From b36fbd2a0ef06fc25e6d2eb2b4a5aca2ecdbd970 Mon Sep 17 00:00:00 2001
From: Mark McGranaghan <mmcgrana@gmail.com>
Date: Tue, 27 Dec 2016 12:51:36 -0800
Subject: [PATCH] Clean out examples not used on the site

---
 .../basic-authentication.go                   | 58 -----------
 examples/canonical-hosts/canonical-hosts.go   | 37 -------
 examples/canonical-hosts/canonical-hosts.sh   |  4 -
 .../graceful-shutdown/graceful-shutdown.go    | 98 -------------------
 .../graceful-shutdown/graceful-shutdown.sh    |  6 --
 examples/hello-web/hello-web.go               | 13 ---
 examples/http-client/http-client.go           | 15 ---
 examples/middleware/middleware.go             | 22 -----
 examples/middleware/middleware.sh             | 10 --
 examples/postgres/postgres.go                 | 79 ---------------
 examples/postgres/postgres.sh                 | 10 --
 examples/redis/redis.go                       | 77 ---------------
 examples/redis/redis.sh                       |  6 --
 examples/request-logging/request-logging.go   | 40 --------
 examples/request-routing/request-routing.go   | 19 ----
 examples/request-routing/request-routing.sh   |  4 -
 examples/responses/responses.go               | 19 ----
 examples/responses/responses.sh               |  5 -
 .../short-declarations/short-declarations.go  |  9 --
 .../short-declarations/short-declarations.sh  |  2 -
 examples/static-content/static-content.go     | 12 ---
 examples/static-content/static-content.sh     |  5 -
 .../streaming-http-servers.go                 | 28 ------
 23 files changed, 578 deletions(-)
 delete mode 100644 examples/basic-authentication/basic-authentication.go
 delete mode 100644 examples/canonical-hosts/canonical-hosts.go
 delete mode 100644 examples/canonical-hosts/canonical-hosts.sh
 delete mode 100644 examples/graceful-shutdown/graceful-shutdown.go
 delete mode 100644 examples/graceful-shutdown/graceful-shutdown.sh
 delete mode 100644 examples/hello-web/hello-web.go
 delete mode 100644 examples/http-client/http-client.go
 delete mode 100644 examples/middleware/middleware.go
 delete mode 100644 examples/middleware/middleware.sh
 delete mode 100644 examples/postgres/postgres.go
 delete mode 100644 examples/postgres/postgres.sh
 delete mode 100644 examples/redis/redis.go
 delete mode 100644 examples/redis/redis.sh
 delete mode 100644 examples/request-logging/request-logging.go
 delete mode 100644 examples/request-routing/request-routing.go
 delete mode 100644 examples/request-routing/request-routing.sh
 delete mode 100644 examples/responses/responses.go
 delete mode 100644 examples/responses/responses.sh
 delete mode 100644 examples/short-declarations/short-declarations.go
 delete mode 100644 examples/short-declarations/short-declarations.sh
 delete mode 100644 examples/static-content/static-content.go
 delete mode 100644 examples/static-content/static-content.sh
 delete mode 100644 examples/streaming-http-servers/streaming-http-servers.go

diff --git a/examples/basic-authentication/basic-authentication.go b/examples/basic-authentication/basic-authentication.go
deleted file mode 100644
index efe193a..0000000
--- a/examples/basic-authentication/basic-authentication.go
+++ /dev/null
@@ -1,58 +0,0 @@
-package main
-
-import (
-    "encoding/base64"
-    "fmt"
-    "net/http"
-    "strings"
-)
-
-type Auth func(string, string) bool
-type handler http.HandlerFunc
-
-func testAuth(r *http.Request, auth Auth) bool {
-    header := r.Header.Get("Authorization")
-    s := strings.SplitN(header, " ", 2)
-    if len(s) != 2 || s[0] != "Basic" {
-        return false
-    }
-    b, err := base64.StdEncoding.DecodeString(s[1])
-    if err != nil {
-        return false
-    }
-    pair := strings.SplitN(string(b), ":", 2)
-    if len(pair) != 2 {
-        return false
-    }
-    return auth(pair[0], pair[1])
-}
-
-func requireAuth(w http.ResponseWriter, r *http.Request) {
-    w.Header().Set("WWW-Authenticate",
-        "Basic realm=\"private\"")
-    w.WriteHeader(401)
-    w.Write([]byte("401 Unauthorized\n"))
-}
-
-func wrapAuth(h handler, a Auth) handler {
-    return func(w http.ResponseWriter, r *http.Request) {
-        if testAuth(r, a) {
-            h(w, r)
-        } else {
-            requireAuth(w, r)
-        }
-    }
-}
-
-func hello(w http.ResponseWriter, r *http.Request) {
-    fmt.Fprintln(w, "Hello secret world!")
