95 lines
2.5 KiB
JavaScript
95 lines
2.5 KiB
JavaScript
/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. */
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/******************************************************************************
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*
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* You may not use the identified files except in compliance with the Apache
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* License, Version 2.0 (the "License.")
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*
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* You may obtain a copy of the License at
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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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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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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* NAME
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* aqobject.js
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*
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* DESCRIPTION
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* Oracle Advanced Queuing (AQ) example passing an Oracle Database object
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*
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* Before running this, a queue allowing an Oracle Database object
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* payloads must be created, see
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* https://oracle.github.io/node-oracledb/doc/api.html#aqobjexample
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*
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* This example requires node-oracledb 4 or later.
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*
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* This example uses Node 8's async/await syntax.
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*
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*****************************************************************************/
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const oracledb = require('oracledb');
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const dbConfig = require('./dbconfig.js');
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const queueName = "ADDR_QUEUE";
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async function enq() {
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let connection;
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// The message to send.
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// The attributes correspond to the USER_ADDRESS_TYPE fields.
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const addrData = {
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NAME: "scott",
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ADDRESS: "The Kennel"
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};
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try {
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connection = await oracledb.getConnection(dbConfig);
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const queue = await connection.getQueue(queueName, {payloadType: "USER_ADDRESS_TYPE"});
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const message = new queue.payloadTypeClass(addrData);
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console.log('Enqueuing: ', addrData);
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await queue.enqOne(message);
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await connection.commit();
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} catch (err) {
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console.error(err);
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} finally {
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if (connection) {
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try {
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await connection.close();
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} catch (err) {
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console.error(err);
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}
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}
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}
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}
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async function deq() {
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let connection;
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try {
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connection = await oracledb.getConnection(dbConfig);
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const queue = await connection.getQueue(queueName, {payloadType: "USER_ADDRESS_TYPE"});
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const msg = await queue.deqOne(); // wait for a message
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await connection.commit();
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if (msg) {
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console.log('Dequeued: ', msg.payload);
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}
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} catch (err) {
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console.error(err);
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} finally {
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if (connection) {
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try {
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await connection.close();
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} catch (err) {
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console.error(err);
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}
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}
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}
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}
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enq();
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deq();
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