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Commit 37c45a3b authored by Jacek Furmankiewicz's avatar Jacek Furmankiewicz
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docs for argument parsing

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corepost/routing.py
View file @ 37c45a3b
......@@ -12,15 +12,11 @@ from corepost.convert import convertForSerialization, generateXml
from corepost.filters import IRequestFilter, IResponseFilter
from enums import MediaType
from twisted.internet import reactor, defer
from twisted.internet import defer
from twisted.web.http import parse_qs
from twisted.web.resource import Resource
from twisted.web.server import Site, NOT_DONE_YET
from twisted.python import log
import re, copy, exceptions, json, yaml, logging
from xml.etree import ElementTree
from xml.etree.ElementTree import Element
from zope.interface.verify import verifyObject
class UrlRouter:
''' Common class for containing info related to routing a request to a function '''
......
corepost/test/arguments.py
View file @ 37c45a3b
......@@ -28,6 +28,10 @@ class ArgumentApp():
def postValidateCustom(self,request,rootId,childId,**kwargs):
return "%s - %s - %s" % (rootId,childId,kwargs)
@route("/formOrJson",Http.GET)
def getArgumentsByContentType(self,request,first,last,**kwargs):
return "%s %s" % (str(first),str(last))
@route("/formOrJson",(Http.POST,Http.PUT))
def postArgumentsByContentType(self,request,first,last,**kwargs):
return "%s %s" % (str(first),str(last))
......
corepost/test/feature/arguments.feature
View file @ 37c45a3b
......@@ -105,3 +105,9 @@ last: Gingrychnoya
| POST | 201 |
| PUT | 200 |
@arguments_by_type
Scenario: Parse query arguments for GET
Given 'arguments' is running
When as user 'None:None' I GET 'http://127.0.0.1:8082/formOrJson?first=John&last=Doe'
Then I expect HTTP code 200
And I expect content contains 'John Doe'
doc/build/html/_sources/async.txt
View file @ 37c45a3b
Asynchronous Operations
=================
=======================
@defer.inlineCallbacks support
-----------------------
------------------------------
If you want a deferred async method, just use *defer.returnValue()*::
......
doc/build/html/_sources/index.txt
View file @ 37c45a3b
......@@ -16,9 +16,11 @@ Features
:maxdepth: 4
url_routing
argument_parsing
arguments
content_types
filters
http_codes
async
modules
doc/build/html/_sources/url_routing.txt
View file @ 37c45a3b
......@@ -42,7 +42,7 @@ based on URL (with dynamic paths), HTTP method, expected content type, etc::
* http://twistedmatrix.com/documents/current/core/howto/tap.html
Path argument extraction
----------------
------------------------
CorePort can easily extract path arguments from an URL and convert them to the desired type.
......
doc/build/html/arguments.html
View file @ 37c45a3b
......@@ -27,7 +27,7 @@
<script type="text/javascript" src="_static/doctools.js"></script>
<link rel="top" title="CorePost 0.0.14 documentation" href="index.html" />
<link rel="next" title="Content types" href="content_types.html" />
<link rel="prev" title="URL Routing" href="url_routing.html" />
<link rel="prev" title="Argument parsing" href="argument_parsing.html" />
</head>
<body>
<div class="related">
......@@ -40,7 +40,7 @@
<a href="content_types.html" title="Content types"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="url_routing.html" title="URL Routing"
<a href="argument_parsing.html" title="Argument parsing"
accesskey="P">previous</a> |</li>
<li><a href="index.html">CorePost 0.0.14 documentation</a> &raquo;</li>
</ul>
......@@ -95,8 +95,8 @@ Validators can be specified using a <em>formencode</em> Schema object, or via cu
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h4>Previous topic</h4>
<p class="topless"><a href="url_routing.html"
title="previous chapter">URL Routing</a></p>
<p class="topless"><a href="argument_parsing.html"
title="previous chapter">Argument parsing</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="content_types.html"
title="next chapter">Content types</a></p>
......@@ -132,7 +132,7 @@ Validators can be specified using a <em>formencode</em> Schema object, or via cu
<a href="content_types.html" title="Content types"
>next</a> |</li>
<li class="right" >
<a href="url_routing.html" title="URL Routing"
<a href="argument_parsing.html" title="Argument parsing"
>previous</a> |</li>
<li><a href="index.html">CorePost 0.0.14 documentation</a> &raquo;</li>
</ul>
......
