JSON Blueprint Nodes

Create, parse, and manipulate JSON data in Blueprints.

Category: Scooter Utilities > JSON

JSON (JavaScript Object Notation) is the closest thing there is to a universal language for storing and sending data. Think of it as a super-organized notebook where you can write down anything: numbers, text, lists, even nested structures. The JSON nodes give you simple Blueprint building blocks for working with it, with no C++ or complicated APIs required.

With the JSON nodes, you can:

• Save game data like player stats, inventory, and settings.
• Talk to web APIs.
• Store configuration files.
• Exchange data between systems.
• Create structured save files that humans can actually read.

How the JSON Nodes Work

Every JSON node works on plain String values. There's no special JSON object type to manage:

• Creation nodes take a JSON string, add or change something, and return the updated JSON string. Chain them together, starting from an empty string, to build up an object.
• Parsing nodes take a JSON string and read something out of it.

All values go in as strings, too. The node converts each value based on the type you pick from its dropdown.

NOTE

The JSON nodes work with JSON objects ({...}) at the top level. A string that's only an array or a single value isn't treated as valid JSON.

Quick Start

Here's the simplest possible example, creating a JSON object with a player name:

1. Add an Add Field node to your graph.

2. Set its inputs:

   • Field Type: String
   • JSON String: leave empty
   • Field Name: PlayerName
   • Value: SuperGamer123

3. The JSON String Out pin returns:

   {"PlayerName":"SuperGamer123"}

That's it. You just made JSON.

JSON Node Pages

Creation NodesAdd, remove, merge, and format fields.Parsing NodesValidate JSON and read values out of it.Examples and TroubleshootingReal-world recipes, tips, and fixes for common problems.

JSON Quick Reference

Type	Example	Description
String	"hello"	Text in double quotes.
Number	42 or 3.14	Whole numbers or decimals, no quotes.
Boolean	true or false	No quotes.
Null	null	An explicitly empty value.
Array	[1,2,3]	A list of values in square brackets.
Object	{"key":"value"}	Named fields in curly braces.

A few rules to keep in mind:

• Field names must be in double quotes.
• String values must be in double quotes.
• Numbers and booleans are not in quotes.
• Commas separate items, but there's no comma after the last one.