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108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
package main
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import (
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"log"
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"net/http"
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"github.com/emicklei/go-restful"
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)
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// This example has the same service definition as restful-user-resource
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// but uses a different router (CurlyRouter) that does not use regular expressions
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//
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// POST http://localhost:8080/users
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// <User><Id>1</Id><Name>Melissa Raspberry</Name></User>
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//
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// GET http://localhost:8080/users/1
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//
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// PUT http://localhost:8080/users/1
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// <User><Id>1</Id><Name>Melissa</Name></User>
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//
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// DELETE http://localhost:8080/users/1
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//
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type User struct {
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Id, Name string
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}
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type UserResource struct {
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// normally one would use DAO (data access object)
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users map[string]User
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}
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func (u UserResource) Register(container *restful.Container) {
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ws := new(restful.WebService)
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ws.
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Path("/users").
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Consumes(restful.MIME_XML, restful.MIME_JSON).
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Produces(restful.MIME_JSON, restful.MIME_XML) // you can specify this per route as well
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ws.Route(ws.GET("/{user-id}").To(u.findUser))
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ws.Route(ws.POST("").To(u.updateUser))
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ws.Route(ws.PUT("/{user-id}").To(u.createUser))
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ws.Route(ws.DELETE("/{user-id}").To(u.removeUser))
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container.Add(ws)
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}
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// GET http://localhost:8080/users/1
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//
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func (u UserResource) findUser(request *restful.Request, response *restful.Response) {
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id := request.PathParameter("user-id")
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usr := u.users[id]
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if len(usr.Id) == 0 {
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response.AddHeader("Content-Type", "text/plain")
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response.WriteErrorString(http.StatusNotFound, "User could not be found.")
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} else {
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response.WriteEntity(usr)
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}
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}
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// POST http://localhost:8080/users
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// <User><Id>1</Id><Name>Melissa Raspberry</Name></User>
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//
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func (u *UserResource) updateUser(request *restful.Request, response *restful.Response) {
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usr := new(User)
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err := request.ReadEntity(&usr)
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if err == nil {
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u.users[usr.Id] = *usr
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response.WriteEntity(usr)
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} else {
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response.AddHeader("Content-Type", "text/plain")
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response.WriteErrorString(http.StatusInternalServerError, err.Error())
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}
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}
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// PUT http://localhost:8080/users/1
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// <User><Id>1</Id><Name>Melissa</Name></User>
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//
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func (u *UserResource) createUser(request *restful.Request, response *restful.Response) {
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usr := User{Id: request.PathParameter("user-id")}
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err := request.ReadEntity(&usr)
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if err == nil {
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u.users[usr.Id] = usr
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response.WriteHeaderAndEntity(http.StatusCreated, usr)
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} else {
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response.AddHeader("Content-Type", "text/plain")
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response.WriteErrorString(http.StatusInternalServerError, err.Error())
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}
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}
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// DELETE http://localhost:8080/users/1
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//
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func (u *UserResource) removeUser(request *restful.Request, response *restful.Response) {
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id := request.PathParameter("user-id")
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delete(u.users, id)
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}
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func main() {
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wsContainer := restful.NewContainer()
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wsContainer.Router(restful.CurlyRouter{})
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u := UserResource{map[string]User{}}
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u.Register(wsContainer)
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log.Print("start listening on localhost:8080")
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server := &http.Server{Addr: ":8080", Handler: wsContainer}
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log.Fatal(server.ListenAndServe())
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}
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