-}
-
-func main() {
-    checkPassword := func(_, password string) bool {
-        return password == "supersecret"
-    }
-    handler1 := http.HanderFunc(hello)
-    handler2 := wrapAuth(handler1, checkPassword)
-    http.ListenAndServe(":5000", handler2)
-}
diff --git a/examples/canonical-hosts/canonical-hosts.go b/examples/canonical-hosts/canonical-hosts.go
deleted file mode 100644
index 5a2574c..0000000
--- a/examples/canonical-hosts/canonical-hosts.go
+++ /dev/null
@@ -1,37 +0,0 @@
-package main
-
-import "net/http"
-import "strings"
-import "fmt"
-
-type handler http.HandlerFunc
-
-func hello(w http.ResponseWriter, r *http.Request) {
-    w.Header().Set("Content-Type", "text/plain")
-    fmt.Fprintln(w, "Hello canonical world")
-}
-
-func wrapCanonicalHost(f handler, chost string) handler {
-    return func(w http.ResponseWriter, r *http.Request) {
-        hostPort := strings.Split(r.Host, ":")
-        host := hostPort[0]
-        if host != chost {
-            fmt.Println("redirect to", chost)
-            hostPort[0] = chost
-            url := "http://" +
-                strings.Join(hostPort, ":") +
-                r.URL.String()
-            http.Redirect(w, r, url, 301)
-            return
-        }
-        f(w, r)
-    }
-}
-
-func main() {
-    handler := wrapCanonicalHost(hello, "localhost")
-    http.HandleFunc("/", handler)
-    http.ListenAndServe(":5000", nil)
-}
-
-// todo: comment about https canonicalization
diff --git a/examples/canonical-hosts/canonical-hosts.sh b/examples/canonical-hosts/canonical-hosts.sh
deleted file mode 100644
index f2582cc..0000000
--- a/examples/canonical-hosts/canonical-hosts.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-$ go run canonical-hosts.go
-
-$ curl -i -L http://127.0.0.1:5000/go
-$ curl -i -L http://127.0.0.1:5000/go
diff --git a/examples/graceful-shutdown/graceful-shutdown.go b/examples/graceful-shutdown/graceful-shutdown.go
deleted file mode 100644
index 07feac2..0000000
--- a/examples/graceful-shutdown/graceful-shutdown.go
+++ /dev/null
@@ -1,98 +0,0 @@
-package main
-
-import (
-    "fmt"
-    "net"
-    "net/http"
-    "os"
-    "os/signal"
-    "sync/atomic"
-    "syscall"
-    "time"
-)
-
-func slow(res http.ResponseWriter, req *http.Request) {
-    fmt.Println("respond at=start")
-    time.Sleep(time.Second * 5)
-    res.Header().Set("Content-Type", "text/plain")
-    fmt.Fprintln(res, "Finally.")
