/**
* Get Heroku app logs
*/
import { json, error, type ToolDefinition } from "../lib/mcp-core.js";
import { getLogSession, fetchLogs } from "../lib/heroku-api.js";
export const getLogsTool: ToolDefinition = {
name: "heroku_get_logs",
description: "Get recent logs from a Heroku app. Can filter by dyno or source.",
inputSchema: {
type: "object",
properties: {
appName: {
type: "string",
description: "Name of the Heroku app",
},
lines: {
type: "number",
description: "Number of log lines to retrieve (default: 100)",
},
dyno: {
type: "string",
description: "Filter by dyno name (e.g., web.1, worker.1)",
},
source: {
type: "string",
description: "Filter by source (app or heroku)",
enum: ["app", "heroku"],
},
},
required: ["appName"],
},
handler: async (args) => {
try {
const appName = args.appName as string;
const lines = (args.lines as number) || 100;
const dyno = args.dyno as string | undefined;
const source = args.source as string | undefined;
// Create log session
const session = await getLogSession(appName, { lines, dyno, source });
// Fetch logs from logplex URL
const logs = await fetchLogs(session.logplex_url);
return json({
app: appName,
lines_requested: lines,
filters: {
dyno: dyno || "all",
source: source || "all",
},
logs: logs,
});
} catch (err) {
return error(`Failed to get logs: ${err instanceof Error ? err.message : err}`);
}
},
};
