func getArticle(w http.ResponseWriter, r *http.Request) {
// Load article.
if chi.URLParam(r, "articleID") != "1" {
render.Respond(w, r, data.ErrNotFound)
return
}
article := &data.Article{
ID: 1,
Title: "Article #1",
Data: []string{"one", "two", "three", "four"},
CustomDataForAuthUsers: "secret data for auth'd users only",
}
// Simulate some context values:
// 1. ?auth=true simluates authenticated session/user.
// 2. ?error=true simulates random error.
if r.URL.Query().Get("auth") != "" {
r = r.WithContext(context.WithValue(r.Context(), "auth", true))
}
if r.URL.Query().Get("error") != "" {
render.Respond(w, r, errors.New("error"))
return
}
render.Respond(w, r, article)
}
// Pagination adds the values "per_page" and "page" to the context with values
// from the query params.
func Pagination(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
rawPerPage := chi.URLParam(r, "per_page")
rawPage := chi.URLParam(r, "page")
if len(rawPerPage) == 0 {
rawPerPage = "20"
}
if len(rawPage) == 0 {
rawPage = "0"
}
var err error
var perPage int
if perPage, err = strconv.Atoi(rawPerPage); err != nil {
perPage = 20
}
var page int
if page, err = strconv.Atoi(rawPage); err != nil {
page = 0
}
ctx := r.Context()
ctx = context.WithValue(ctx, 1001, perPage)
ctx = context.WithValue(ctx, 1002, page)
r = r.WithContext(ctx)
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
func deleteClass(w http.ResponseWriter, r *http.Request) {
classType := chi.URLParam(r, "classType")
className := chi.URLParam(r, "className")
err := config.DeleteClass(classType, className)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{err.Error()}})
return
}
render.JSON(w, r, map[string]interface{}{"success": true})
}
func getClassByName(w http.ResponseWriter, r *http.Request) {
classType := chi.URLParam(r, "classType")
className := chi.URLParam(r, "className")
resp, err := config.LoadClassByName(classType, className)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{err.Error()}})
return
}
render.JSON(w, r, map[string]interface{}{"classType": classType, "className": className, "class": resp, "success": true})
}
func getFeed(w http.ResponseWriter, r *http.Request) {
feedName := chi.URLParam(r, "feedName")
feedSettings, err := config.LoadWidget(feedName)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{err.Error()}})
return
}
var items config.FeedItems
feed, err := rss.Fetch(feedSettings.RssURL)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{err.Error()}})
return
}
for _, i := range feed.Items {
items.ParseItem(i)
}
items, err = config.SaveFeed(feedName, items, feedSettings.Count)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{err.Error()}})
return
}
render.JSON(w, r, map[string]interface{}{"feed": items, "success": true})
}
func getWidgetByName(w http.ResponseWriter, r *http.Request) {
widgetName := chi.URLParam(r, "widgetName")
resp, err := config.LoadWidget(widgetName)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{err.Error()}})
return
}
render.JSON(w, r, map[string]interface{}{"widgetName": widgetName, "widget": resp, "success": true})
}
func TestRedirectSlashes(t *testing.T) {
r := chi.NewRouter()
// This middleware must be mounted at the top level of the router, not at the end-handler
// because then it'll be too late and will end up in a 404
r.Use(RedirectSlashes)
r.NotFound(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(404)
w.Write([]byte("nothing here"))
})
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("root"))
})
r.Route("/accounts/:accountID", func(r chi.Router) {
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
accountID := chi.URLParam(r, "accountID")
w.Write([]byte(accountID))
})
})
ts := httptest.NewServer(r)
defer ts.Close()
if status, resp := testRequest(t, ts, "GET", "/", nil); resp != "root" && status != 200 {
t.Fatalf(resp)
}
// NOTE: the testRequest client will follow the redirection..
if status, resp := testRequest(t, ts, "GET", "//", nil); resp != "root" && status != 200 {
t.Fatalf(resp)
}
if status, resp := testRequest(t, ts, "GET", "/accounts/admin", nil); resp != "admin" && status != 200 {
t.Fatalf(resp)
}
// NOTE: the testRequest client will follow the redirection..
if status, resp := testRequest(t, ts, "GET", "/accounts/admin/", nil); resp != "admin" && status != 200 {
t.Fatalf(resp)
}
if status, resp := testRequest(t, ts, "GET", "/nothing-here", nil); resp != "nothing here" && status != 200 {
t.Fatalf(resp)
}
}
// Download a file
func (t Controller) Download(w http.ResponseWriter, r *http.Request) {
id := chi.URLParam(r, "id")
if len(id) != 36 {
http.Error(w, "Thumbnail not found", 404)
return
}
thumb, err := models.FindThumbnail(t.DB, id)
if err != nil {
http.Error(w, "Thumbnail not found", 404)
return
}
http.ServeFile(w, r, lib.LocalPath(thumb.Hash))
}
func putWidget(w http.ResponseWriter, r *http.Request) {
widgetName := chi.URLParam(r, "widgetName")
data, err := ioutil.ReadAll(r.Body)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{"Error Reading Body!", err.Error()}})
return
}
// check for empty body?
