From 5e05fe8e7877ffd6bc473b77b8ca0a12ad26bd67 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= Date: Thu, 14 Mar 2024 16:23:56 +0100 Subject: Cowboy 2.12, Cowlib 2.13, Gun 2.1 --- docs/en/gun/2.1/manual/gun.connect/index.html | 252 ++++++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100644 docs/en/gun/2.1/manual/gun.connect/index.html (limited to 'docs/en/gun/2.1/manual/gun.connect/index.html') diff --git a/docs/en/gun/2.1/manual/gun.connect/index.html b/docs/en/gun/2.1/manual/gun.connect/index.html new file mode 100644 index 00000000..63ffa96a --- /dev/null +++ b/docs/en/gun/2.1/manual/gun.connect/index.html @@ -0,0 +1,252 @@ + + + + + + + + + + Nine Nines: gun:connect(3) + + + + + + + + + + + + + +
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gun:connect(3)

+ +

Name

+

gun:connect - Establish a tunnel to the origin server

+

Description

+
+
connect(ConnPid, Destination)
+    -> connect(ConnPid, Destination, [], #{}).
+
+connect(ConnPid, Destination, Headers)
+    -> connect(ConnPid, Destination, Headers, #{}).
+
+connect(ConnPid, Destination, Headers, ReqOpts)
+    -> StreamRef
+
+ConnPid     :: pid()
+Destination :: gun:connect_destination()
+Headers     :: gun:req_headers()
+ReqOpts     :: gun:req_opts()
+StreamRef   :: gun:stream_ref()
+
+

Establish a tunnel to the origin server.

+

This feature is currently only available for HTTP/1.1 connections. Upon successful completion of the CONNECT request a tunnel is established and subsequent requests will go through the tunnel.

+

Gun will not automatically re-issue the CONNECT request upon reconnection to the proxy server. The gun_up message can be used to know when the tunnel needs to be established again.

+

Arguments

+
ConnPid
+

The pid of the Gun connection process.

+
+
Destination
+

Destination of the CONNECT request.

+
+
Headers
+

Additional request headers.

+
+
ReqOpts
+

Request options.

+
+
+

Return value

+

A reference that identifies the newly created stream is returned. It is this reference that must be passed in subsequent calls and will be received in messages related to this new stream.

+

Changelog

+
  • 1.2: Function introduced. +
    • +
+

Examples

+
Establish a tunnel
+
+
{ok, ConnPid} = gun:open("proxy.example.org", 1080),
+{ok, http} = gun:await_up(ConnPid),
+StreamRef = gun:connect(ConnPid, #{
+    host => "origin-server.example.org",
+    port => 80
+}),
+{response, fin, 200, _} = gun:await(ConnPid, StreamRef),
+%% Subsequent requests will be sent to origin-server.example.org.
+
+
Establish a tunnel for a secure HTTP/2 connection
+
+
{ok, ConnPid} = gun:open("proxy.example.org", 1080),
+{ok, http} = gun:await_up(ConnPid),
+StreamRef = gun:connect(ConnPid, #{
+    host => "origin-server.example.org",
+    port => 443,
+    protocols => [http2],
+    transport => tls
+}),
+{response, fin, 200, _} = gun:await(ConnPid, StreamRef),
+%% Subsequent requests will be sent to origin-server.example.org.
+
+
Establish a tunnel using proxy authorization
+
+
{ok, ConnPid} = gun:open("proxy.example.org", 1080),
+{ok, http} = gun:await_up(ConnPid),
+StreamRef = gun:connect(ConnPid, #{
+    host => "origin-server.example.org",
+    port => 80,
+    username => "essen",
+    password => "myrealpasswordis"
+}),
+{response, fin, 200, _} = gun:await(ConnPid, StreamRef),
+%% Subsequent requests will be sent to origin-server.example.org.
+
+

See also

+

gun(3), gun:await_up(3), gun_up(3)

+ + + + + + +
+ +
+ + +

+ Gun + 2.1 + Function Reference + +

+ + + +

Navigation

+ +

Version select

+ + +

Like my work? Donate!

+

Donate to Loïc Hoguin because his work on Cowboy, Ranch, Gun and Erlang.mk is fantastic:

+
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Recurring payment options are also available via GitHub Sponsors. These funds are used to cover the recurring expenses like food, dedicated servers or domain names.

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