### Default Roll Template Example

Source: https://help.roll20.net/hc/en-us/articles/360037257334-How-to-Make-Roll-Templates

An example demonstrating how to populate the default roll template with various properties like name, attack roll, and notes.

```text
&{template:default} {{name=Test Attack}} {{attack=[[1d20]]}} 
{{note= This is some note content}} {{Saving Throw= vs Will}}
```

--------------------------------

### Automatic Ammunition Tracking Setup

Source: https://help.roll20.net/hc/en-us/articles/360037773573-D-D-5E-by-Roll20

Step-by-step guide to enable and configure automatic ammunition tracking using the 5th Edition OGL Companion API Script.

```APIDOC
## Automatic Ammunition Tracking Setup

### Description
This tutorial guides you through enabling and configuring the Automatic Ammunition Tracking feature, which requires the Companion API Script.

### Prerequisites
- Companion API Script installed.

### Configuration Steps

1.  **Character Sheet Settings**:
    *   Navigate to the **Settings** (Gear Icon) tab of a character sheet.
    *   Under **GENERAL OPTIONS**, set **INVENTORY** to "Compendium Compatible".
    *   Under **GENERAL OPTIONS**, set **AMMO TRACKING** to **ON**.

2.  **Add Weapon and Ammunition**:
    *   Create or drag a missile weapon (e.g., Longbow) from the Compendium to your sheet.
    *   Create or drag a missile type (e.g., Arrows) from the Compendium to your sheet.

3.  **Configure Ammunition Resource**:
    *   Expand the ammunition item (Arrows) by clicking the "i" icon.
    *   Select the **USE AS RESOURCE** checkbox. (This is often pre-checked for compendium items).

4.  **Link Weapon to Ammunition**:
    *   On the **CORE** tab, expand the missile weapon (Long Bow) in the **ATTACKS & SPELLCASTING** section by clicking its gear icon.
    *   In the **AMMUNITION** section, enter the exact name of the ammunition resource (e.g., `Arrows`).
    *   To spend multiple ammunition pieces per shot, append the quantity after the name, separated by a comma (e.g., `Arrows,2`).

### Usage
Once configured, rolling the linked missile weapon will automatically spend one piece of ammunition, and the chat will log the action. The AMMUNITION section may update with a resource repeating section ID, which is expected behavior.
```

--------------------------------

### Nesting Macros Example

Source: https://help.roll20.net/hc/en-us/articles/360037256794

This example shows how to nest macros. The '#both' macro calls '#attack' and '#damage' macros sequentially. Ensure macros are defined before being called.

```roll20-macro
Macro #damage = /roll 1d4+11
Macro #attack = /roll 1d20+9
Macro #both = 
#attack
#damage
```

--------------------------------

### Default Roll Template Example

Source: https://help.roll20.net/hc/en-us/articles/360037257334

An example of how to use the default roll template with various properties like name, attack, note, and saving throw.

```text
&{template:default}} {{name=Test Attack}} {{attack=[[1d20]]}}  
{{note= This is some note content}} {{Saving Throw= vs Will}}
```

--------------------------------

### Create a Simple Macro

Source: https://help.roll20.net/hc/en-us/articles/360037256794

Use this macro to send a line of text to chat and roll a d20 with a modifier. It's a basic example for getting started.

```roll20-macro
This is My First Macro!  
/roll 1d20 + 5
```

--------------------------------

### Example HTML with Manual Item Numbering

Source: https://help.roll20.net/hc/en-us/articles/360037773493-Character-Sheet-Translation

