All posts by danmcghan

Uploading and Downloading Files with Node.js and Oracle Database

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I first wrote about uploading and downloading files in 2015. Since then, many new features have been added to the driver, including streaming and buffer APIs for working with LOBs. It’s time to revisit the topic and put these new APIs to use. In this mini-series, I’ll demonstrate two different options for uploading and downloading files. The best choice for your use case will depend on several variables which will be discussed in the respective post.
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Relational to JSON with PL/SQL

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In the last post in this series, I demonstrated how powerful functions added to the SQL engine in Oracle Database 12.2 allow you to generate JSON with ease. But what if you were doing something sufficiently complex that it required the procedural capabilities that PL/SQL provides? Well, you’re covered there too! In this post, I’ll show you how new JSON based object types can be used to get the job done.
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Relational to JSON with SQL

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Oracle started adding JSON support to Oracle Database with version 12.1.0.2. The earliest support was targeted at storing, indexing, and querying JSON data. Version 12.2 rounded out that support by adding features for generating, exploring, and processing JSON data. See the JSON Developer’s Guide for a comprehensive overview of what’s now available. In this post, I’ll leverage the new SQL operators for JSON generation to convert the relational data to meet the goal.
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Creating a REST API: Database Basics

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With the web server in place, it’s time to look into some database basics. As mentioned in the parent post, this series will use the Oracle Database driver/API for Node.js (node-oracledb) to interact with the database. In this post, you’ll create a module that’s responsible for starting up and shutting down a database connection pool. You’ll also add a function that simplifies executing simple statements by getting and releasing connections from the pool automatically.
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Creating a REST API: Web Server Basics

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The web server is one of the most important components of a REST API. In this post, you will start your REST API project by creating some initial directories and files. Then you’ll create a web server module and wire things up so that the web server starts up and shuts down correctly. Finally, you will add some basic logging capabilities to the web server.
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