doc/build/html/async.html
View file @ 37c45a3b
......@@ -26,6 +26,7 @@
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<link rel="top" title="CorePost 0.0.14 documentation" href="index.html" />
<link rel="next" title="Modular REST applications" href="modules.html" />
<link rel="prev" title="HTTP codes" href="http_codes.html" />
</head>
<body>
......@@ -35,6 +36,9 @@
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="modules.html" title="Modular REST applications"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="http_codes.html" title="HTTP codes"
accesskey="P">previous</a> |</li>
......@@ -81,6 +85,9 @@
<h4>Previous topic</h4>
<p class="topless"><a href="http_codes.html"
title="previous chapter">HTTP codes</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="modules.html"
title="next chapter">Modular REST applications</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="_sources/async.txt"
......@@ -109,6 +116,9 @@
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="modules.html" title="Modular REST applications"
>next</a> |</li>
<li class="right" >
<a href="http_codes.html" title="HTTP codes"
>previous</a> |</li>
......
doc/build/html/http_codes.html
View file @ 37c45a3b
......@@ -27,7 +27,7 @@
<script type="text/javascript" src="_static/doctools.js"></script>
<link rel="top" title="CorePost 0.0.14 documentation" href="index.html" />
<link rel="next" title="Asynchronous Operations" href="async.html" />
<link rel="prev" title="Modular REST applications" href="modules.html" />
<link rel="prev" title="Filters" href="filters.html" />
</head>
<body>
<div class="related">
......@@ -40,7 +40,7 @@
<a href="async.html" title="Asynchronous Operations"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="modules.html" title="Modular REST applications"
<a href="filters.html" title="Filters"
accesskey="P">previous</a> |</li>
<li><a href="index.html">CorePost 0.0.14 documentation</a> &raquo;</li>
</ul>
......@@ -75,8 +75,8 @@
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h4>Previous topic</h4>
<p class="topless"><a href="modules.html"
title="previous chapter">Modular REST applications</a></p>
<p class="topless"><a href="filters.html"
title="previous chapter">Filters</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="async.html"
title="next chapter">Asynchronous Operations</a></p>
......@@ -112,7 +112,7 @@
<a href="async.html" title="Asynchronous Operations"
>next</a> |</li>
<li class="right" >
<a href="modules.html" title="Modular REST applications"
<a href="filters.html" title="Filters"
>previous</a> |</li>
<li><a href="index.html">CorePost 0.0.14 documentation</a> &raquo;</li>
</ul>
......
doc/build/html/index.html
View file @ 37c45a3b
......@@ -73,6 +73,14 @@
<li class="toctree-l2"><a class="reference internal" href="url_routing.html#routing-requests-by-incoming-content-type">Routing requests by incoming content type</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="argument_parsing.html">Argument parsing</a><ul>
<li class="toctree-l2"><a class="reference internal" href="argument_parsing.html#query-arguments">Query arguments</a></li>
<li class="toctree-l2"><a class="reference internal" href="argument_parsing.html#form-encoded-arguments">Form encoded arguments</a></li>
<li class="toctree-l2"><a class="reference internal" href="argument_parsing.html#json-document-arguments">JSON document arguments</a></li>
<li class="toctree-l2"><a class="reference internal" href="argument_parsing.html#yaml-document-arguments">YAML document arguments</a></li>
<li class="toctree-l2"><a class="reference internal" href="argument_parsing.html#xml-document-arguments">XML document arguments</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="arguments.html">Argument validation</a></li>
<li class="toctree-l1"><a class="reference internal" href="content_types.html">Content types</a><ul>
<li class="toctree-l2"><a class="reference internal" href="content_types.html#parsing-of-incoming-content">Parsing of incoming content</a></li>
......
doc/build/html/modules.html
View file @ 37c45a3b
......@@ -26,8 +26,7 @@
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<link rel="top" title="CorePost 0.0.14 documentation" href="index.html" />
<link rel="next" title="HTTP codes" href="http_codes.html" />
<link rel="prev" title="Argument validation" href="arguments.html" />
<link rel="prev" title="Asynchronous Operations" href="async.html" />
</head>
<body>
<div class="related">
......@@ -37,10 +36,7 @@
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="http_codes.html" title="HTTP codes"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="arguments.html" title="Argument validation"
<a href="async.html" title="Asynchronous Operations"
accesskey="P">previous</a> |</li>
<li><a href="index.html">CorePost 0.0.14 documentation</a> &raquo;</li>
</ul>
......@@ -184,11 +180,8 @@ and it takes care of routing the request to the appropriate class.</p>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h4>Previous topic</h4>
<p class="topless"><a href="arguments.html"
title="previous chapter">Argument validation</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="http_codes.html"
title="next chapter">HTTP codes</a></p>
<p class="topless"><a href="async.html"
title="previous chapter">Asynchronous Operations</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="_sources/modules.txt"
......@@ -218,10 +211,7 @@ and it takes care of routing the request to the appropriate class.</p>
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="http_codes.html" title="HTTP codes"
>next</a> |</li>
<li class="right" >
<a href="arguments.html" title="Argument validation"
<a href="async.html" title="Asynchronous Operations"
>previous</a> |</li>
<li><a href="index.html">CorePost 0.0.14 documentation</a> &raquo;</li>
</ul>
......