Shows how to use data-i18n-list-item-num to manually define the order of list items, overriding the default top-down reading order. This example arranges items across columns then down.

```html
<div data-i18n-list="skills-list">
    <div>
        <div data-i18n-list-item="acrobatics" data-i18n-list-item-num="1">
            <span data-i18n="acrobatics-u">ACROBATICS</span>
            <input type="text" name="attr_npc_acrobatics" placeholder="0">
        </div>
        <div data-i18n-list-item="sleight-of-hand" data-i18n-list-item-num="3">
            <span data-i18n="sleight-of-hand-u">SLEIGHT OF HAND</span>
            <input type="text" name="attr_npc_sleight_of_hand" placeholder="0">
        </div>
    </div>
    <div>
        <div data-i18n-list-item="arcana" data-i18n-list-item-num="2">
            <span data-i18n="arcana-u">ARCANA</span>
            <input type="text" name="attr_npc_arcana" placeholder="0">
        </div>
        <div data-i18n-list-item="survival" data-i18n-list-item-num="4">
            <span data-i18n="survival-u">SURVIVAL</span>
            <input type="text" name="attr_npc_survival" placeholder="0">
        </div>
    </div>
</div>
```

--------------------------------

### Define startColour and startColourRandom

Source: https://help.roll20.net/hc/en-us/articles/34838734292247-Legacy-Effects-Tool

Example configuration for particle color and color variation using RGBA arrays.

```json
startColour: [220, 35, 0, 1],
startColourRandom: [62, 0, 0, 0.25]
```

--------------------------------

### Roll20 Macro Query Syntax Example

Source: https://help.roll20.net/hc/en-us/articles/360037256794

This example demonstrates the nested query syntax used in Roll20 macros to create interactive prompts with multiple levels of options and labels.

```Roll20 Macro
?{Name of Query|
   Label 1, ?{value1|
      Label 1A, ?{value1A|
         Label 1Ai, value1Ai |
         Label 1Aii, value1Aii
      } |
      
      Label 1B, ?{value1B|
         Label 1Bi, value1Bi |
         Label 1Bii, value1Bii
      }
   } |

   Label 2, ?{value2|value2}
}
```

--------------------------------

### Example Turn Order Object Structure

Source: https://help.roll20.net/hc/en-us/articles/360037772793-API-Objects

This is an example of the JSON structure for the turn order. It can contain objects with IDs referencing graphics or custom entries.

```json
[
    {
     "id":"36CA8D77-CF43-48D1-8682-FA2F5DFD495F", 
     "pr":"0", 
     "custom":""
    },
    {
     "id":"-1", 
     "pr":"12",
     "custom":"Test Custom"
    }
]
```

--------------------------------

### Select Input Default Setting Example

Source: https://help.roll20.net/hc/en-us/articles/360041542554-Default-Sheet-Settings

For a select input, specify the default selection using the `"default"` or `"value"` key, referencing the key of the desired option. This example shows setting 'Option 2' as the default.

```json
{
  "attribute": "select_default",
  "displayname": "Select Default",
  "type": "select",
  "options": {
    "option1": "Option 1",
    "option2": "Option 2",
    "option3": "Option 3"
  },
  "default": "option2"
}
```

--------------------------------

### Token Marker Commands

Source: https://help.roll20.net/hc/en-us/articles/360041536113

Example script providing chat commands to interact with token markers.

```APIDOC
## Token Marker Chat Commands

### Description
This section details the custom chat commands provided by an example script to manage and query token markers within a Roll20 game.

### Commands

#### `!markernames`
**Description:** Outputs all available token markers to the chat, including their image, name, and ID.

#### `!markerids <name>`
**Description:** Outputs any token markers that match the provided name to the chat.
**Parameters:**
- **name** (string) - Required - The name of the marker to search for.

#### `!settokenmarker <string>`
**Description:** Adds the provided string to the currently selected token's marker list. This command does not validate if the Token Marker exists.
**Parameters:**
- **string** (string) - Required - The marker string to add.

#### `!gettokenmarkers`
**Description:** Outputs the currently selected token's statusmarker attribute to the chat.

### Request Example (for `!settokenmarker`)
```
!settokenmarker Bane::59
```

### Response Example (for `!markernames`)
```html
<p><img src='https://s3.amazonaws.com/files.d20.io/images/59/yFnKXmhLTtbMtaq-Did1Yg/icon.png?1575153187'> 59: Bane</p>
```

### Response Example (for `!markerids <name>`)
```html
<p><img src='https://s3.amazonaws.com/files.d20.io/images/59/yFnKXmhLTtbMtaq-Did1Yg/icon.png?1575153187'> 59: Bane</p>
```

### Response Example (for `!gettokenmarkers`)
```
status_wall,status_burning
```
```

