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Diffstat (limited to 'src/net/http/doc.go')
-rw-r--r-- | src/net/http/doc.go | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/net/http/doc.go b/src/net/http/doc.go new file mode 100644 index 0000000..67c4246 --- /dev/null +++ b/src/net/http/doc.go @@ -0,0 +1,106 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* +Package http provides HTTP client and server implementations. + +Get, Head, Post, and PostForm make HTTP (or HTTPS) requests: + + resp, err := http.Get("http://example.com/") + ... + resp, err := http.Post("http://example.com/upload", "image/jpeg", &buf) + ... + resp, err := http.PostForm("http://example.com/form", + url.Values{"key": {"Value"}, "id": {"123"}}) + +The client must close the response body when finished with it: + + resp, err := http.Get("http://example.com/") + if err != nil { + // handle error + } + defer resp.Body.Close() + body, err := io.ReadAll(resp.Body) + // ... + +For control over HTTP client headers, redirect policy, and other +settings, create a Client: + + client := &http.Client{ + CheckRedirect: redirectPolicyFunc, + } + + resp, err := client.Get("http://example.com") + // ... + + req, err := http.NewRequest("GET", "http://example.com", nil) + // ... + req.Header.Add("If-None-Match", `W/"wyzzy"`) + resp, err := client.Do(req) + // ... + +For control over proxies, TLS configuration, keep-alives, +compression, and other settings, create a Transport: + + tr := &http.Transport{ + MaxIdleConns: 10, + IdleConnTimeout: 30 * time.Second, + DisableCompression: true, + } + client := &http.Client{Transport: tr} + resp, err := client.Get("https://example.com") + +Clients and Transports are safe for concurrent use by multiple +goroutines and for efficiency should only be created once and re-used. + +ListenAndServe starts an HTTP server with a given address and handler. +The handler is usually nil, which means to use DefaultServeMux. +Handle and HandleFunc add handlers to DefaultServeMux: + + http.Handle("/foo", fooHandler) + + http.HandleFunc("/bar", func(w http.ResponseWriter, r *http.Request) { + fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path)) + }) + + log.Fatal(http.ListenAndServe(":8080", nil)) + +More control over the server's behavior is available by creating a +custom Server: + + s := &http.Server{ + Addr: ":8080", + Handler: myHandler, + ReadTimeout: 10 * time.Second, + WriteTimeout: 10 * time.Second, + MaxHeaderBytes: 1 << 20, + } + log.Fatal(s.ListenAndServe()) + +Starting with Go 1.6, the http package has transparent support for the +HTTP/2 protocol when using HTTPS. Programs that must disable HTTP/2 +can do so by setting Transport.TLSNextProto (for clients) or +Server.TLSNextProto (for servers) to a non-nil, empty +map. Alternatively, the following GODEBUG environment variables are +currently supported: + + GODEBUG=http2client=0 # disable HTTP/2 client support + GODEBUG=http2server=0 # disable HTTP/2 server support + GODEBUG=http2debug=1 # enable verbose HTTP/2 debug logs + GODEBUG=http2debug=2 # ... even more verbose, with frame dumps + +The GODEBUG variables are not covered by Go's API compatibility +promise. Please report any issues before disabling HTTP/2 +support: https://golang.org/s/http2bug + +The http package's Transport and Server both automatically enable +HTTP/2 support for simple configurations. To enable HTTP/2 for more +complex configurations, to use lower-level HTTP/2 features, or to use +a newer version of Go's http2 package, import "golang.org/x/net/http2" +directly and use its ConfigureTransport and/or ConfigureServer +functions. Manually configuring HTTP/2 via the golang.org/x/net/http2 +package takes precedence over the net/http package's built-in HTTP/2 +support. +*/ +package http |