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node-red-nodes/storage/ddb/69-ddbout.js

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/**
* Copyright 2013 Wolfgang Nagele
*
* 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.
**/
var RED = require(process.env.NODE_RED_HOME+"/red/red");
var util = require("util");
var aws = require("aws-sdk");
var attrWrapper = require("dynamodb-data-types").AttributeValue;
function DDBOutNode(n) {
RED.nodes.createNode(this, n);
this.credentials = RED.nodes.getNode(n.credentials);
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this.region = n.region || "us-east-1";
this.table = n.table;
aws.config.update({ accessKeyId: this.credentials.accessKey,
secretAccessKey: this.credentials.secretAccessKey,
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region: this.region });
var ddb = new aws.DynamoDB();
this.on("input", function(msg) {
if (msg != null) {
ddb.putItem({ "TableName": this.table,
"Item": attrWrapper.wrap(msg.payload) },
function(err, data) {
if (err) { util.log(err); }
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});
}
});
}
RED.nodes.registerType("ddb out", DDBOutNode);