutil.ReadAll(resp.Body)
resp_content := string(b)
//checking
if !strings.Contains(resp_content, "Handler Success") {
t.Errorf("Handler not working")
}
//log server content
logserver := out.String()
if !strings.Contains(logserver, "Worker succeeded") {
t.Errorf("Worker not working")
}
//log response
t.Logf(logserver)
结果是:
更新:Github的链接:https://github.com/ag-studies/go-appengine-sample
希望这有帮助!!
答案 1 :(得分:3)
您的handlers
模式为/worker/.*
,但您要向/worker
发布任务。
您应该执行以下操作之一:
/worker.*
或仅/worker
/worker/
或/worker/some-task-name
发出请求。