doc/build/html/searchindex.js
View file @ 37c45a3b
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doc/build/html/url_routing.html
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......@@ -26,7 +26,7 @@
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......@@ -37,7 +37,7 @@
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......@@ -153,8 +153,8 @@ In a real production application you would use existing Twisted <em>twistd</em>
<p class="topless"><a href="intro.html"
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......@@ -184,7 +184,7 @@ In a real production application you would use existing Twisted <em>twistd</em>
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>index</a></li>
<li class="right" >
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<a href="intro.html" title="Introduction"
......
doc/build/latex/CorePost.aux
View file @ 37c45a3b
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\newlabel{async:defer-inlinecallbacks-support}{{2.7.1}{8}{@defer.inlineCallbacks support\relax }{subsection.2.7.1}{}}
\@writefile{toc}{\contentsline {section}{\numberline {2.8}Modular REST applications}{9}{section.2.8}}
\newlabel{modules::doc}{{2.8}{9}{Modular REST applications\relax }{section.2.8}{}}
\newlabel{modules:modular-rest-applications}{{2.8}{9}{Modular REST applications\relax }{section.2.8}{}}
doc/build/latex/CorePost.log
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Output written on CorePost.pdf (15 pages, 149329 bytes).
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doc/build/latex/CorePost.out
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......@@ -2,9 +2,10 @@
\BOOKMARK [1][-]{section.1.1}{Introduction}{chapter.1}
\BOOKMARK [0][-]{chapter.2}{Features}{}
\BOOKMARK [1][-]{section.2.1}{URL Routing}{chapter.2}
\BOOKMARK [1][-]{section.2.2}{Argument validation}{chapter.2}
\BOOKMARK [1][-]{section.2.3}{Content types}{chapter.2}
\BOOKMARK [1][-]{section.2.4}{Filters}{chapter.2}
\BOOKMARK [1][-]{section.2.5}{HTTP codes}{chapter.2}
\BOOKMARK [1][-]{section.2.6}{Asynchronous Operations}{chapter.2}
\BOOKMARK [1][-]{section.2.7}{Modular REST applications}{chapter.2}
\BOOKMARK [1][-]{section.2.2}{Argument parsing}{chapter.2}
\BOOKMARK [1][-]{section.2.3}{Argument validation}{chapter.2}
\BOOKMARK [1][-]{section.2.4}{Content types}{chapter.2}
\BOOKMARK [1][-]{section.2.5}{Filters}{chapter.2}
\BOOKMARK [1][-]{section.2.6}{HTTP codes}{chapter.2}
\BOOKMARK [1][-]{section.2.7}{Asynchronous Operations}{chapter.2}
\BOOKMARK [1][-]{section.2.8}{Modular REST applications}{chapter.2}
doc/build/latex/CorePost.tex
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......@@ -13,7 +13,7 @@
\title{CorePost Documentation}
\date{March 08, 2012}
\date{March 19, 2012}
\release{0.0.14}
\author{Jacek Furmankiewicz}
\newcommand{\sphinxlogo}{}
......@@ -298,6 +298,100 @@ Based on the incoming content type in POST/PUT requests, the \emph{same} URL can
\end{Verbatim}
\section{Argument parsing}
\label{argument_parsing::doc}\label{argument_parsing:argument-parsing}
CorePost can automatically parse query arguments, form arguments, as well as basic JSON, YAML and XML documents
and extract those as direct arguments to a REST router method.
Let's say we have a basic method that responds to GET, POST and PUT requests.
