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node-red/nodes/core/parsers/70-YAML.js

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module.exports = function(RED) {
"use strict";
var yaml = require('js-yaml');
function YAMLNode(n) {
RED.nodes.createNode(this,n);
this.property = n.property||"payload";
var node = this;
this.on("input", function(msg) {
var value = RED.util.getMessageProperty(msg,node.property);
if (value !== undefined) {
if (typeof value === "string") {
try {
value = yaml.load(value);
RED.util.setMessageProperty(msg,node.property,value);
node.send(msg);
}
catch(e) { node.error(e.message,msg); }
}
else if (typeof value === "object") {
if (!Buffer.isBuffer(value)) {
try {
value = yaml.dump(value);
RED.util.setMessageProperty(msg,node.property,value);
node.send(msg);
}
catch(e) {
node.error(RED._("yaml.errors.dropped-error"));
}
}
else { node.warn(RED._("yaml.errors.dropped-object")); }
}
else { node.warn(RED._("yaml.errors.dropped")); }
}
else { node.send(msg); } // If no payload - just pass it on.
});
}
RED.nodes.registerType("yaml",YAMLNode);
};