mirror of https://github.com/node-red/node-red.git
49 lines
1.8 KiB
JavaScript
49 lines
1.8 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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module.exports = function(RED) {
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"use strict";
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function JSONNode(n) {
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RED.nodes.createNode(this,n);
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var node = this;
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this.on("input", function(msg) {
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if (msg.hasOwnProperty("payload")) {
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if (typeof msg.payload === "string") {
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try {
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msg.payload = JSON.parse(msg.payload);
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node.send(msg);
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}
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catch(e) { node.error(e.message,msg); }
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}
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else if (typeof msg.payload === "object") {
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if (!Buffer.isBuffer(msg.payload)) {
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try {
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msg.payload = JSON.stringify(msg.payload);
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node.send(msg);
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}
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catch(e) { node.error(RED._("json.errors.dropped-error")); }
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}
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else { node.warn(RED._("json.errors.dropped-object")); }
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}
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else { node.warn(RED._("json.errors.dropped")); }
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}
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else { node.send(msg); } // If no payload - just pass it on.
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});
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}
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RED.nodes.registerType("json",JSONNode);
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}
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