if len(data) == 0 {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{"No widget object was passed!"}})
return
}
widget, err := config.SaveWidget(widgetName, data)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{"Error saving Class!", err.Error()}})
return
}
render.JSON(w, r, map[string]interface{}{"widget": widget, "success": true})
}
func TestStripSlashesInRoute(t *testing.T) {
r := chi.NewRouter()
r.NotFound(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(404)
w.Write([]byte("nothing here"))
})
r.Get("/hi", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("hi"))
})
r.Route("/accounts/:accountID", func(r chi.Router) {
r.Use(StripSlashes)
r.Get("/query", func(w http.ResponseWriter, r *http.Request) {
accountID := chi.URLParam(r, "accountID")
w.Write([]byte(accountID))
})
})
ts := httptest.NewServer(r)
defer ts.Close()
if _, resp := testRequest(t, ts, "GET", "/hi", nil); resp != "hi" {
t.Fatalf(resp)
}
if _, resp := testRequest(t, ts, "GET", "/hi/", nil); resp != "nothing here" {
t.Fatalf(resp)
}
if _, resp := testRequest(t, ts, "GET", "/accounts/admin/query", nil); resp != "admin" {
t.Fatalf(resp)
}
if _, resp := testRequest(t, ts, "GET", "/accounts/admin/query/", nil); resp != "admin" {
t.Fatalf(resp)
}
}
// ByGet shortcut to chi.URLParam
// returns the url parameter from a http.Request object.
func (c *Context) ByGet(name string) string {
return chi.URLParam(c.Req, name)
}
func putClass(w http.ResponseWriter, r *http.Request) {
classType := chi.URLParam(r, "classType")
className := chi.URLParam(r, "className")
data, err := ioutil.ReadAll(r.Body)
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{"Error Reading Body!", err.Error()}})
return
}
// check for empty body?
if len(data) == 0 {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{"No class object was passed!"}})
return
}
var class interface{}
switch classType {
case "vpcs":
class, err = config.SaveVpcClass(className, data)
case "subnets":
class, err = config.SaveSubnetClass(className, data)
case "instances":
class, err = config.SaveInstanceClass(className, data)
case "volumes":
class, err = config.SaveVolumeClass(className, data)
case "snapshots":
class, err = config.SaveSnapshotClass(className, data)
case "images":
class, err = config.SaveImageClass(className, data)
case "autoscalegroups":
class, err = config.SaveAutoscalingGroupClass(className, data)
case "launchconfigurations":
class, err = config.SaveLaunchConfigurationClass(className, data)
case "loadbalancers":
class, err = config.SaveLoadBalancerClass(className, data)
case "scalingpolicies":
class, err = config.SaveScalingPolicyClass(className, data)
case "alarms":
class, err = config.SaveAlarmClass(className, data)
case "securitygroups":
class, err = config.SaveSecurityGroupClass(className, data)
case "keypairs":
class, err = config.SaveKeyPairClass(className, data)
}
if err != nil {
render.JSON(w, r, map[string]interface{}{"success": false, "errors": []string{"Error saving Class!", err.Error()}})
return
}
render.JSON(w, r, map[string]interface{}{"classType": classType, "class": class, "success": true})
}
func getAssets(w http.ResponseWriter, r *http.Request) {
// Get the listType
assetType := chi.URLParam(r, "assetType")
var resp interface{}
var errs []error // multi-region
var err error // single region
switch assetType {
case "addresses":
resp, errs = aws.GetAddresses("", false)
case "alarms":
resp, errs = aws.GetAlarms()
case "autoscalegroups":
resp, errs = aws.GetAutoScaleGroups("")
case "iamusers":
resp, err = aws.GetIAMUsers("")
case "images":
resp, errs = aws.GetImages("", false)
case "instances":
resp, errs = aws.GetInstances("", false)
case "keypairs":
resp, errs = aws.GetKeyPairs("")
case "launchconfigurations":
resp, errs = aws.GetLaunchConfigurations("")
case "loadbalancers":
resp, errs = aws.GetLoadBalancers()
case "scalingpolicies":
resp, errs = aws.GetScalingPolicies()
case "securitygroups":
resp, errs = aws.GetSecurityGroups("")
case "simpledbdomains":
resp, errs = aws.GetSimpleDBDomains("")
case "snapshots":
resp, errs = aws.GetSnapshots("", false)
case "subnets":
resp, errs = aws.GetSubnets("")
case "volumes":
resp, errs = aws.GetVolumes("", false)
case "vpcs":
resp, errs = aws.GetVpcs("")
/*
case "buckets": // TODO
resp, errs = aws.GetBuckets()
*/
default:
err = errors.New("Unknown list type")
}
// Combine errors
if err != nil {
errs = append(errs, err)
}
if len(errs) == 0 {
render.JSON(w, r, map[string]interface{}{"assetType": assetType, "assets": resp, "success": true})
