Select Control

Select controls provide a dropdown interface for choosing from a predefined set of options. They support both static option lists and dynamic options that are fetched asynchronously, making them ideal for configuration choices and API-driven selections.

Basic Usage

import * as i from '@xentom/integration-framework';

// Simple static options
i.controls.select({
  label: 'HTTP Method',
  placeholder: 'Choose a method',
  options: [
    { value: 'GET', label: 'GET' },
    { value: 'POST', label: 'POST' },
    { value: 'PUT', label: 'PUT' },
    { value: 'DELETE', label: 'DELETE' },
  ],
});

Configuration Options

Prop

Type

Static Options

For fixed sets of choices, use a static array of options:

// Simple value/label pairs
priority: i.pins.data({
  control: i.controls.select({
    label: 'Priority Level',
    placeholder: 'Select priority...',
    options: [
      { value: 'low', label: 'Low Priority' },
      { value: 'medium', label: 'Medium Priority' },
      { value: 'high', label: 'High Priority' },
      { value: 'urgent', label: 'Urgent' },
    ],
  }),
});

// Options with descriptions
region: i.pins.data({
  control: i.controls.select({
    label: 'AWS Region',
    options: [
      {
        value: 'us-east-1',
        label: 'US East (N. Virginia)',
        description: 'Primary AWS region for US customers',
      },
      {
        value: 'us-west-2',
        label: 'US West (Oregon)',
        description: 'West coast AWS region',
      },
      {
        value: 'eu-west-1',
        label: 'Europe (Ireland)',
        description: 'Primary AWS region for European customers',
      },
    ],
  }),
});

Dynamic Options

For options that need to be fetched from external sources, use an async callback function. Note: Dynamic options are only supported for node pins, not environment variables.

// Fetch options from API
apiEndpoint: i.pins.data({
  control: i.controls.select({
    label: 'API Endpoint',
    placeholder: 'Select an endpoint...',
    options: async ({ state }) => {
      // Access shared integration state
      const client = state.apiClient;
      const endpoints = await client.getEndpoints();

      return endpoints.map((endpoint) => ({
        value: endpoint.url,
        label: endpoint.name,
        description: `${endpoint.method} ${endpoint.path}`,
      }));
    },
  }),
});

// Database-driven options
userId: i.pins.data({
  control: i.controls.select({
    label: 'User',
    placeholder: 'Select a user...',
    options: async ({ state }) => {
      const users = await state.database.getUsers();
      return users.map((user) => ({
        value: user.id,
        label: user.displayName,
        description: user.email,
      }));
    },
  }),
});

Option Structure

Each option in the array must follow this structure:

Prop

Type

Complex Value Types

Select controls aren't limited to string values - they can handle any serializable data type:

// Object values
database: i.pins.data({
  control: i.controls.select({
    label: 'Database Connection',
    options: [
      {
        value: { host: 'localhost', port: 5432, name: 'dev_db' },
        label: 'Development Database',
        description: 'Local development environment',
      },
      {
        value: { host: 'prod.example.com', port: 5432, name: 'prod_db' },
        label: 'Production Database',
        description: 'Live production environment',
      },
    ],
  }),
});

// Numeric values
timeout: i.pins.data({
  control: i.controls.select({
    label: 'Request Timeout',
    options: [
      { value: 5000, label: '5 seconds' },
      { value: 10000, label: '10 seconds' },
      { value: 30000, label: '30 seconds' },
      { value: 60000, label: '1 minute' },
    ],
  }),
});

Caching Dynamic Options

For expensive API calls, implement caching in your integration state:

// In your integration definition
async start({ state }) {
  state.optionsCache = new Map();
  state.apiClient = new ApiClient();
}

// In your select control
options: async ({ state }) => {
  const cacheKey = 'api_endpoints';

  if (state.optionsCache.has(cacheKey)) {
    return state.optionsCache.get(cacheKey);
  }

  const endpoints = await state.apiClient.getEndpoints();
  const options = endpoints.map(ep => ({
    value: ep.id,
    label: ep.name,
    description: `${ep.method} ${ep.path}`
  }));

  // Cache for 5 minutes
  state.optionsCache.set(cacheKey, options);
  setTimeout(() => {
    state.optionsCache.delete(cacheKey);
  }, 5 * 60 * 1000);

  return options;
}

Common Patterns

HTTP Methods

method: i.pins.data({
  control: i.controls.select({
    label: 'HTTP Method',
    defaultValue: 'GET',
    options: [
      { value: 'GET', label: 'GET', description: 'Retrieve data' },
      { value: 'POST', label: 'POST', description: 'Create new resource' },
      { value: 'PUT', label: 'PUT', description: 'Update entire resource' },
      { value: 'PATCH', label: 'PATCH', description: 'Partial update' },
      { value: 'DELETE', label: 'DELETE', description: 'Remove resource' },
    ],
  }),
});

Content Types

contentType: i.pins.data({
  control: i.controls.select({
    label: 'Content Type',
    defaultValue: 'application/json',
    options: [
      { value: 'application/json', label: 'JSON' },
      { value: 'application/xml', label: 'XML' },
      { value: 'text/plain', label: 'Plain Text' },
      { value: 'text/html', label: 'HTML' },
    ],
  }),
});

Environment-Specific Configuration

// For environment variables (static options only)
ENVIRONMENT: i.env({
  control: i.controls.select({
    label: 'Environment',
    description: 'Target deployment environment',
    options: [
      { value: 'development', label: 'Development' },
      { value: 'staging', label: 'Staging' },
      { value: 'production', label: 'Production' },
    ],
  }),
});

Usage Context

Select controls can be used in two contexts:

Environment Variables: Only static options are supported
Node Pins: Both static and dynamic options are supported

Dynamic options provide powerful integration with external data sources but require careful consideration of performance and caching strategies.

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