-    fmt.Println("respond at=finish")
-}
-
-var connCount int64 = 0
-
-type watchedConn struct {
-    net.Conn
-}
-
-func (w *watchedConn) Close() error {
-    atomic.AddInt64(&connCount, -1)
-    return w.Conn.Close()
-}
-
-type watchedListener struct {
-    net.Listener
-}
-
-func (l *watchedListener) Accept() (net.Conn, error) {
-    conn, err := l.Listener.Accept()
-    if err != nil {
-        return nil, err
-    }
-    atomic.AddInt64(&connCount, 1)
-    return &watchedConn{Conn: conn}, nil
-}
-
-func main() {
-    stop := make(chan bool, 1)
-    sig := make(chan os.Signal, 1)
-
-    handler := http.HandlerFunc(slow)
-    server := &http.Server{Handler: handler}
-    fmt.Println("listen at=start")
-    listener, listenErr := net.Listen("tcp", ":5000")
-    if listenErr != nil {
-        panic(listenErr)
-    }
-    wListener := &watchedListener{Listener: listener}
-    fmt.Println("listen at=finish")
-
-    go func() {
-        <-stop
-        fmt.Println("close at=start")
-        closeErr := wListener.Close()
-        if closeErr != nil {
-            panic(closeErr)
-        }
-        fmt.Println("close at=finish")
-    }()
-
-    go func() {
-        signal.Notify(
-            sig, syscall.SIGINT,
-            syscall.SIGTERM)
-        fmt.Println("trap at=start")
-        <-sig
-        stop <- true
-        fmt.Println("trap at=finish")
-    }()
-
-    fmt.Println("serve at=start")
-    server.Serve(wListener)
-    fmt.Println("serve at=finish")
-    for {
-        connCountCurrent := atomic.LoadInt64(&connCount)
-        if connCountCurrent > 0 {
-            fmt.Println("wait at=pending remaining=",
-                connCountCurrent)
-            time.Sleep(time.Second)
-        } else {
-            fmt.Println("wait at=finish remaining=",
-                connCountCurrent)
-            return
-        }
-    }
-}
-
-// todo: pull in work from gobyexample-server
-// todo: factor out to cut-and-pastable against normal app
diff --git a/examples/graceful-shutdown/graceful-shutdown.sh b/examples/graceful-shutdown/graceful-shutdown.sh
deleted file mode 100644
index 824b09b..0000000
--- a/examples/graceful-shutdown/graceful-shutdown.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-$ go build graceful-shutdown.go
-$ ./graceful-shutdown
-
-$ curl -i http://127.0.0.1:5000/
-
-^C
diff --git a/examples/hello-web/hello-web.go b/examples/hello-web/hello-web.go
deleted file mode 100644
index 0433f2c..0000000
--- a/examples/hello-web/hello-web.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package main
-
-import "net/http"
-
-func hello(res http.ResponseWriter, req *http.Request) {
-    res.Header().Set("Content-Type", "text/plain")
-    res.Write([]byte("Hello web\n"))
-}
-
-func main() {
-    http.HandleFunc("/", hello)
-    http.ListenAndServe(":5000", nil)
-}
diff --git a/examples/http-client/http-client.go b/examples/http-client/http-client.go
deleted file mode 100644
index fdcc352..0000000
--- a/examples/http-client/http-client.go
+++ /dev/null
@@ -1,15 +0,0 @@
-package main
-
-import "net/http"
-import "io/ioutil"
-import "fmt"
-
-func main() {
-    resp, err := http.Get("http://127.0.0.1:5000/")
-    if err != nil {
-        panic(err)
-    }
-    defer resp.Body.Close()
-    body, err := ioutil.ReadAll(resp.Body)
-    fmt.Print(string(body))
-}
diff --git a/examples/middleware/middleware.go b/examples/middleware/middleware.go
deleted file mode 100644
index 55d88e4..0000000
--- a/examples/middleware/middleware.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package main
-