} else {
errStrs := make([]string, len(errs))
for i, e := range errs {
errStrs[i] = e.Error()
}
render.JSON(w, r, map[string]interface{}{"assetType": assetType, "assets": resp, "success": false, "errors": errStrs})
}
}
// Generate docs for the MuxBig from chi/mux_test.go
func TestMuxBig(t *testing.T) {
var r, sr1, sr2, sr3, sr4, sr5, sr6 *chi.Mux
r = chi.NewRouter()
r.Use(RequestID)
// Some inline middleware, 1
// We just love Go's ast tools
r.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
})
})
r.Group(func(r chi.Router) {
r.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := context.WithValue(r.Context(), "session.user", "anonymous")
next.ServeHTTP(w, r.WithContext(ctx))
})
})
r.Get("/favicon.ico", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("fav"))
})
r.Get("/hubs/:hubID/view", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s/view reqid:%s session:%s", chi.URLParam(r, "hubID"),
ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
r.Get("/hubs/:hubID/view/*", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s/view/%s reqid:%s session:%s", chi.URLParamFromCtx(ctx, "hubID"),
chi.URLParam(r, "*"), ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
})
r.Group(func(r chi.Router) {
r.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := context.WithValue(r.Context(), "session.user", "elvis")
next.ServeHTTP(w, r.WithContext(ctx))
})
})
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/ reqid:%s session:%s", ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
r.Get("/suggestions", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/suggestions reqid:%s session:%s", ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
r.Get("/woot/:wootID/*", func(w http.ResponseWriter, r *http.Request) {
s := fmt.Sprintf("/woot/%s/%s", chi.URLParam(r, "wootID"), chi.URLParam(r, "*"))
w.Write([]byte(s))
})
r.Route("/hubs", func(r chi.Router) {
sr1 = r.(*chi.Mux)
r.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
})
})
r.Route("/:hubID", func(r chi.Router) {
sr2 = r.(*chi.Mux)
r.Get("/", hubIndexHandler)
r.Get("/touch", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s/touch reqid:%s session:%s", chi.URLParam(r, "hubID"),
ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
sr3 = chi.NewRouter()
sr3.Get("/", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s/webhooks reqid:%s session:%s", chi.URLParam(r, "hubID"),
ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
sr3.Route("/:webhookID", func(r chi.Router) {
sr4 = r.(*chi.Mux)
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s/webhooks/%s reqid:%s session:%s", chi.URLParam(r, "hubID"),
chi.URLParam(r, "webhookID"), ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
})
// TODO: /webooks is not coming up as a subrouter here...
// we kind of want to wrap a Router... ?
// perhaps add .Router() to the middleware inline thing..
// and use that always.. or, can detect in that method..
r.Mount("/webhooks", chi.Chain(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), "hook", true)))
})
}).Handler(sr3))
// HMMMM.. only let Mount() for just a Router..?
// r.Mount("/webhooks", Use(...).Router(sr3))
// ... could this work even....?
// HMMMMMMMMMMMMMMMMMMMMMMMM...
// even if Mount() were to record all subhandlers mounted, we still couldn't get at the
// routes
r.Route("/posts", func(r chi.Router) {
sr5 = r.(*chi.Mux)
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s/posts reqid:%s session:%s", chi.URLParam(r, "hubID"),
ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
})
})
})
r.Route("/folders/", func(r chi.Router) {
sr6 = r.(*chi.Mux)
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/folders/ reqid:%s session:%s",
ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
r.Get("/public", func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/folders/public reqid:%s session:%s",
ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
})
r.Get("/in", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}).ServeHTTP)
r.With(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), "search", true)))
})
}).Get("/search", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("searching.."))
})
})
})
fmt.Println(docgen.JSONRoutesDoc(r))
// docgen.PrintRoutes(r)
}
func hubIndexHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
s := fmt.Sprintf("/hubs/%s reqid:%s session:%s",
chi.URLParam(r, "hubID"), ctx.Value("requestID"), ctx.Value("session.user"))
w.Write([]byte(s))
}
