JSON SET

Overview

Creates a new, empty JSON object and inserts it into the specified field within an existing JSON object. This is typically used as a setup step for nesting further data inside a parent structure. The newly created object is returned for further use and modification. not the full original JSON object.

Note: This node does not copy the entire structure forward. It only returns the newly created nested object so you can build into it directly.

Inputs

• JSON Object – The JSON object to which the new nested object should be added.

• Field Name – The name of the field (as a string) to assign the new empty JSON object to.

Outputs

• Success – Returns true if the empty object was successfully created and inserted.

• New Json Object – The newly created empty object, returned for further editing (not the full input object).

Overview

Adds or updates a nested JSON object field inside an existing parent JSON object. This node allows you to insert a fully constructed JSON object into another object under a specified field name. If the field already exists, it will be overwritten with the new object.

Unlike Set New JSON Object Field, which creates a blank object, this version accepts a fully built JSON object and appends it into a larger structure.

Examples

Parent Data

{ "PlayerInfo": { "Name": "ShadowRogue", "Level": 12, "Class": "Assassin", "XP": 3450, "IsAlive": true } }

Data To Insert

{ "PlayerStats": { "Health": 85, "Mana": 60, "Stamina": 40, "Armor": 25, "CriticalChance": 0.15 } }

Combined Data

{ "PlayerInfo": { "Name": "ShadowRogue", "Level": 12, "Class": "Assassin", "XP": 3450, "IsAlive": true }, "PlayerStats": { "Health": 85, "Mana": 60, "Stamina": 40, "Armor": 25, "CriticalChance": 0.15 } }

Inputs

• JSON Object – he parent JSON object you want to modify.

• Object Data - The desired data to insert into the parent.

• Field Name – The name of the field (as a string) under which the object should be stored.

Outputs

• Success – Returns true if the nested object was successfully inserted.

• New Json Object – The updated full JSON object, including the newly added or modified field.

Overview

This node merges one JSON object into another by copying all fields from the Data to Insert object into the JSON Object. If any fields already exist in the target, they will be overwritten by values from the incoming object. The result is a single, combined JSON object containing fields from both inputs.

Note: This operation does not create a nested structure. All top-level fields from both objects are merged into a flat, unified structure.

Examples

Parent Data

{ "PlayerInfo": { "Name": "ShadowRogue", "Level": 12, "Class": "Assassin", "XP": 3450 } }

Data To Insert

{ "PlayerStats": { "Health": 85, "Mana": 60, "Stamina": 40, "Armor": 25 } }

Combined Data

{ "PlayerInfo": { "Name": "ShadowRogue", "Level": 12, "Class": "Assassin", "XP": 3450, "Health": 85, "Mana": 60, "Stamina": 40, "Armor": 25 } }

Inputs

• JSON Object – The target JSON object that will receive the new fields.

• Data To Insert – The second JSON object whose fields will be inserted into the first.

Outputs

• Success – Returns true if the merge was successful.

• Combined Json – The resulting JSON object containing fields from both input objects.

Overview

Adds or updates a Boolean field in a JSON object. This node sets a key–value pair where the value is a Boolean (true or false) and outputs a new JSON object containing the updated field.

Note: If the specified field already exists, its value will be overwritten. If it does not exist, it will be added.

Inputs

• JSON Object – The input JSON object you want to modify.

• Field Name – The name of the field (as a string) to add or update.

• Value - The Boolean value (true or false) to assign to the specified field.

Outputs

• Success – Returns true if the field was successfully set in the object. Otherwise false.

• New Json Object – The updated JSON object with the Boolean field set.

Overview

Adds or updates a byte value field in a JSON object. This node sets a key–value pair where the value is treated as a byte and outputs a new JSON object containing the updated data.

Note: If the specified field already exists, its value will be overwritten. If it does not exist, it will be added.

Inputs

• JSON Object – The input JSON object you want to modify.

• Field Name – The name of the field (as a string) to add or update.

• Value - The byte value (0–255) to assign to the specified field.

Outputs

• Success – Returns true if the field was successfully set in the object.

• New Json Object – The updated JSON object with the new or modified byte field.

Overview

Adds or updates a numeric field (Float) in a JSON object. This node sets a key–value pair where the value is a number (float), and outputs a new JSON object with the updated content.

Note: If the specified field already exists, its value will be overwritten. If it does not exist, it will be added.

Inputs

• JSON Object – The input JSON object you want to modify.

• Field Name – The name of the field (as a string) to add or update.

• Value - The numeric value (float) to assign to the specified field.

Outputs

• Success – Returns true if the field was successfully set in the object.

• New Json Object – The updated JSON object with the number (float) field added or changed.

Overview

Adds or updates a string field in a JSON object. This node sets a key–value pair where the value is a string and outputs a new JSON object containing the updated or newly created field.

Note: If the specified field already exists, its value will be overwritten. If it does not exist, it will be added.

Inputs

• JSON Object – The input JSON object you want to modify.

• Field Name – The name of the field (as a string) to add or update.

• Value - The string value to assign to the specified field.

Outputs

• Success – Returns true if the field was successfully set in the object.

• New Json Object – The updated JSON object with the string field included.

Overview

JSON functionality used to add or update a Rotator structure in a JSON object. This node sets a specified field using an Unreal Engine Rotator, composed of Roll, Pitch, and Yaw values, ensuring the structure is correctly formatted for JSON serialization.

