# JSON SET
## JSON SET
### Set New Json Object Field
{% hint style="info" %}
### Set New Json Object Field
## 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 JSON. 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 set data 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 string**) to assign the new empty JSON object to.
## Outputs
* **Success** – Returns true if the empty object was successfully created and inserted. Otherwise false.
* **New Json Object** – The newly created empty object, returned for further editing (**not the full input object**).
{% endhint %}
***
### Set Json Object Field
{% hint style="info" %}
### Set Json Object Field
## 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 JSON 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**](#set-new-json-object-field), which creates a blank JSON object, this version accepts a fully built JSON object and appends it into a larger JSON.
### Examples
#### Parent Data
**{**
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**"PlayerInfo": {**
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**"Name": "ShadowRogue",**
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**"Level": 12,**
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**"Class": "Assassin",**
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**"XP": 3450,**
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**"IsAlive": true**
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**}**
\
**}**
#### Data To Insert
**{**
\
**"PlayerStats": {**
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**"Health": 85,**
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**"Mana": 60,**
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**"Stamina": 40,**
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**"Armor": 25,**
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**"CriticalChance": 0.15**
\
**}**
\
**}**
#### Combined Data
**{**
\
**"PlayerInfo": {**
\
**"Name": "ShadowRogue",**
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**"Level": 12,**
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**"Class": "Assassin",**
\
**"XP": 3450,**
\
**"IsAlive": true**
\
**},**
\
**"PlayerStats": {**
\
**"Health": 85,**
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**"Mana": 60,**
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**"Stamina": 40,**
\
**"Armor": 25,**
\
**"CriticalChance": 0.15**
\
**}**
\
**}**
## Inputs
* **JSON Object** – The 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 string**) under which the object should be stored.
## Outputs
* **Success** – Returns true if the nested object was successfully inserted. Otherwise false.
* **New Json Object** – The updated full JSON object, including the newly added or modified field.
{% endhint %}
***
### Insert Json Object
{% hint style="info" %}
### Insert Json Object
## 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 JSON.
### 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. Otherwise false.
* **Combined Json** – The resulting JSON object containing fields from both input objects.
{% endhint %}
***
### Set Json Bool Field
{% hint style="info" %}
### Set Json Bool Field
## 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 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.
{% endhint %}
***
### Set Json Byte Field
{% hint style="info" %}
### Set Json Byte Field
## 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 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. Otherwise false.
* **New Json Object** – The updated JSON object with the new or modified byte field.
{% endhint %}
***
### Set Json Number Field
{% hint style="info" %}
### Set Json Number 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 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. Otherwise false.
* **New Json Object** – The updated JSON object with the number (**float**) field added or changed.
{% endhint %}
***
### Set Json String Field
{% hint style="info" %}
### Set Json String Field
## 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 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. Otherwise false.
* **New Json Object** – The updated JSON object with the string field included.
{% endhint %}
***
### Set Json Rotator Field
{% hint style="info" %}
### Set Json Rotator Field
## Overview
JSON functionality used to add or update a **Rotator** field in a JSON object. This node sets a specified field using 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 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. Otherwise false.
* **New Json Object** - The resulting JSON object with the correctly formatted **rotator** field.
{% endhint %}
***
### Set Json Vector Field
{% hint style="info" %}
### Set Json Vector Field
## Overview
JSON functionality used to add or update a **Vector field** 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": {**
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**"X": 120.0,**
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**"Y": 450.0,**
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**"Z": 300.0**
\
**}**
\
**}**
## Inputs
* **JSON Object –** The JSON object you want to modify.
* **Field Name** – The name of the field (**as 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. Otherwise false.
* **New Json Object** - The resulting JSON object with the new or updated **vector** field.
{% endhint %}
***
### Set Json Vector Field 2D
{% hint style="info" %}
### Set Json Vector Field 2D
## 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": {**
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**"X": 123,**
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**"Y": 321**
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**}**
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**}**
## Inputs
* **JSON Object –** The JSON object you want to modify.
* **Field Name** – The name of the field (**as 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.
{% endhint %}
***
### Set Json Transform Field
{% hint style="info" %}
### Set Json Transform Field
## Overview
JSON functionality used to safely write a **Transform** structure into a JSON object. This node sets a specified field using a **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": {**
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**"X": 123,**
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**"Y": 43,**
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**"Z": 45,**
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**"Roll": 0,**
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**"Pitch": -0,**
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**"Yaw": 90,**
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**"Scale X": 1,**
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**"Scale Y": 1,**
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**"Scale Z": 1**
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**}**
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**}**
## Inputs
* **JSON Object –** The JSON object you want to modify.
* **Field Name** – The name of the field (**as 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. Otherwise false.
* **New Json Object** - The resulting JSON object with the flattened **Transform** structure added or updated.
{% endhint %}
***
### Set Json Color Field
{% hint style="info" %}
### Set Json Color Field
## 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": {**
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**"R": 255,**
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**"G": 0,**
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**"B": 50,**
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**"A": 255**
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**}**
\
**}**
## Inputs
* **JSON Object –** The input JSON object you want to modify.
* **Field Name** – The name of the field (**as 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.
{% endhint %}
***
### Set Json Array Field
{% hint style="info" %}
### Set Json Array Field
## 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 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**
**{**
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**"Inventory": \[**
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**{**
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**"Name": "Health Potion"**
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**},**
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**{**
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**"Type": "Weapon"**
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**},**
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**{**
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**"Effect": "Fireball"**
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**}**
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**]**
\
**}**
**Root Level JSON = true**
**\[**
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**{**
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**"Name": "Health Potion",**
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**"Type": "Consumable",**
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**"Effect": "Restore 50 HP"**
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**},**
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**{**
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**"Name": "Iron Sword",**
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**"Type": "Weapon",**
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**"Effect": "Ice walking"**\
**},**
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**{**
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**"Name": "Magic Scroll",**
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**"Type": "Spell",**
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**"Effect": "Fireball"**
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**}**
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**]**
## 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.
{% endhint %}