It expects a first name and last name and outputs them back in the response:
\begin{Verbatim}[commandchars=\\\{\}]
\PYG{n+nd}{@router}\PYG{p}{(}\PYG{l+s}{"}\PYG{l+s}{/name}\PYG{l+s}{"}\PYG{p}{,}\PYG{p}{(}\PYG{n}{Http}\PYG{o}{.}\PYG{n}{GET}\PYG{p}{,}\PYG{n}{Http}\PYG{o}{.}\PYG{n}{POST}\PYG{p}{,}\PYG{n}{Http}\PYG{o}{.}\PYG{n}{PUT}\PYG{p}{)}\PYG{p}{)}
\PYG{k}{def} \PYG{n+nf}{getName}\PYG{p}{(}\PYG{n+nb+bp}{self}\PYG{p}{,}\PYG{n}{request}\PYG{p}{,}\PYG{n}{first}\PYG{p}{,}\PYG{n}{last}\PYG{p}{,}\PYG{o}{*}\PYG{o}{*}\PYG{n}{kwargs}\PYG{p}{)}\PYG{p}{:}
\PYG{k}{return} \PYG{l+s}{"}\PYG{l+s+si}{\PYGZpc{}s}\PYG{l+s}{ }\PYG{l+s+si}{\PYGZpc{}s}\PYG{l+s}{"} \PYG{o}{\PYGZpc{}} \PYG{p}{(}\PYG{n}{first}\PYG{p}{,} \PYG{n}{last}\PYG{p}{)}
\end{Verbatim}
\subsection{Query arguments}
\label{argument_parsing:query-arguments}
For GET requests, the query arguments will be automatically parsed, e.g.:
\begin{Verbatim}[commandchars=\\\{\}]
curl http://127.0.0.1/name?first=John\&last=Doe
\end{Verbatim}
\subsection{Form encoded arguments}
\label{argument_parsing:form-encoded-arguments}
For POST/PUT requests, any form-encoded arguments will be automatically parsed, e.g.:
\begin{Verbatim}[commandchars=\\\{\}]
curl -X POST http://localhost/name -d "first=John\&last=Doe"
\end{Verbatim}
\subsection{JSON document arguments}
\label{argument_parsing:json-document-arguments}
For the same method, you could just post a JSON document instead that looks like this:
\begin{Verbatim}[commandchars=\\\{\}]
\PYG{p}{\PYGZob{}}\PYG{l+s}{"}\PYG{l+s}{first}\PYG{l+s}{"}\PYG{p}{:}\PYG{l+s}{"}\PYG{l+s}{John}\PYG{l+s}{"}\PYG{p}{,}\PYG{l+s}{"}\PYG{l+s}{last}\PYG{l+s}{"}\PYG{p}{:}\PYG{l+s}{"}\PYG{l+s}{Doe}\PYG{l+s}{"}\PYG{p}{\PYGZcb{}}
\end{Verbatim}
CorePost will automatically pass all the root elements of the document as arguments into a method.
Requires the \emph{`application/json'} content type to be passed.
\subsection{YAML document arguments}
\label{argument_parsing:yaml-document-arguments}
For the same method, you could just post a YAML document that looks like this:
\begin{Verbatim}[commandchars=\\\{\}]
first:John
last:Doe
\end{Verbatim}
CorePost will automatically pass all the root elements of the document as arguments into a method.
Requires the \emph{`text/yaml'} content type to be passed.
\subsection{XML document arguments}
\label{argument_parsing:xml-document-arguments}
XML documents are supported as well. In that case, CorePost will first parse all the attributes on the root node
and then all of the children underneath the main root node.
Hence all of the XML formats below are valid and would generate the same parameters to a method.
Attributes only:
\begin{Verbatim}[commandchars=\\\{\}]
\textless{}root first="John" last="Doe"/\textgreater{}
\end{Verbatim}
Mix of attributes and child nodes:
\begin{Verbatim}[commandchars=\\\{\}]
\textless{}root first="John"\textgreater{}
\textless{}last\textgreater{}Doe\textless{}/last\textgreater{}
\textless{}/root\textgreater{}
\end{Verbatim}
Child nodes only:
\begin{Verbatim}[commandchars=\\\{\}]
\textless{}root\textgreater{}
\textless{}first\textgreater{}John\textless{}/first\textgreater{}
\textless{}last\textgreater{}Doe\textless{}/last\textgreater{}
\textless{}/root\textgreater{}
\end{Verbatim}
Requires the \emph{`text/xml'} OR \emph{`application/xml'} content type to be passed.
As you can see from the examples above, a single CorePost router method can handle all these varied forms of argument parsing
for you without any additional effort.
\section{Argument validation}
\label{arguments:argument-validation}\label{arguments::doc}
CorePost integrates the popular `formencode' package to implement form and query argument validation.
