mcp-image-placeholder/dist/index.js

MCP server for generating placeholder images using placehold.co and picsum.photos

/**
 * Main entry point for MCP Image Placeholder package
 * Provides both programmatic API and backward compatibility
 */
// Export core classes for programmatic usage
export { PlaceholderValidator } from './core/validator.js';
export { PlaceholderGenerator } from './core/placeholderGenerator.js';
export { MCPImagePlaceholderServer } from './core/mcpServer.js';
// Export configuration factories
export { createConfig, createValidationConstraints, createProviderConfig, DEFAULT_CONFIG, DEFAULT_CONSTRAINTS, DEFAULT_PROVIDER_CONFIG, } from './config/index.js';
// Export utility functions
export { createLogger } from './utils/logger.js';
// Export error classes
export { ImagePlaceholderError, ValidationError, ProviderError, ConfigurationError, ServerError, } from './errors/index.js';
// Backward compatibility: Legacy function that matches original API
import { PlaceholderValidator } from './core/validator.js';
import { createValidationConstraints, createProviderConfig } from './config/index.js';
/**
 * Legacy function for backward compatibility with original API
 *
 * @deprecated Use PlaceholderGenerator class for better error handling and logging
 * @param provider - Image provider ('placehold' or 'lorem-picsum')
 * @param width - Image width (1-10000)
 * @param height - Image height (1-10000)
 * @returns Promise resolving to image URL string
 * @throws {Error} When parameters are invalid
 */
export function image_placeholder(provider, width, height) {
    const constraints = createValidationConstraints();
    const providerConfig = createProviderConfig();
    const validator = new PlaceholderValidator(constraints);
    // Validate and generate synchronously for backward compatibility
    validator.validateParams({ provider, width, height });
    // Extract URL generation logic for synchronous operation
    const config = providerConfig[provider];
    if (!config) {
        throw new Error(`Invalid provider: ${provider}`);
    }
    const url = config.urlTemplate
        .replace('{baseUrl}', config.baseUrl)
        .replace('{width}', width.toString())
        .replace('{height}', height.toString());
    return url;
}
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