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DOC: lua: documentation about the httpclient API

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The patch adds the documentation about the httpclient lua
implementation.
This commit is contained in:
William Lallemand 2021-11-19 16:02:44 +01:00
parent ee72a43321
commit 00a15025be
1 changed files with 57 additions and 0 deletions
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doc/lua-api/index.rst
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@ -819,6 +819,14 @@ Core class
:returns: A :ref:`socket_class` object.
.. js:function:: core.httpclient()
**context**: init, task, action
This function returns a new object of a *httpclient* class.
:returns: A :ref:`httpclient_class` object.
.. js:function:: core.concat()
**context**: body, init, task, action, sample-fetch, converter
@ -1836,6 +1844,55 @@ HTTP class
:param integer status: The new response status code.
:param string reason: The new response reason (optional).
.. _httpclient_class:
HTTPClient class
================
.. js:class:: HTTPClient
The httpclient class allows issue of outbound HTTP requests through a simple
API without the knowledge of HAProxy internals.
.. js:function:: HTTPClient.get(httpclient, request)
.. js:function:: HTTPClient.head(httpclient, request)
.. js:function:: HTTPClient.put(httpclient, request)
.. js:function:: HTTPClient.post(httpclient, request)
.. js:function:: HTTPClient.delete(httpclient, request)
Send an HTTP request and wait for a response. GET, HEAD PUT, POST and DELETE methods can be used.
The HTTPClient will send asynchronously the data and is able to send and receive more than an HAProxy bufsize.
:param class httpclient: Is the manipulated HTTPClient.
:param table request: Is a table containing the parameters of the request that will be send.
:param string request.url: Is a mandatory parameter for the request that contains the URL.
:param string request.body: Is an optional parameter for the request that contains the body to send.
:param table request.headers: Is an optional parameter for the request that contains the headers to send.
:returns: Lua table containing the response
.. code-block:: lua
local httpclient = core.httpclient()
local response = httpclient:post{url="http://127.0.0.1", body=body}
..
.. code-block:: lua
response = {
status = 400,
reason = "Bad request",
headers = {
["content-type"] = { "text/html" },
["cache-control"] = { "no-cache", "no-store" },
},
body = "<html><body><h1>invalid request<h1></body></html>"
}
..
.. _txn_class:
TXN class