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

<!--
  Copyright JS Foundation and other contributors, http://js.foundation

  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 request">
    <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%;">
        <option value="GET">GET</option>
        <option value="POST">POST</option>
        <option value="PUT">PUT</option>
        <option value="DELETE">DELETE</option>
        <option value="use" data-i18n="httpin.setby"></option>
        </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>
        <input id="node-input-url" type="text" placeholder="http://">
    </div>

    <div class="form-row">
        <input type="checkbox" id="node-input-usetls" style="display: inline-block; width: auto; vertical-align: top;">
        <label for="node-input-usetls" style="width: auto" data-i18n="httpin.use-tls"></label>
        <div id="node-row-tls" class="hide">
            <label style="width: auto; margin-left: 20px; margin-right: 10px;" for="node-input-tls"><span data-i18n="httpin.tls-config"></span></label><input type="text" style="width: 300px" id="node-input-tls">
        </div>
    </div>

    <div class="form-row">
        <input type="checkbox" id="node-input-useAuth" style="display: inline-block; width: auto; vertical-align: top;">
        <label for="node-input-useAuth" style="width: 70%;"><span data-i18n="httpin.basicauth"></span></label>
        <div style="margin-left: 20px" class="node-input-useAuth-row hide">
            <div class="form-row">
                <label for="node-input-user"><i class="fa fa-user"></i> <span data-i18n="common.label.username"></span></label>
                <input type="text" id="node-input-user">
            </div>
            <div class="form-row">
                <label for="node-input-password"><i class="fa fa-lock"></i> <span data-i18n="common.label.password"></span></label>
                <input type="password" id="node-input-password">
            </div>
        </div>
    </div>


    <div class="form-row">
        <label for="node-input-ret"><i class="fa fa-arrow-left"></i> <span data-i18n="httpin.label.return"></span></label>
        <select type="text" id="node-input-ret" style="width:70%;">
        <option value="txt" data-i18n="httpin.utf8"></option>
        <option value="bin" data-i18n="httpin.binary"></option>
        <option value="obj" data-i18n="httpin.json"></option>
        </select>
    </div>
    
    <div class="form-row">
        <input type="checkbox" id="node-input-throttling" style="display: inline-block; width: auto; vertical-align: top;">
        <label for="node-input-throttling" style="width: 70%;"><span data-i18n="httpin.throttling"></span></label>
        <div style="margin-left: 20px" class="node-input-throttling-row hide">
            <div class="form-row">
                <label for="node-input-interval"><i class="fa fa-clock-o"></i> <span data-i18n="httpin.interval"></span></label>
                <input type="text" id="node-input-interval">
            </div>
        </div>
    </div>
    
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
        <input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">
    </div>
    <div class="form-tips" id="tip-json" hidden><span data-i18n="httpin.tip.req"></span></div>
</script>

<script type="text/x-red" data-help-name="http request">
    <p>Provides a node for making http requests.</p>
    <p>The URL and HTTP method can be configured in the node, if they are left blank they should be set in an incoming message on <code>msg.url</code> and <code>msg.method</code>:</p>
    <ul>
        <li><code>url</code>, if set, is used as the url of the request. Must start with http: or https:</li>
        <li><code>method</code>, if set, is used as the HTTP method of the request.
        Must be one of <code>GET</code>, <code>PUT</code>, <code>POST</code>, <code>PATCH</code> or <code>DELETE</code> (default: GET)</li>
        <li><code>headers</code>, if set, should be an object containing field/value
        pairs to be added as request headers</li>
        <li><code>payload</code> is sent as the body of the request</li>
    </ul>
    <p>When configured within the node, the URL property can contain <a href="http://mustache.github.io/mustache.5.html" target="_blank">mustache-style</a> tags. These allow the
    url to be constructed using values of the incoming message. For example, if the url is set to
    <code>example.com/{{{topic}}}</code>, it will have the value of <code>msg.topic</code> automatically inserted.
    Using {{{...}}} prevents mustache from escaping characters like / & etc.</p>
    <p>
    The output message contains the following properties:
    <ul>
        <li><code>payload</code> is the body of the response</li>
        <li><code>statusCode</code> is the status code of the response, or the error code if the request could not be completed</li>
        <li><code>headers</code> is an object containing the response headers</li>
        <li><code>responseUrl</code> is the url of the server that responds</li>
    </ul>
    <p>The <b>interval</b> can be specified for (multipart) streams, to limit the number parts received: this is the number of milliseconds between parts in the stream.</p>
    <p><b>Note</b>: If you need to configure a proxy please add <b>http_proxy=...</b> to your environment variables and restart Node-RED.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('http request',{
        category: 'function',
        color:"rgb(231, 231, 174)",
        defaults: {
            name: {value:""},
            method:{value:"GET"},
            ret: {value:"txt"},
            url:{value:""},
            tls: {type:"tls-config",required: false},
            throttling: {value:0}
        },
        credentials: {
            user: {type:"text"},
            password: {type: "password"}
        },
        inputs:1,
        outputs:1,
        icon: "white-globe.png",
        label: function() {
            return this.name||this._("httpin.httpreq");
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        },
        oneditprepare: function() {
            $("#node-input-useAuth").change(function() {
                if ($(this).is(":checked")) {
                    $(".node-input-useAuth-row").show();
                } else {
                    $(".node-input-useAuth-row").hide();
                    $('#node-input-user').val('');
                    $('#node-input-password').val('');
                }
            });
            if (this.credentials.user || this.credentials.has_password) {
                $('#node-input-useAuth').prop('checked', true);
            } else {
                $('#node-input-useAuth').prop('checked', false);
            }
            $("#node-input-useAuth").change();
            
            $("#node-input-throttling").change(function() {
                if ($(this).is(":checked")) {
                    $(".node-input-throttling-row").show();
                } else {
                    $(".node-input-throttling-row").hide();
                    $('#node-input-interval').val('0');
                }
            });
            if (this.interval) {
                $('#node-input-throttling').prop('checked', true);
            } else {
                $('#node-input-throttling').prop('checked', false);
            }
            $("#node-input-throttling").change();

            function updateTLSOptions() {
                if ($("#node-input-usetls").is(':checked')) {
                    $("#node-row-tls").show();
                } else {
                    $("#node-row-tls").hide();
                }
            }
            if (this.tls) {
                $('#node-input-usetls').prop('checked', true);
            } else {
                $('#node-input-usetls').prop('checked', false);
            }
            updateTLSOptions();
            $("#node-input-usetls").on("click",function() {
                updateTLSOptions();
            });
            $("#node-input-ret").change(function() {
                if ($("#node-input-ret").val() === "obj") {
                    $("#tip-json").show();
                } else {
                    $("#tip-json").hide();
                }
            });
        },
        oneditsave: function() {
            if (!$("#node-input-usetls").is(':checked')) {
                $("#node-input-tls").val("_ADD_");
            }
        }
    });
</script>