Custom Message

Unlimited Flexibility: Custom messages enable you to create any type of content beyond standard text, image, video, and file messages. Use structured JSON data to build polls, location sharing, interactive cards, booking widgets, and any specialized content your application requires.

Custom Message Overview

Custom messages provide unlimited flexibility for creating specialized content types using structured JSON data. Perfect for building interactive elements, complex data visualization, and application-specific functionality.

Flexible Structure

JSON-based data format

Free-form JSON object structure
Support for nested objects and arrays
Complex data type handling
Schema validation capabilities

Interactive Content

Rich user experiences

Surveys
Location sharing and maps
Booking and reservation widgets
Custom UI components

Implementation Guide

Simple custom data structuresCreate custom messages with structured JSON data for various use cases and interactive content.

Required Parameters

Parameter	Type	Description
`subChannelId`	String	Target subchannel identifier for the custom message
`data`	Object/JSON	Free-form JSON object containing your custom data structure

Optional Parameters

Parameter	Type	Description
`tags`	Array<String>	Message categorization and filtering tags
`parentId`	String	Parent message ID for threaded conversations
`metadata`	Object	Additional properties for extended functionality

Code Examples

// Basic custom message with simple data
let pollData: [String: Any] = [
    "type": "poll",
    "question": "What's your favorite programming language?",
    "options": [
        ["id": "swift", "text": "Swift", "votes": 0],
        ["id": "kotlin", "text": "Kotlin", "votes": 0],
        ["id": "typescript", "text": "TypeScript", "votes": 0],
        ["id": "python", "text": "Python", "votes": 0]
    ],
    "multiple_choice": false,
    "expires_at": "2024-01-20T23:59:59Z"
]

let options = AmityCustomMessageCreateOptions(
    subChannelId: "subChannel-123",
    data: pollData,
    tags: ["poll", "survey", "team"],
    parentId: nil
)

do {
    let message = try await messageRepository.createCustomMessage(options: options)
    print("Custom poll message sent: \(message.messageId)")
    
    // Access custom data
    if let customData = message.data as? [String: Any] {
        print("Poll question: \(customData["question"] ?? "")")
    }
} catch {
    print("Failed to send custom message: \(error)")
}

JSON Structure: Custom message data supports any valid JSON structure including nested objects, arrays, and primitive types. Design your data schema to match your UI requirements.

Custom Message Use Cases

Polls & Surveys

Interactive voting and feedback collectionPoll Features

Single/Multiple Choice: Support for both single selection and multiple selection polls
Anonymous Voting: Optional anonymous voting for sensitive topics
Time-Limited Polls: Set expiration dates for time-sensitive decisions
Real-Time Results: Live vote counting and results display

Survey Capabilities

Multi-Question Surveys: Complex surveys with various question types
Conditional Logic: Show/hide questions based on previous answers
Progress Tracking: Visual progress indicators for long surveys
Response Analytics: Detailed analytics on survey responses

Question Types

Rating Scales: 1-5 or 1-10 rating questions
Open Text: Free-form text responses
Multiple Choice: Single or multiple selection options
Yes/No: Simple binary questions

Poll Data Structure

{
  "type": "poll",
  "question": "Which feature should we prioritize?",
  "options": [
    {"id": "feature_a", "text": "Feature A", "votes": 0},
    {"id": "feature_b", "text": "Feature B", "votes": 0}
  ],
  "settings": {
    "multiple_choice": false,
    "anonymous": true,
    "expires_at": "2024-01-20T23:59:59Z"
  }
}

Location & Events

Location sharing and event managementLocation Sharing

GPS Coordinates: Precise latitude/longitude coordinates
Address Information: Human-readable addresses and venue details
Interactive Maps: Embedded map views with directions
Location Metadata: Additional context like floor, room, or landmarks

Event Management

Event Details: Date, time, duration, and timezone information
Venue Information: Location details with capacity and amenities
Registration System: RSVP functionality with attendee limits
Calendar Integration: Export to calendar applications

Use Cases

Meeting Coordination: Share meeting locations and details
Event Announcements: Company events and social gatherings
Emergency Coordination: Share emergency meeting points
Field Work: Location updates for remote teams

Location Data Structure

{
  "type": "location",
  "coordinates": {"lat": 37.7749, "lng": -122.4194},
  "address": "123 Tech Street, San Francisco, CA",
  "venue_details": {
    "name": "Conference Center",
    "floor": "2nd Floor",
    "room": "Room A"
  }
}