--------------------------------

### Log API Sandbox Initialization

Source: https://help.roll20.net/hc/en-us/articles/38597501957015-2025-Change-Log

Displays the version, release date, ready time, and object count for the API sandbox environment.

```text
"##########> Sandbox [DEFAULT 2025-03-03] : Ready fired after 3.13s, 42 objects."
```

--------------------------------

### Get Attributes in Repeating Sections

Source: https://help.roll20.net/hc/en-us/articles/360037773513-Sheet-Worker-Scripts

When inside a repeating section, use prefixed names to get attributes from the same row. This example retrieves SpellDamage and SpellName from the repeating_spells section.

```javascript
on("change:repeating_spells:spelllevel", function() {
   getAttrs([
      "repeating_spells_SpellDamage",
      "repeating_spells_SpellName"
    ], function(values) {
      //values.repeating_spells_SpellDamage and values.repeating_spells_SpellName 
//will both be from the same repeating section row that the SpellLevel that changed is in.
   });
});
```

--------------------------------

### Trap Macro Example

Source: https://help.roll20.net/hc/en-us/articles/32901366352919-Reactions

A complex macro example that triggers a message, a roll, and a visual effect.

```text
@{selected|character_name} stepped on a trap! 
Dex save: /roll 1d20 + @{@{instigator_id}|dexterity_save_roll} 
/fx explode-fire @{token_id}
```

--------------------------------

### Initialize and Use Namespaced State

Source: https://help.roll20.net/hc/en-us/articles/360037772793

A complete example showing how to initialize a namespaced state object and use it to persist configuration and counters.

```javascript
on('ready',function() {
    "use strict";

    // Check if the namespaced property exists, creating it if it doesn't
    if( ! state.MyModuleNS ) {
        state.MyModuleNS = {
            version: 1.0,
            config: {
                color1: '#ff0000',
                color2: '#0000ff'
            },
            count: 0
        };
    }

    // Using the state properties to configure a message to the chat. 
    sendChat(
        'Test Module',
        '<span style="color: '+state.MyModuleNS.config.color1+';">'+
            'State test'+
        '</span> '+
        '<span style="color: '+state.MyModuleNS.config.color2+';">'+
            'Script v'+state.MyModuleNS.version+' started '+(++state.MyModuleNS.count)+' times!'+
        '</span>'
    );
});
```

--------------------------------

### Damage Dice Input Examples

Source: https://help.roll20.net/hc/en-us/articles/360045613693-Pathfinder-Second-Edition-by-Roll20

Examples of valid dice code formats for the temp or other fields when calculating damage.

```text
3
```

```text
1d4+1
```

--------------------------------

### Multiple Sub-Roll Failure Example

Source: https://help.roll20.net/hc/en-us/articles/360037773133-Dice-Reference

Example demonstrating how to count failures across multiple grouped sub-roll expressions.

```Roll20 Dice Syntax
{4d6+2d8, 3d20+3, 5d10+1}>40f<10
```

--------------------------------

### Single Sub-Roll Failure Examples

Source: https://help.roll20.net/hc/en-us/articles/360037773133-Dice-Reference

Examples demonstrating how to count failures alongside successes in single dice expressions.

```Roll20 Dice Syntax
{3d20+5}>21f<10
```

```Roll20 Dice Syntax
{2d6!}>4f1
```