-import "net/http"
-import "fmt"
-
-func hello(w http.ResponseWriter, r *http.Request) {
-    w.Header().Set("Content-Type", "text/plain")
-    fmt.Fprintln(w, "Hello wrapped world")
-}
-
-func wrapMiddleware(f http.HandlerFunc) http.HandlerFunc {
-    return func(w http.ResponseWriter, r *http.Request) {
-        w.Header().Set("X-Wrapped", "true")
-        f(w, r)
-    }
-}
-
-func main() {
-    handler := wrapMiddleware(hello)
-    http.HandleFunc("/", handler)
-    http.ListenAndServe(":5000", nil)
-}
diff --git a/examples/middleware/middleware.sh b/examples/middleware/middleware.sh
deleted file mode 100644
index a7bd6b9..0000000
--- a/examples/middleware/middleware.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-$ go run middleware.go
-
-$ curl -i http://127.0.0.1:5000/
-HTTP/1.1 200 OK
-Content-Type: text/plain
-Date: Tue, 02 Oct 2012 00:37:18 GMT
-Transfer-Encoding: chunked
-X-Wrapped: true
-
-Hello wrapped world
diff --git a/examples/postgres/postgres.go b/examples/postgres/postgres.go
deleted file mode 100644
index 37f2186..0000000
--- a/examples/postgres/postgres.go
+++ /dev/null
@@ -1,79 +0,0 @@
-package main
-
-import _ "github.com/bmizerany/pq"
-import "database/sql"
-import "time"
-import "fmt"
-
-func main() {
-    conf := "dbname=gobyexample sslmode=disable"
-    db, openErr := sql.Open("postgres", conf)
-    if openErr != nil {
-        panic(openErr)
-    }
-    defer db.Close()
-    fmt.Println(db)
-
-    createRep, createErr := db.Exec(
-        `CREATE TABLE items
-         (a int, b float, c boolean,
-          d text, e timestamp with time zone)`)
-    if createErr != nil {
-        panic(createErr)
-    }
-    fmt.Println(createRep)
-
-    insertRep, insertErr := db.Exec(
-        `INSERT INTO items VALUES
-         (1, 2.0, false,
-          'string', '2000-01-01T01:02:03Z')`)
-    if insertErr != nil {
-        panic(insertErr)
-    }
-    fmt.Println(insertRep)
-
-    timeFmt := time.RFC3339
-    t1, _ := time.Parse(timeFmt, "2000-04-08T03:02:01Z")
-    t2, _ := time.Parse(timeFmt, "2007-03-02T10:15:45Z")
-    minsertRep, minsertErr := db.Exec(
-        `Insert INTO items VALUES
-         ($1, $2, $3, $4, $5),
-         ($6, $7, $8, $9, $10)`,
-        3, 7.0, true, "more", t1,
-        5, 1.0, false, "less", t2)
-    if minsertErr != nil {
-        panic(minsertErr)
-    }
-    num, _ := minsertRep.RowsAffected()
-    fmt.Println(num)
-
-    rows, selectErr := db.Query("SELECT * FROM items")
-    if selectErr != nil {
-        panic(selectErr)
-    }
-    defer rows.Close()
-    for rows.Next() {
-        var r1 int
-        var r2 float64
-        var r3 bool
-        var r4 string
-        var r5 time.Time
-        rows.Scan(&r1, &r2, &r3, &r4, &r5)
-        fmt.Println(r1, r2, r3, r4, r5)
-    }
-    rowsErr := rows.Err()
-    if rowsErr != nil {
-        panic(rowsErr)
-    }
-
-    dropRep, dropErr := db.Exec("DROP TABLE items")
-    if dropErr != nil {
-        panic(dropErr)
-    }
-    fmt.Println(dropRep)
-}
-
-// todo: connection pooling & concurrency
-// todo: re-connection
-// todo: errors
-// todo: database_url
diff --git a/examples/postgres/postgres.sh b/examples/postgres/postgres.sh
deleted file mode 100644
index 6bc1a7b..0000000
--- a/examples/postgres/postgres.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-# First, be sure that you've installed Postgres
-# and have a server running locally at port 5432.
-
-# Then create an example database.
-$ createdb gobyexample
-
-# Now install the dependencies for the postgres
-# example and try running it.
