Fastmcp logging progress example (#1270)

Co-authored-by: Felix Weinberger <[email protected]>

Author: stevebillings

examples/fastmcp/logging_and_progress.py

@@ -0,0 +1,33 @@
+"""
+FastMCP Echo Server that sends log messages and progress updates to the client
+"""
+
+import asyncio
+
+from mcp.server.fastmcp import Context, FastMCP
+
+# Create server
+mcp = FastMCP("Echo Server with logging and progress updates")
+
+
+@mcp.tool()
+async def echo(text: str, ctx: Context) -> str:
+    """Echo the input text sending log messages and progress updates during processing."""
+    await ctx.report_progress(progress=0, total=100)
+    await ctx.info("Starting to process echo for input: " + text)
+
+    await asyncio.sleep(2)
+
+    await ctx.info("Halfway through processing echo for input: " + text)
+    await ctx.report_progress(progress=50, total=100)
+
+    await asyncio.sleep(2)
+
+    await ctx.info("Finished processing echo for input: " + text)
+    await ctx.report_progress(progress=100, total=100)
+
+    # Progress notifications are process asynchronously by the client.
+    # A small delay here helps ensure the last notification is processed by the client.
+    await asyncio.sleep(0.1)
+
+    return text