initial commit for routing

controller/controller.go

@@ -0,0 +1,10 @@
+package controller
+
+import (
+  "github.com/gibheer/zero-blog/lib"
+  "github.com/gibheer/zero-blog/controller/welcome"
+)
+
+func DefineRoutes(router *lib.Router) {
+  router.Get("/", welcome.Welcome)
+}

controller/welcome/welcome.go

@@ -0,0 +1,11 @@
+package welcome
+
+import (
+  "fmt"
+  "github.com/gibheer/zero-blog/lib"
+)
+
+func Welcome(c *lib.Context) error {
+  fmt.Fprint(c.Response, "Hello World!")
+  return nil
+}

lib/router.go

@@ -0,0 +1,56 @@
+package lib
+
+import (
+  "log"
+  "net/http"
+  "github.com/julienschmidt/httprouter"
+)
+
+// Bundle all parameters into the context to make it easier to push important
+// data into functions.
+type Context struct {
+  Request *http.Request
+  Response http.ResponseWriter
+  params httprouter.Params
+}
+
+// the func type for internal routes
+type ContextFunc func(*Context) error
+
+type Router struct {
+  router *httprouter.Router
+}
+
+func NewRouter() *Router {
+  return &Router{httprouter.New()}
+}
+
+func (r *Router) Get(path string, target ContextFunc) {
+  r.addRoute("GET", path, target)
+}
+
+func (r *Router) Post(path string, target ContextFunc) {
+  r.addRoute("POST", path, target)
+}
+
+func (r *Router) Put(path string, target ContextFunc) {
+  r.addRoute("PUT", path, target)
+}
+
+func (r *Router) Delete(path string, target ContextFunc) {
+  r.addRoute("DELETE", path, target)
+}
+
+func (r *Router) addRoute(method, path string, target ContextFunc) {
+  r.router.Handle(method, path, func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
+    log.Println("Handling Request for ", path)
+    if err := target(&Context{r, w, p}); err != nil {
+      log.Fatal(err)
+    }
+  })
+}
+
+func (r *Router) Start() {
+  log.Print("Starting to listen for incoming requests ...")
+  log.Fatal(http.ListenAndServe(":9292", r.router))
+}

main.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+  "github.com/gibheer/zero-blog/lib"
+  "github.com/gibheer/zero-blog/controller"
+)
+
+func main() {
+  router := lib.NewRouter()
+  controller.DefineRoutes(router)
+  router.Start()
+}