-$ go get github.com/bmizerany/pq
-$ go run postgres.go
diff --git a/examples/redis/redis.go b/examples/redis/redis.go
deleted file mode 100644
index 7ca9572..0000000
--- a/examples/redis/redis.go
+++ /dev/null
@@ -1,77 +0,0 @@
-package main
-
-import "github.com/fzzbt/radix/redis"
-import "time"
-import "fmt"
-
-func main() {
-    // initialize
-    conf := redis.DefaultConfig()
-    client := redis.NewClient(conf)
-    fmt.Println(conf)
-    fmt.Println(client)
-
-    // set & get
-    setRep := client.Set("foo", "bar")
-    if setRep.Err != nil {
-        panic(setRep.Err)
-    }
-    fmt.Println(setRep)
-    getRep := client.Get("foo")
-    if getRep.Err != nil {
-        panic(getRep.Err)
-    }
-    getStr, _ := getRep.Str()
-    fmt.Println(getRep)
-    fmt.Println(getStr)
-
-    // variadic calls
-    client.Set("foo1", "bar1")
-    client.Set("foo2", "bar2")
-    client.Set("foo3", "bar3")
-    mgetRep := client.Mget("foo1", "foo2", "foo3")
-    fmt.Println(mgetRep)
-
-    // multi calls
-    mcRep := client.MultiCall(func(mc *redis.MultiCall) {
-        mc.Set("k1", "v1")
-        mc.Get("k1")
-    })
-    if mcRep.Err != nil {
-        panic(mcRep.Err)
-    }
-    mcVal, _ := mcRep.Elems[1].Str()
-    fmt.Println(mcVal)
-
-    // transactional calls
-    tRep := client.Transaction(func(mc *redis.MultiCall) {
-        mc.Set("k2", "v2")
-        mc.Get("k2")
-    })
-    if tRep.Err != nil {
-        panic(tRep.Err)
-    }
-    tStr, _ := tRep.Elems[1].Str()
-    fmt.Println(tStr)
-
-    // pubsub
-    msgHdlr := func(msg *redis.Message) {
-        fmt.Println(msg)
-    }
-    sub, subErr := client.Subscription(msgHdlr)
-    if subErr != nil {
-        panic(subErr)
-    }
-    defer sub.Close()
-    sub.Subscribe("chan1", "chan2")
-    sub.Psubscribe("chan*")
-    client.Publish("chan1", "foo")
-    sub.Unsubscribe("chan1")
-    client.Publish("chan2", "bar")
-    time.Sleep(time.Second)
-}
-
-// todo: connection pooling & concurrency?
-// todo: reconnection?
-// todo: errors?
-// todo: redis_url
diff --git a/examples/redis/redis.sh b/examples/redis/redis.sh
deleted file mode 100644
index 503c43a..0000000
--- a/examples/redis/redis.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-# Start a Redis server.
-$ redis-server
-
-# In another terminal, run the redis client:
-$ go get github.com/fzzbt/radix/redis
-$ go run redis.go
diff --git a/examples/request-logging/request-logging.go b/examples/request-logging/request-logging.go
deleted file mode 100644
index f5a4d41..0000000
--- a/examples/request-logging/request-logging.go
+++ /dev/null
@@ -1,40 +0,0 @@
-package main
-
-import "net/http"
-import "time"
-import "fmt"
-
-func runLogging(logs chan string) {
-    for log := range logs {
-        fmt.Println(log)
-    }
-}
-
-func wrapLogging(f http.HandlerFunc) http.HandlerFunc {
-    logs := make(chan string, 10000)
-    go runLogging(logs)
-    return func(w http.ResponseWriter, r *http.Request) {
-        start := time.Now()
-        f(w, r)
-        method := r.Method
-        path := r.URL.Path
-        elapsed := float64(time.Since(start)) / 1000000.0
-        logs <- fmt.Sprintf(
-            "method=%s path=%s elapsed=%f",
-            method, path, elapsed)
-    }
-}
-
-func hello(w http.ResponseWriter, r *http.Request) {
-    w.Header().Set("Content-Type", "text/plain")
-    time.Sleep(time.Millisecond * 50)
-    fmt.Fprintln(w, "Hello logged world")
-}
-
-func main() {
-    handler := wrapLogging(hello)
-    http.HandleFunc("/", handler)
-    http.ListenAndServe(":5000", nil)
-}
-
-// todo: logging status code?
