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Fix: run mcp-server-hello-world in stateless HTTP mode #224

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Fix: run mcp-server-hello-world in stateless HTTP mode #224

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11 changes: 9 additions & 2 deletions mcp-server-hello-world/server/app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,15 @@
load_tools(mcp_server)

# Convert the MCP server to a streamable HTTP application
# This creates a FastAPI app that implements the MCP protocol over HTTP
mcp_app = mcp_server.http_app()
# This creates a FastAPI app that implements the MCP protocol over HTTP.
#
# stateless_http=True makes each request self-contained instead of requiring a
# prior session-initialization handshake. Some MCP clients (e.g. the Databricks
# Assistant) do not send the `mcp-session-id` header, which causes stateful
# servers to reject follow-up requests with HTTP 400. Stateless mode also plays
# nicely with horizontally scaled Databricks Apps where requests may land on
# different replicas.
mcp_app = mcp_server.http_app(stateless_http=True)

# ============================================================================
# FastAPI Application Setup
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