You must ensure the rotator structure is stored in the expected format. (As seen in example below) This node automatically applies the proper formatting, making it the recommended way to write rotator data into JSON for compatibility with other JSON utility nodes.

Example

{ "PlayerRotation": { "Roll": 0, "Pitch": 0, "Yaw": -90 } }

Inputs

• JSON Object – The JSON object you want to modify.

• Field Name – The name of the field (as a string) to create or update.

• Rotator Data - The Unreal Engine Rotator value you wish to set.

Outputs

• Success – Returns true if the rotator field was successfully added or updated.

• New Json Object - The resulting JSON object with the correctly formatted rotator field.

Overview

JSON functionality used to add or update a Vector structure in a JSON object. This node takes an Unreal Engine Vector (composed of X, Y, and Z values) and assigns it to a specified field within a JSON object using the correct structure.

You must ensure the vector structure is stored in the expected format. (As seen in example below) This node automatically applies the proper formatting, making it the recommended way to write vector data into JSON for compatibility with other JSON utility nodes.

Example

{ "SpawnLocation": { "X": 120.0, "Y": 450.0, "Z": 300.0 } }

Inputs

• JSON Object – The JSON object you want to modify.

• Field Name – The name of the field (as a string) to create or update.

• Vector Data - The Unreal Engine Vector value you want to assign, composed of X, Y, and Z.

Outputs

• Success – Returns true if the vector field was successfully written to the JSON object.

• New Json Object - The resulting JSON object with the new or updated vector field.

Overview

JSON functionality used to safely write a 2D Vector structure (Vector2D) into a JSON object. This node sets the value of a specified field using a Vector2D, composed of X and Y values, and ensures it is formatted correctly for later use.

You must ensure the Vector2D structure is stored in the expected format. (As seen in example below) This node automatically applies the proper formatting, making it the recommended way to write vector2D data into JSON for compatibility with other JSON utility nodes.

Example

{ "PlayerLocation2D": { "X": 123, "Y": 321 } }

Inputs

• JSON Object – The JSON object you want to modify.

• Field Name – The name of the field (as a string) to create or update.

• Vector Data 2D - The Vector2D value to assign. The X and Y components will be written into the JSON structure.

Outputs

• Success – Returns true if the field was successfully written into the JSON object. Otherwise, returns false.

• New Json Object - The resulting JSON object with the Vector2D field added or updated using the correct format.

Overview

JSON functionality used to safely write a Transform structure into a JSON object. This node sets a specified field using a full Unreal Engine Transform, composed of a Location (X, Y, Z), Rotation (Roll, Pitch, Yaw), and Scale (Scale X, Scale Y, Scale Z), all flattened into a single-level JSON format.

You must ensure that the Transform structure is stored in the expected format. This node guarantees correct formatting and is the recommended way to serialize Transform data into JSON.

Example

{ "PlayerTransform": { "X": 123, "Y": 43, "Z": 45, "Roll": 0, "Pitch": -0, "Yaw": 90, "Scale X": 1, "Scale Y": 1, "Scale Z": 1 } }

Inputs

• JSON Object – The JSON object you want to modify.

• Field Name – The name of the field (as a string) to create or update.

• Transform Data - The Unreal Engine Transform value, including Location, Rotation, and Scale components.

Outputs

• Success – Returns true if the Transform field was successfully written into the JSON object.

• New Json Object - The resulting JSON object with the flattened Transform structure added or updated.

Overview

JSON functionality used to add or update a color structure in a JSON object. This node takes an Unreal Engine Linear Color (composed of R, G, B, and A values) and sets it as the value of a specified object field in the JSON object.

You must ensure the Linear Color structure is stored in the expected format. (As seen in example below) This node automatically applies the proper formatting, making it the recommended way to write Linear Color data into JSON for compatibility with other JSON utility nodes.

Example

{ "Torch Color": { "R": 255, "G": 0, "B": 50, "A": 255 } }

Inputs

• JSON Object – The input JSON object you want to modify.

• Field Name – The name of the field (as a string) to add or update.

• New Color - The Unreal Engine Linear Color you want to assign to the specified field.

Outputs

• Success – Returns true if the field was successfully written to the object. Otherwise, returns false.

• New Json Object - The resulting JSON object with the properly formatted color structure added or updated.

Overview

JSON functionality used to add or update an array field in a JSON object. This node sets a field to hold a JSON array, which can contain values of any type (Numbers, strings, objects, or nested arrays), and ensures it is properly formatted for serialization.

Inputs

• JSON Object – The JSON object you want to modify.

• Field Name – The name of the field (as a string) to assign the array to.

• Root Level JSON – If true, all array entries are placed together into a single object where each entry shares the same structure (i.e. same fields, with different values). If false, each array entry is placed into its own individual JSON object, typically with only one field per object.

• Array Data – The array of values to insert into the JSON object.

Examples

Root Level JSON = false

{ "Inventory": [ { "Name": "Health Potion" }, { "Type": "Weapon" }, { "Effect": "Fireball" } ] }

Root Level JSON = true

[ { "Name": "Health Potion", "Type": "Consumable", "Effect": "Restore 50 HP" }, { "Name": "Iron Sword", "Type": "Weapon", "Damage": 25 }, { "Name": "Magic Scroll", "Type": "Spell", "Effect": "Fireball" } ]

Outputs

• Success – Returns true if the array was successfully added or updated in the JSON object. Otherwise, returns false.

• Out Array Data – The JSON array that was written to the specified field or to the root, depending on the configuration.