diff --git a/examples/request-routing/request-routing.go b/examples/request-routing/request-routing.go
deleted file mode 100644
index b1360ff..0000000
--- a/examples/request-routing/request-routing.go
+++ /dev/null
@@ -1,19 +0,0 @@
-package main
-
-import "github.com/bmizerany/pat"
-import "net/http"
-import "fmt"
-
-func hello(w http.ResponseWriter, req *http.Request) {
-    fmt.Fprintln(w, "hello "+req.URL.Query().Get(":name"))
-}
-
-func main() {
-    p := pat.New()
-    p.Get("/hello/:name", http.HandlerFunc(hello))
-    http.ListenAndServe(":5000", p)
-}
-
-// todo: consider gorilla-web
-// todo: defaults
-// todo: fallthroughs
diff --git a/examples/request-routing/request-routing.sh b/examples/request-routing/request-routing.sh
deleted file mode 100644
index c358da8..0000000
--- a/examples/request-routing/request-routing.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-$ go get github.com/bmizerany/pat
-$ go run request-routing.go
-
-$ curl -i http://127.0.0.1:5000/hello/gopher
diff --git a/examples/responses/responses.go b/examples/responses/responses.go
deleted file mode 100644
index 1a4b52c..0000000
--- a/examples/responses/responses.go
+++ /dev/null
@@ -1,19 +0,0 @@
-package main
-
-import "net/http"
-import "fmt"
-
-func hello(res http.ResponseWriter, req *http.Request) {
-    res.Header().Set("Content-Type", "text/plain")
-    if req.URL.Path == "/protected" {
-        res.WriteHeader(401)
-        fmt.Fprintln(res, "Not allowed")
-    } else {
-        fmt.Fprintln(res, "Hello")
-    }
-}
-
-func main() {
-    http.HandleFunc("/", hello)
-    http.ListenAndServe(":5000", nil)
-}
diff --git a/examples/responses/responses.sh b/examples/responses/responses.sh
deleted file mode 100644
index ebae391..0000000
--- a/examples/responses/responses.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-$ go run xx-http-server-status-code.go
-
-$ curl -i http://127.0.0.1:5000/ | grep HTTP
-
-$ curl -i http://127.0.0.1:5000/protected | grep HTTP
diff --git a/examples/short-declarations/short-declarations.go b/examples/short-declarations/short-declarations.go
deleted file mode 100644
index bdd1b81..0000000
--- a/examples/short-declarations/short-declarations.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import "fmt"
-
-func main() {
-    // `x := val` is shorthand for `var x type = val`.
-    x := "Hello var"
-    fmt.Println(x)
-}
diff --git a/examples/short-declarations/short-declarations.sh b/examples/short-declarations/short-declarations.sh
deleted file mode 100644
index 0044451..0000000
--- a/examples/short-declarations/short-declarations.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-$ go run short-declarations.go
-Hello var
diff --git a/examples/static-content/static-content.go b/examples/static-content/static-content.go
deleted file mode 100644
index 41b2d81..0000000
--- a/examples/static-content/static-content.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package main
-
-import "net/http"
-
-func main() {
-    handler := http.FileServer(http.Dir("./"))
-    http.ListenAndServe(":5000", handler)
-}
-
-// todo: index pages
-// todo: disable listing
-// todo: custom 404 handling
diff --git a/examples/static-content/static-content.sh b/examples/static-content/static-content.sh
deleted file mode 100644
index 135fcc3..0000000
--- a/examples/static-content/static-content.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-$ go run static-content.go
-
-$ curl http://127.0.0.1:5000/
-$ curl http://127.0.0.1:5000/http-server-static.go
-$ curl http://127.0.0.1:5000/missing
diff --git a/examples/streaming-http-servers/streaming-http-servers.go b/examples/streaming-http-servers/streaming-http-servers.go
deleted file mode 100644
index 009a045..0000000
--- a/examples/streaming-http-servers/streaming-http-servers.go
+++ /dev/null
@@ -1,28 +0,0 @@
-package main
-
-import (
-    "fmt"
-    "net/http"
-    "time"
-)
-
-func stream(resp http.ResponseWriter, req *http.Request) {
-    respf, ok := resp.(http.Flusher)
-    if !ok {
-        panic("not flushable")
-    }
-    fmt.Println("stream")
-    resp.WriteHeader(200)
-    for i := 0; i < 10; i++ {
-        n, err := resp.Write([]byte("tick\n"))
-        respf.Flush()
-        fmt.Println("tick", n, err)
-        time.Sleep(time.Second * 1)
-    }
-}
-
-func main() {
-    http.HandleFunc("/", stream)
-    fmt.Println("serve")
-    http.ListenAndServe(":5000", nil)
-}