--------------------------------

### Initialize and Use Namespaced State

Source: https://help.roll20.net/hc/en-us/articles/360037772793-API-Objects

This example demonstrates checking for a namespaced state property and initializing it if it doesn't exist. It then uses the state properties to configure and send a chat message.

```javascript
on('ready',function() {
    "use strict";

    // Check if the namespaced property exists, creating it if it doesn't
    if( ! state.MyModuleNS ) {
        state.MyModuleNS = {
            version: 1.0,
            config: {
                color1: '#ff0000',
                color2: '#0000ff'
            },
            count: 0
        };
    }

    // Using the state properties to configure a message to the chat. 
    sendChat(
        'Test Module',
        '<span style="color: '+state.MyModuleNS.config.color1+';">
            State test
        </span> '+ 
        '<span style="color: '+state.MyModuleNS.config.color2+';">
            Script v'+state.MyModuleNS.version+' started '+(++state.MyModuleNS.count)+' times!
        </span>'
    );
});
```

--------------------------------

### Graphic Object - Token Marker Example

Source: https://help.roll20.net/hc/en-us/articles/360037772793-API-Objects

An example of the JSON structure for a token marker, including its ID, name, tag, and URL.

```APIDOC
## Graphic Object - Token Marker Example

### Description
This example shows the structure of a token marker object, which includes its unique identifier, display name, internal tag, and the URL to its image.

### Request Body
```json
{
  "id": 59,
  "name": "Bane",
  "tag": "Bane::59",
  "url": "https://s3.amazonaws.com/files.d20.io/images/59/yFnKXmhLTtbMtaq-Did1Yg/icon.png?1575153187"
}
```

### Response Example
```json
{
  "id": 59,
  "name": "Bane",
  "tag": "Bane::59",
  "url": "https://s3.amazonaws.com/files.d20.io/images/59/yFnKXmhLTtbMtaq-Did1Yg/icon.png?1575153187"
}
```
```

--------------------------------

### Demonstrate Asynchronous Function Execution

Source: https://help.roll20.net/hc/en-us/articles/360037772773-Mod-Scripts-API-Advanced-Use-Guide

Examples showing how asynchronous functions return control to the parent scope immediately before completing their background tasks.

```javascript
on('load',function(){
  log('Parent Scope - Before call to asynchronous function.');

  setTimeout(function(){
    log('Asynchronous Function Scope - Doing the Asynchronous function work.');
  },10 /* 10 milliseconds */);

  log('Parent Scope - after call to asynchronous function.');
});
```

```text
"Parent Scope - Before call to asynchronous function."
"Parent Scope - after call to asynchronous function."
"Asynchronous Function Scope - Doing the Asynchronous function work."
```

```javascript
on('load',function(){
  log('Parent Scope - Before call to asynchronous function.');

  sendChat('Async Function','Evaluate this: [[1d6]]',function(msg){
    log('Asynchronous Function Scope - Doing the Asynchronous function work.');
  });

  log('Parent Scope - after call to asynchronous function.');
```

--------------------------------

### Send a message with options

Source: https://help.roll20.net/hc/en-us/articles/360037256754-API-Chat

Demonstrates how to send a message with specific options while passing null for the unused callback parameter.

```javascript
sendChat("Status", "All players are logged in.", null, {noarchive:true} );
```

```javascript
sendChat("Name", "Rolling [[3d6]]", null, {use3d: true});
```

--------------------------------

### Send Ping Example

Source: https://help.roll20.net/hc/en-us/articles/360037256774-API-Utility-Functions

