hapi with oacle node js driver

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'use strict';


const Hapi = require('hapi');
const oracledb = require('oracledb');

var dbConPool;

//gracefull shut down of node js since we need to terminate con pool

if (process.platform === "win32") {
    //since no SIGINT on win, watch for Ctl+C
    console.log('win platform...');
    var rl = require("readline").createInterface({
        input: process.stdin,
        output: process.stdout
    });

    rl.on("SIGINT", () => {
        console.log('received SIGINT 0..');
        process.emit("SIGINT");
    });
}

process.on("SIGINT", () => {
    console.log('received SIGINT..');
    if (dbConPool) {
        console.log('terminate pool..');
        dbConPool.terminate((e) => {
            if (e) {
                console.log(e);
            }
        });
    }

    process.exit();
});

// Create a server with a host and port
const server = new Hapi.Server();
server.connection({
    host: 'localhost',
    port: 8000
});


// Add the route
server.route({
    method: 'GET',
    path: '/hapi/employee',
    handler: (request, reply) => {

        dbConPool.getConnection(
            (err, connection) => {
                if (err) {
                    console.error(err.message);
                    return reply('error');
                }

                connection.execute(
                    "SELECT * from employees where rownum < 10", [],
                    (err, result) => {
                        releaseDbCon(connection);
                        if (err) {
                            console.error(err.message);
                            return reply('error');
                        }

                        var employees = [];
                        result.rows.forEach((r) => {
                            employees.push({
                                id: r[0],
                                firstName: r[1],
                                lastName: r[2],
                                email: r[3],
                                phoneNumber: r[4],
                                hireDate: r[5],
                                jobId: r[6],
                                salary: r[7]
                            });
                        });

                        return reply(employees);
                    });
            });


    }
});

function releaseDbCon(connection) {
    connection.release(
        (err) => {
            if (err) {
                console.error(err.message);
            }
        });
}

// Start the server
server.start((err) => {

    if (err) {
        throw err;
    }
    console.log('Server running at:', server.info.uri);

    //create db con pool
    oracledb.createPool({
            user: "hr",
            password: "password",
            connectString: "localhost:1521/xe"
        },
        (err, pool) => {
            if (!err) {
                dbConPool = pool;
            }
        });

});

npm install oracledb

npm install oracledb

Trying to install oracle node.js driver requires some effort. Since most of the github conversation on this issues are locked, i will describe it here, may be someone benefit.

My Environment

Windows 10 - 64 bit
Node.js 5.4.0 - 64 bit
Dot net framework 4.x
Visual Studio Community Edition 14
Oracle Xpress 11g 64 bit


Make sure all of your environment is either 64 bit or 32 bit, do not mix.


Prerequisites for oracledb

1- Python 2.7+
2- Dot net framework
3- Visual Studio C/C++ compiler

In win start menu type dev and open vs dev command prompt.
>cd "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC"
>vcvarsall amd64

--This will switch to vs 64 bit compiler

--set following local env variables. Since i have oracle xpress locally installed:

>set OCI_LIB_DIR=C:\oraclexe\app\oracle\product\11.2.0\server\oci\lib\MSVC
>set OCI_INC_DIR=C:\oraclexe\app\oracle\product\11.2.0\server\oci\include

>cd back-to-node-project-dir
>npm install oracledb

It should work!