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node-red/nodes/core/parsers/70-JSON.js
Scott Yoshizawa 2fe859b111 NLS Core nodes
NLS exec node

NLS function/temple/delay nodes

NLS function/template/delay/trigger/comment nodes

NLS io nodes (mqtt/httpin/websocket/watch/serial)

NLS messages.json for tcpin

NLS io nodes (tcpin & udp half)

NLS io nodes (udp)

NLS logic nodes (switch/change)

NLS logic (range) and parsers (csv&html) nodes

NLS parser nodes (json/xml)

NLS test case update for logic/parsers

NLS analysis and hardware nodes

NLS storage nodes (file/redisout/mongodb) and test

NLS storage node (tail)

NLS social nodes (feedparse/email/irc)

NLS socal node (twitter half change)

NLS social node (twitter) and core node (unknown)
2015-07-02 10:46:57 +01:00

47 lines
1.7 KiB
JavaScript

/**
* Copyright 2014 IBM Corp.
*
* 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.
**/
module.exports = function(RED) {
"use strict";
var util = require("util");
function JSONNode(n) {
RED.nodes.createNode(this,n);
var node = this;
this.on("input", function(msg) {
if (msg.hasOwnProperty("payload")) {
if (typeof msg.payload === "string") {
try {
msg.payload = JSON.parse(msg.payload);
node.send(msg);
}
catch(e) { node.error(e.message,msg); }
}
else if (typeof msg.payload === "object") {
if ((!Buffer.isBuffer(msg.payload)) && (!util.isArray(msg.payload))) {
msg.payload = JSON.stringify(msg.payload);
node.send(msg);
}
else { node.warn(RED._("json.errors.dropped")+": "+msg.payload); }
}
else { node.warn(RED._("json.errors.dropped")+": "+msg.payload); }
}
else { node.send(msg); } // If no payload - just pass it on.
});
}
RED.nodes.registerType("json",JSONNode);
}