Rich Cards & Widgets

Structured content displays and interactive widgetsRich Card Features

Visual Hierarchy: Title, subtitle, and body content organization
Media Integration: Images, videos, and file attachments
Action Buttons: Interactive buttons for user actions
Custom Styling: Colors, layouts, and branding options

Widget Types

Booking Widgets: Appointment and reservation systems
Product Showcases: Product information with pricing
Status Updates: Project status and progress indicators
Announcement Cards: Important updates with rich formatting

Interactive Elements

Buttons: Call-to-action buttons with custom actions
Forms: Embedded forms for data collection
Media Players: Audio and video playback controls
External Links: Deep links to other applications

Rich Card Structure

{
  "type": "rich_card",
  "title": "Q4 Performance Report",
  "content": {"summary": "...", "metrics": [...]},
  "actions": [
    {"type": "button", "label": "View Report", "action": "open_url"}
  ],
  "styling": {"color_scheme": "success"}
}

Business Workflows

Enterprise workflow integration and automationApproval Workflows

Multi-Step Approvals: Complex approval chains with multiple approvers
Conditional Logic: Different approval paths based on criteria
Deadline Management: Time limits for approval decisions
Audit Trail: Complete history of approval actions

Task Management

Task Assignment: Assign tasks with due dates and priorities
Progress Tracking: Status updates and completion tracking
Dependencies: Task dependencies and blocking relationships
Resource Allocation: Resource and time estimates

Integration Features

External Systems: Connect to HR, CRM, and project management tools
API Webhooks: Trigger external actions based on message interactions
Data Synchronization: Keep external systems in sync
Reporting: Generate reports from workflow data

Approval Workflow Structure

{
  "type": "approval_request",
  "workflow_id": "expense_approval",
  "request_details": {...},
  "approval_chain": [
    {"step": 1, "approver": "manager", "status": "pending"}
  ],
  "metadata": {"department": "sales", "amount": 1250.00}
}

Best Practices

Data Structure Design

Designing effective custom message schemasSchema Design Principles

Consistent Structure: Use consistent field names and data types across similar message types
Extensibility: Design schemas that can be extended without breaking existing implementations
Validation: Include validation rules and constraints in your schema design
Documentation: Maintain clear documentation of your custom message schemas

Performance Considerations

Size Limits: Keep custom message data under reasonable size limits (recommended < 50KB)
Nesting Depth: Avoid excessive nesting that can impact parsing performance
Required vs Optional: Minimize required fields to reduce validation overhead
Indexing: Design data structure to support efficient searching and filtering

Version Management

Schema Versioning: Include version information in your custom message schema
Backward Compatibility: Ensure new versions are backward compatible when possible
Migration Strategies: Plan for data migration when schema changes are required
Deprecation: Properly deprecate old schema versions with clear timelines

Schema Design Example

interface CustomMessageSchema {
  version: string;
  type: string;
  required_fields: string[];
  optional_fields: string[];
  validation_rules: {
    [field: string]: {
      type: string;
      min_length?: number;
      max_length?: number;
      enum_values?: string[];
    };
  };
}

User Experience

Text Messages

Standard messaging Basic text messaging capabilities

Message Management

Content control Edit, delete, and moderate message content

Real-Time Updates

Live synchronization Real-time message updates and interactions

Implementation Strategy: Start with simple custom message types like polls or location sharing, then progressively build more complex interactive content. Always validate your data schema and implement proper error handling for the best user experience.

Powered by

Getting Started

Fundamentals

Social

Chat

Video

Support

Custom Message Overview

Flexible Structure

Interactive Content

Implementation Guide

Required Parameters

Optional Parameters

Code Examples

Custom Message Use Cases

Best Practices

Text Messages

Message Management

Real-Time Updates

Powered by

Getting Started

Fundamentals

Social

Chat

Video

Support

​Custom Message Overview

Flexible Structure

Interactive Content

​Implementation Guide

​Required Parameters

​Optional Parameters

​Code Examples

​Custom Message Use Cases

​Best Practices

​Related Features

Text Messages

Message Management

Real-Time Updates

Custom Message Overview

Implementation Guide

Required Parameters

Optional Parameters

Code Examples

Custom Message Use Cases

Best Practices

Related Features