Demonstrates various ways to use the sendPing function, including pinging all players, specific players, or a group of players by ID. Requires the 'chat:message' event handler.

```javascript
on("chat:message", function(msg) {
  // Enter "!pingtest" into the chat to run the test
  if(msg.type == "api" && msg.content.indexOf("!pingtest") && && -1) {
 
    // to get a specific player, use findObjs({_type: "player"})[i].id instead of null for the 3rd parameter
    players = findObjs({_type: "player"});
    player1 = players[1].id;
    player2 = players[2].id;
 
    // Create an array of all player's IDs
    var allPlayerIDs = players.map(function(player) {
      return player['id'];
    });
 
    // Ping everyone on this page to the same location.
    sendPing(300, 300, Campaign().get('playerpageid'), null, true);
    setTimeout(function() {
        // Ping everyone on this page to the same location
        sendPing(1500, 500, Campaign().get('playerpageid'), msg.playerid, true, "");
    }, 1000);
    setTimeout(function() {
        // Ping only the specified player to this location
        sendPing(1200, 500, Campaign().get('playerpageid'), null, true, player1);
    }, 2000);
    setTimeout(function() {
        // Ping an array of player IDs (player 1 and 2) to this location
        sendPing(900, 100, Campaign().get('playerpageid'), player2, true, [player1, player2]);
    }, 3000);
    setTimeout(function() {
        // Ping a comma-separated list supplied as a string to this location
        sendPing(300, 300, Campaign().get('playerpageid'), player1, true, allPlayerIDs.join());
    }, 4000);
 
  }
})
```

--------------------------------

### Roll20 Attribute Auto-complete Example

Source: https://help.roll20.net/hc/en-us/articles/360037256794

This example shows how to use the '@' symbol for auto-completing attribute references in Roll20. Typing '@' followed by a few letters will display matching attributes.

```Roll20 Chat
@int
```

--------------------------------

### Implement translation keys in button macros

Source: https://help.roll20.net/hc/en-us/articles/360037773453-Minimum-Requirements-Best-Practices

Use the ^{key} syntax to reference translation strings from the language JSON files.

```text
^{key}
```

--------------------------------

### Example Script for Token Marker Operations

Source: https://help.roll20.net/hc/en-us/articles/360041536113-API-Token-Markers

This script provides functions to interact with token markers, including listing all markers, finding markers by name, setting markers on selected tokens, and retrieving a token's current markers.

```APIDOC
## Token Marker Script Commands

### Description
This script adds several chat commands to your Roll20 game for managing token markers.

### Commands
- **!markernames**
  - **Description**: Outputs all available token markers to the chat, including their image, name, and ID.
  - **Usage**: Type `!markernames` in the chat.

- **!markerids <name>**
  - **Description**: Outputs any token markers that match the provided name to the chat.
  - **Usage**: Type `!markerids <marker_name>` in the chat (e.g., `!markerids Bane`).

- **!settokenmarker <string>**
  - **Description**: Adds the provided string to the currently selected token's marker list. This command does not validate if the Token Marker exists.
  - **Usage**: Type `!settokenmarker <marker_string>` in the chat (e.g., `!settokenmarker Bane::59`).

- **!gettokenmarkers**
  - **Description**: Outputs the currently selected token's statusmarker attribute to the chat.
  - **Usage**: Select a token and type `!gettokenmarkers` in the chat.

### Script Example
```javascript
on("ready", () => {
  const tokenMarkers = JSON.parse(Campaign().get("token_markers"));

  const getChatMessageFromTokenMarkers = markers => {
    let chatMessage = '';
    _.each(markers, marker => {
      chatMessage += `<p><img src='${marker.url}'> ${marker.id}: ${marker.name}</p>`;
    });
    return chatMessage;
  };

  on("chat:message", msg => {
    if (msg.content.split(" ")[0].toLowerCase() === '!markernames') {
      let chatMessage = getChatMessageFromTokenMarkers(tokenMarkers);
      sendChat("Token Markers", chatMessage);
    } else if (msg.content.split(" ")[0].toLowerCase() === '!markerids') {
      const markerName = msg.content.split(" ")[1].toLowerCase();
      let results = [];
      _.each(tokenMarkers, marker => {
        if (marker.name.toLowerCase() === markerName) results.push(marker);
      });
      log(results);
      let chatMessage = getChatMessageFromTokenMarkers(results);
      chatMessage = chatMessage || 'Unable to find any matching token markers';
      sendChat("Token Markers", chatMessage);
    } else if (msg.content.split(" ")[0].toLowerCase() === '!settokenmarker') {
      const markerNameToAdd = msg.content.split(" ")[1]; // Keep original case for adding
      if (!msg.selected || msg.selected[0]._type !== "graphic") return;
      const obj = getObj(msg.selected[0]._type, msg.selected[0]._id);
      let currentMarkers = obj.get("statusmarkers").split(',');
      if (!currentMarkers.includes(markerNameToAdd)) {
          currentMarkers.push(markerNameToAdd);
          obj.set("statusmarkers", currentMarkers.join(','));
      }
    } else if (msg.content.split(" ")[0].toLowerCase() === '!gettokenmarkers') {
      if (!msg.selected || msg.selected[0]._type !== "graphic") return;
      const obj = getObj(msg.selected[0]._type, msg.selected[0]._id);
      const currentMarkers = obj.get("statusmarkers");
      sendChat("Token Markers", currentMarkers);
    }
  });
});
```
```

