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node-red/nodes/core/io/21-httpin.html

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<!--
Copyright 2013, 2016 IBM Corp.
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Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-template-name="http in">
<div class="form-row">
<label for="node-input-method"><i class="fa fa-tasks"></i> <span data-i18n="httpin.label.method"></span></label>
<select type="text" id="node-input-method" style="width:70%;">
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<option value="get">GET</option>
<option value="post">POST</option>
<option value="put">PUT</option>
<option value="delete">DELETE</option>
<option value="patch">PATCH</option>
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</select>
</div>
<div class="form-row">
<label for="node-input-url"><i class="fa fa-globe"></i> <span data-i18n="httpin.label.url"></span></label>
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<input type="text" id="node-input-url" placeholder="/url">
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</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
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<input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">
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</div>
<div class="form-row row-swagger-doc">
<label for="node-input-swaggerDoc"><i class="fa fa-file-text-o"></i> <span data-i18n="httpin.label.doc"></span></label>
<input type="text" id="node-input-swaggerDoc">
</div>
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<div id="node-input-tip" class="form-tips"><span data-i18n="httpin.tip.in"></span><code><span id="node-input-path"></span></code>.</div>
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</script>
<script type="text/x-red" data-help-name="http in">
<p>Provides an input node for http requests, allowing the creation of simple web services.</p>
<p>The resulting message has the following properties:
<ul>
<li>msg.req : <a href="http://expressjs.com/api.html#req">http request</a></li>
<li>msg.res : <a href="http://expressjs.com/api.html#res">http response</a></li>
</ul>
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</p>
<p>For POST/PUT requests, the body is available under <code>msg.req.body</code>. This
uses the <a href="http://expressjs.com/api.html#bodyParser">Express bodyParser middleware</a> to parse the content to a JSON object.
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</p>
<p>
By default, this expects the body of the request to be url encoded:
<pre>foo=bar&amp;this=that</pre>
</p>
<p>
To send JSON encoded data to the node, the content-type header of the request must be set to
<code>application/json</code>.
</p>
<p>
<b>Note: </b>This node does not send any response to the http request.
This should be done with a subsequent HTTP Response node.
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</p>
</script>
<script type="text/x-red" data-template-name="http response">
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<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
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<input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">
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</div>
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<div class="form-tips"><span data-i18n="[html]httpin.tip.res"></span></div>
</script>
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<script type="text/x-red" data-help-name="http response">
<p>Sends responses back to http requests received from an HTTP Input node.</p>
<p>The response can be customised using the following message properties:</p>
<ul>
<li><code>payload</code> is sent as the body of the response</li>
<li><code>statusCode</code>, if set, is used as the response status code (default: 200)</li>
<li><code>headers</code>, if set, should be an object containing field/value
pairs to be added as response headers.</li>
<li><code>cookies</code>, if set, can be used to set or delete cookies.
</ul>
<h3>Cookie handling</h3>
<p>The <code>cookies</code> property must be an object of name/value pairs.
The value can be either a string to set the value of the cookie with default
options, or it can be an object of options.<p>
<p>The following example sets two cookies - one called <code>name</code> with
a value of <code>nick</code>, the other called <code>session</code> with a
value of <code>1234</code> and an expiry set to 15 minutes.</p>
<pre>
msg.cookies = {
name: 'nick',
session: {
value: '1234',
maxAge: 900000
}
}</pre>
<p>The valid options include:</p>
<ul>
<li><code>domain</code> - (String) domain name for the cookie</li>
<li><code>expires</code> - (Date) expiry date in GMT. If not specified or set to 0, creates a session cookie</li>
<li><code>maxAge</code> - (String) expiry date as relative to the current time in milliseconds</li>
<li><code>path</code> - (String) path for the cookie. Defaults to /</li>
<li><code>value</code> - (String) the value to use for the cookie</li>
</ul>
<p>To delete a cookie, set its <code>value</code> to <code>null</code>.</p>
</script>
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<script type="text/javascript">
RED.nodes.registerType('http in',{
category: 'input',
color:"rgb(231, 231, 174)",
defaults: {
name: {value:""},
url: {value:"",required:true},
method: {value:"get",required:true},
swaggerDoc: {type:"swagger-doc", required:false}
},
inputs:0,
outputs:1,
icon: "white-globe.png",
label: function() {
if (this.name) {
return this.name;
} else if (this.url) {
var root = RED.settings.httpNodeRoot;
if (root.slice(-1) != "/") {
root = root+"/";
}
if (this.url.charAt(0) == "/") {
root += this.url.slice(1);
} else {
root += this.url;
}
return "["+this.method+"] "+root;
} else {
return "http";
}
},
labelStyle: function() {
return this.name?"node_label_italic":"";
},
oneditprepare: function() {
var root = RED.settings.httpNodeRoot;
if (root.slice(-1) == "/") {
root = root.slice(0,-1);
}
if (root == "") {
$("#node-input-tip").hide();
} else {
$("#node-input-path").html(root);
$("#node-input-tip").show();
}
if(!RED.nodes.getType("swagger-doc")){
$('.row-swagger-doc').hide();
}
}
});
RED.nodes.registerType('http response',{
category: 'output',
color:"rgb(231, 231, 174)",
defaults: {
name: {value:""}
},
inputs:1,
outputs:0,
align: "right",
icon: "white-globe.png",
label: function() {
return this.name||"http";
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
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</script>