......
doc/build/latex/CorePost.toc
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......@@ -10,12 +10,18 @@
\contentsline {subsection}{\numberline {2.1.1}@route decorator}{3}{subsection.2.1.1}
\contentsline {subsection}{\numberline {2.1.2}Path argument extraction}{4}{subsection.2.1.2}
\contentsline {subsection}{\numberline {2.1.3}Routing requests by incoming content type}{4}{subsection.2.1.3}
\contentsline {section}{\numberline {2.2}Argument validation}{4}{section.2.2}
\contentsline {section}{\numberline {2.3}Content types}{5}{section.2.3}
\contentsline {subsection}{\numberline {2.3.1}Parsing of incoming content}{5}{subsection.2.3.1}
\contentsline {subsection}{\numberline {2.3.2}Converting Python objects to expected content type}{5}{subsection.2.3.2}
\contentsline {section}{\numberline {2.4}Filters}{6}{section.2.4}
\contentsline {section}{\numberline {2.5}HTTP codes}{7}{section.2.5}
\contentsline {section}{\numberline {2.6}Asynchronous Operations}{7}{section.2.6}
\contentsline {subsection}{\numberline {2.6.1}@defer.inlineCallbacks support}{7}{subsection.2.6.1}
\contentsline {section}{\numberline {2.7}Modular REST applications}{7}{section.2.7}
\contentsline {section}{\numberline {2.2}Argument parsing}{4}{section.2.2}
\contentsline {subsection}{\numberline {2.2.1}Query arguments}{4}{subsection.2.2.1}
\contentsline {subsection}{\numberline {2.2.2}Form encoded arguments}{5}{subsection.2.2.2}
\contentsline {subsection}{\numberline {2.2.3}JSON document arguments}{5}{subsection.2.2.3}
\contentsline {subsection}{\numberline {2.2.4}YAML document arguments}{5}{subsection.2.2.4}
\contentsline {subsection}{\numberline {2.2.5}XML document arguments}{5}{subsection.2.2.5}
\contentsline {section}{\numberline {2.3}Argument validation}{6}{section.2.3}
\contentsline {section}{\numberline {2.4}Content types}{6}{section.2.4}
\contentsline {subsection}{\numberline {2.4.1}Parsing of incoming content}{6}{subsection.2.4.1}
\contentsline {subsection}{\numberline {2.4.2}Converting Python objects to expected content type}{7}{subsection.2.4.2}
\contentsline {section}{\numberline {2.5}Filters}{7}{section.2.5}
\contentsline {section}{\numberline {2.6}HTTP codes}{8}{section.2.6}
\contentsline {section}{\numberline {2.7}Asynchronous Operations}{8}{section.2.7}
\contentsline {subsection}{\numberline {2.7.1}@defer.inlineCallbacks support}{8}{subsection.2.7.1}
\contentsline {section}{\numberline {2.8}Modular REST applications}{9}{section.2.8}
doc/source/argument_parsing.rst 0 → 100644
View file @ 37c45a3b
Argument parsing
===================
CorePost can automatically parse query arguments, form arguments, as well as basic JSON, YAML and XML documents
and extract those as direct arguments to a REST router method.
Let's say we have a basic method that responds to GET, POST and PUT requests.
It expects a first name and last name and outputs them back in the response::
@router("/name",(Http.GET,Http.POST,Http.PUT))
def getName(self,request,first,last,**kwargs):
return "%s %s" % (first, last)
Query arguments
---------------
For GET requests, the query arguments will be automatically parsed, e.g.::
curl http://127.0.0.1/name?first=John&last=Doe
Form encoded arguments
----------------------
For POST/PUT requests, any form-encoded arguments will be automatically parsed, e.g.::
curl -X POST http://localhost/name -d "first=John&last=Doe"
JSON document arguments
-----------------------
For the same method, you could just post a JSON document instead that looks like this::
{"first":"John","last":"Doe"}
CorePost will automatically pass all the root elements of the document as arguments into a method.
Requires the *'application/json'* content type to be passed.
YAML document arguments
-----------------------
For the same method, you could just post a YAML document that looks like this::
first:John
last:Doe
CorePost will automatically pass all the root elements of the document as arguments into a method.
Requires the *'text/yaml'* content type to be passed.
XML document arguments
----------------------
XML documents are supported as well. In that case, CorePost will first parse all the attributes on the root node
and then all of the children underneath the main root node.
Hence all of the XML formats below are valid and would generate the same parameters to a method.
Attributes only::
<root first="John" last="Doe"/>
Mix of attributes and child nodes::
<root first="John">
<last>Doe</last>
</root>
Child nodes only::
<root>
<first>John</first>
<last>Doe</last>
</root>
Requires the *'text/xml'* OR *'application/xml'* content type to be passed.
As you can see from the examples above, a single CorePost router method can handle all these varied forms of argument parsing
for you without any additional effort.
doc/source/index.rst
View file @ 37c45a3b
......@@ -16,9 +16,11 @@ Features
:maxdepth: 4
url_routing
argument_parsing
arguments
content_types
filters
http_codes
async
modules
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