--------------------------------

### Radio Input Default Setting Example

Source: https://help.roll20.net/hc/en-us/articles/360041542554-Default-Sheet-Settings

Similar to select inputs, the `"default"` or `"value"` key can set the default selection for radio buttons. This example sets 'radio2' as the default.

```json
{
  "attribute": "radio_default",
  "displayname": "Radio Default",
  "type": "radio",
  "options": {
    "radio1": "Radio 1",
    "radio2": "Radio 2",
    "radio3": "Radio 3"
  },
  "default": "radio2"
}
```

--------------------------------

### Get Calculated Attribute Value with Inline Roll

Source: https://help.roll20.net/hc/en-us/articles/360037256794

Wrap an attribute reference in an inline roll `[[...]]` to ensure you get the calculated value rather than the formula itself. This is essential for using dynamic character sheet stats.

```Roll20 Macro
@{selected|character_name} has [[@{selected|action_points}]] points left.
```

--------------------------------

### Automatic Spell Slot Tracking Setup

Source: https://help.roll20.net/hc/en-us/articles/360037773573-D-D-5E-by-Roll20

Instructions for enabling and using the Automatic Spell Slot Tracking feature with the 5th Edition OGL Companion API Script.

```APIDOC
## Automatic Spell Slot Tracking Setup

### Description
This guide explains how to enable and utilize the Automatic Spell Slot Tracking feature, which requires the Companion API Script.

### Prerequisites
- Companion API Script installed.

### Enabling Spell Tracking

1.  **Check Status**:
    *   In the chat input area, type `!5estatus` and press Enter to verify if `spelltracking` is currently `on`.

2.  **Activate Feature**:
    *   If spell tracking is not on, type `!spelltracking on` and press Enter.
    *   Alternatively, to activate without chat messages, type `!spelltracking quiet` and press Enter.

### How it Works

Once activated, the script automatically manages spell slots:

1.  **Spell Tab Update**:
    *   The number of cast spells for the appropriate level is updated in the **Spell** tab of the character sheet.

2.  **Chat Notification**:
    *   A message appears in the chat detailing the spell level, available spell slots, and used spell slots for that level.

3.  **Slot Decrementation**:
    *   Spell slots are automatically decremented as spells are cast.

4.  **Ritual Spells**:
    *   Spells marked as Rituals do not consume spell slots when cast.

### Manual Adjustment

Spell slot counts can be manually adjusted at any time within the **Spell Page** of the character sheet.
```

--------------------------------

### Global Save Modifier Example (DND 5e)

Source: https://help.roll20.net/hc/en-us/articles/360037773573-D-D-5E-by-Roll20

Example of how to configure a global save modifier in Roll20 for spells like Bless. This adds a 1d4 bonus to saving throws and death saves when enabled, with a visible label in chat.

```Roll20 API
1d4[BLESS]
```

--------------------------------

### playJukeboxPlaylist

Source: https://help.roll20.net/hc/en-us/articles/360037772833-API-Function-Documentation

Starts playback of a specific jukebox playlist.

```APIDOC
## playJukeboxPlaylist

### Description
Starts playing the specified jukebox playlist.

### Parameters
- **PLAYLIST_ID** (String) - Required - The id of the playlist to start playing.

### Returns
- **Void**
```