POC: deploy a streamable HTTP server on Databricks apps and connect to it from the client#1
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POC: deploy a streamable HTTP server on Databricks apps and connect to it from the client#1smurching wants to merge 2 commits intomainsmurching/python-sdk:mainfrom smurching/databricks-apps-pocsmurching/python-sdk:smurching/databricks-apps-pocCopy head branch name to clipboard
smurching wants to merge 2 commits intomainsmurching/python-sdk:mainfrom
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…o it from the client Signed-off-by: Sid Murching <sid.murching@databricks.com>
smurching
commented
May 7, 2025
| async def initialized_client_session(basic_server, basic_server_url): | ||
| """Create initialized StreamableHTTP client session.""" | ||
| async with streamablehttp_client(f"{basic_server_url}/mcp") as ( | ||
| token = "TODO add token here" |
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I used code like this to get an oauth token, after doing databricks auth login --profile fieldeng-oauth:
from databricks import sdk
w = sdk.WorkspaceClient(profile="fieldeng-oauth")
headers = w.config.authenticate()
print(headers)
Using a PAT to talk to apps doesn't work
Signed-off-by: Sid Murching <sid.murching@databricks.com>
smurching
commented
May 7, 2025
| "run", | ||
| "mcp-simple-streamablehttp", | ||
| "--port", | ||
| "8000", |
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Using port 8000 since that's what apps exposes by default, though this is configurable via environment variable
smurching
commented
May 8, 2025
| """Create initialized StreamableHTTP client session.""" | ||
| async with streamablehttp_client(f"{basic_server_url}/mcp") as ( | ||
| token = "TODO add token here" | ||
| async with streamablehttp_client(url=f"{basic_server_url}/mcp/", headers={'Authorization': f'Bearer {token}'}) as ( |
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Note: when running against the example server in the MCP repo, the client has to connect to /mcp/
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In this POC, I'm trying out deploying the example MCP server from the MCP Python SDK repo as a Databricks app, and then connecting to it using the Python client. To run the POC:
examples/servers/simple-streamablehttpfollowing the steps here (create app, sync code to workspace, deploy app)uv run pytest tests/shared/test_streamable_http.pyto test connecting to the app etcIt's also possible now to write your own custom client code that resembles the code in
uv run pytest tests/shared/test_streamable_http.py- just make sure you have mcp>=1.8.2 installed