mcp-adapter.util.ts•1.45 kB
import type { McpContentResponse } from "./mcp-content.types";
/**
* MCP Adapter Utilities
*
* Utilities for adapting between standard MCP responses and MCP content format.
* These functions handle the transformation from McpResponse to the content format
* expected by the MCP server.
*/
import type { McpResponse } from "./mcp-response.types";
/**
* Transforms McpResponse to the content format expected by MCP server
*
* @param response - Original MCP response object
* @returns Response in the format expected by MCP server
*/
export function adaptToMcpContent(response: McpResponse): McpContentResponse {
return {
content: [
{
type: "text",
text: response.success
? typeof response.data === "string"
? response.data
: JSON.stringify(response.data, null, 2)
: response.error || "Unknown error",
},
],
isError: !response.success,
errorCode: response.errorCode,
};
}
/**
* Handler adapter that transforms MCP responses to MCP content format
*
* @param handler - Original handler function returning McpResponse
* @returns Handler compatible with MCP server expected format
*/
export function adaptHandler<T>(
handler: (params: T) => Promise<McpResponse> | McpResponse,
): (args: T) => Promise<McpContentResponse> {
return async (args: T) => {
const response = await handler(args);
return adaptToMcpContent(response);
};
}