Oracle Storage Adapter for Parse Server

This document describes how to build and run Parse Server with the new Oracle storage adapter based on the Oracle NodeJS libraries. It will demonstrate running against the Free Oracle Database 23ai Docker container and the JSON Autonomoumous database in the cloud.

Prerequisites

The Oracle SQL client is a software application that allows users to connect to an Oracle database and execute queries and manage the database.

SQL Client

The Oracle Instant Client is a set of software libraries that allow users to connect to an Oracle database without a full Oracle database installation.

Instant Client Libraries

Installation

Clone Parse Server Repository. Supported version 7.3.0-alpha.7 and above.

There were changes in this release that supported:

1. Test Exclusion List
2. Dynamic Database Adapter configuration

git clone --depth 1 --branch 7.3.0-alpha.7 https://github.com/parse-community/parse-server.git
cd parse-server

2. Clone this Oracle Samples repo into src/Adapters/Storage/Oracle

cd src/Adapters/Storage
git clone https://github.com/oracle-samples/oracleadapter-parse.git Oracle
cd Oracle
rm -rf .git    # IMPORTANT or build will fail
cd ../../../.. # Go back to Project Root

Getting Started

Building Parse with Oracle Storage Adpater

1. Add the Oracle database dependency

   npm install oracledb@6.5.0
   

   Quick Start node-oracledb Installation

2. Add the Parse File Adapter dependency

   npm install --save @parse/fs-files-adapter
   

   This defaults to local storage.

   Parse Server File Storage Adapter Repository

3. Run

   npm ci
   

   to build the server

How To Run

Configuring Free23c Oracle database image

1. Get and Start the image

   docker run --name free23ai -d -p 1521:1521 -e ORACLE_PWD=Welcome12345 container-registry.oracle.com/database/free:latest
   

   It takes about a minute for the image to reach a healthy state on my MacBook

2. Connect to the image as sysdba

   sql sys/Welcome12345@localhost:1521/freepdb1 as sysdba @./soda
   

   and run the following commands to enable JSON support

   alter session set container=FREEPDB1;
   grant db_developer_role to pdbadmin;
   grant soda_app to pdbadmin;
   GRANT UNLIMITED TABLESPACE TO pdbadmin;
   quit;
   

   or run the commands as a script. Create a file called soda that contains the above commands

   sql sys/Welcome12345@localhost:1521/freepdb1 as sysdba @./soda
   

Run Parse Server

1. Create a config.json. This is a minimal set of configuration parameters for booting the server. The databaseURI is configured to attach to the local 23c Oracle Database instance.

{
  "appId": "APPLICATION_ID",
  "masterKey": "MASTER_KEY",
  "allowClientClassCreation": true,
  "port": 1338,
  "logLevel": "info",
  "verbose": false,
  "mountGraphQL": true,
  "mountPlayground": true,
  "graphQLPath": "/graphql",
  "filesAdapter": {
    "module": "@parse/fs-files-adapter"
  },
  "databaseAdapter": {
    "module": "./Storage/Oracle/OracleStorageAdapter",
    "options": {
      "databaseURI": "oracledb://pdbadmin:Welcome12345@localhost:1521/freepdb1",
      "collectionPrefix": ""
    }
  }
}  

2. If using an Oracle Instant Client prior to 23ai. I am running on MacOS Intel and the most recent Instant Client for that platform is 19_16 so export the variable below.

export ORACLEDB_VERSION=19

3. Boot the Server using the Oracle Instant Client location

ORACLE_CLIENT_LOCATION=/Users/myuser/instantclient_19_16  npm start -- ./config.json

Test the Local Stack

1. Run a curl command

   curl -X POST -H "X-Parse-Application-Id: APPLICATION_ID" -H "Content-Type: application/json" -d '{"score":12,"playerName":"scooby","cheatmode":false}' http://localhost:1338/parse/classes/GameScore
   

   Upon success

   {"objectId":"CdmLJT6Duc","createdAt":"2023-10-16T19:33:27.382Z"}
   

2. Connect to the database and verify

   sql pdbadmin/Welcome12345@localhost:1521/FREEPDB1
   

3. Run SODA commands

   SQL> soda list
   List of collections:
   
   GameScore
   _Hooks
   _Idempotency
   _Role
   _SCHEMA
   _User
   
   SQL> soda get GameScore
   KEY						                Created On
   
   3A8CB47A41A74F59BFDD143A3F365F4A		2023-10-16T19:33:27.404374000Z
   
   1 row selected. 
   
   SQL> soda get GameScore -k 3A8CB47A41A74F59BFDD143A3F365F4A
   
   Key:    	 3A8CB47A41A74F59BFDD143A3F365F4A
   Content:	 {"score":12,"playerName":"scooby","cheatmode":false,"updatedAt":"2023-10-16T19:33:27.382Z","createdAt":"2023-10-16T19:33:27.382Z","_id":"CdmLJT6Duc"}
   
   1 row selected. 
   
   
    soda help – list all soda commands
   
   

Running against Autonomous Database in the cloud

1. Update databaseAdapter.options.databaseURI in config.json to point at the cloud database instance

   "databaseURI": "oracledb://username:password@tnsname",
   

2. Download the cloud database wallet and use it when starting the server

   ORACLE_CLIENT_LOCATION=/Users/myuser/instantclient_19_16 ORACLE_WALLET_LOCATION=/Users/myuser/wallet-oradb  npm start -- ./config.json
   

Cloud Code

Use Cloud Code to call Custom Oracle PL/SQL

Contributing

This project welcomes contributions from the community. Before submitting a pull request, please review our contribution guide

Security

Please consult the security guide for our responsible security vulnerability disclosure process

License

Copyright (c) 2024 Oracle and/or its affiliates.

Released under the Universal Permissive License v1.0 as shown at https://oss.oracle.com/licenses/upl/.