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feat: Support HTTP in MCP #6109

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Merged
ntkathole merged 13 commits into from
Apr 5, 2026
Merged

feat: Support HTTP in MCP #6109

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fc7974c
feat: Support HTTP in MCP
Anarion-zuo Mar 15, 2026
3b517b2
dev
Anarion-zuo Mar 15, 2026
e69098e
format
Anarion-zuo Mar 15, 2026
2725f43
fix
Anarion-zuo Mar 15, 2026
82bb408
fix
Anarion-zuo Mar 15, 2026
26a01a2
fix
Anarion-zuo Mar 15, 2026
d0c2832
dev
Anarion-zuo Mar 17, 2026
58cddeb
fix
Anarion-zuo Mar 17, 2026
face1ed
fix reviews
Anarion-zuo Mar 17, 2026
f9dec18
fix logger
Anarion-zuo Mar 17, 2026
18fedfe
fix logger test
Anarion-zuo Mar 17, 2026
4477742
fix comment
Anarion-zuo Mar 27, 2026
ea6358f
resolve comments
Anarion-zuo Mar 30, 2026
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resolve comments 
Signed-off-by: aaronzuo <anarionzuo@outlook.com>
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@Anarion-zuo @ntkathole
Anarion-zuo authored and ntkathole committed Apr 5, 2026
commit ea6358fda9fe0de85ca1a4b0451801a24cec5954
2 changes: 1 addition & 1 deletion .github/workflows/pr_integration_tests.yml
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Expand Up @@ -159,7 +159,7 @@ jobs:
-H "mcp-protocol-version: 2025-03-26" \
-H "mcp-session-id: ${SESSION_ID}" \
--data '{}' \
http://127.0.0.1:6566/mcp || true
http://127.0.0.1:6566/mcp

grep -Eq "^HTTP/.* 400" /tmp/mcp_headers2
grep -Eiq "^content-type: application/json" /tmp/mcp_headers2
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3 changes: 2 additions & 1 deletion sdk/python/feast/infra/mcp_servers/mcp_server.py
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Expand Up @@ -44,7 +44,7 @@ def add_mcp_support_to_app(app, store: FeatureStore, config) -> Optional["FastAp
description="Feast Feature Store MCP Server - Access feature store data and operations through MCP",
)

transport = getattr(config, "mcp_transport", "sse") or "sse"
transport = getattr(config, "mcp_transport", "sse")
if transport == "http":
mount_http = getattr(mcp, "mount_http", None)
if mount_http is None:
Expand All @@ -63,6 +63,7 @@ def add_mcp_support_to_app(app, store: FeatureStore, config) -> Optional["FastAp
)
mcp.mount()
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franciscojavierarceo marked this conversation as resolved.
else:
# Defensive guard for programmatic callers.
raise McpTransportNotSupportedError(
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@YassinNouh21 YassinNouh21 Mar 17, 2026

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This branch is unreachable — Literal["sse", "http"] in the config rejects anything else at parse time. Either remove it or add a comment that it's a defensive guard for programmatic callers.

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@YassinNouh21 YassinNouh21 Mar 17, 2026

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@Anarion-zuo u didn't solve it btw :)

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@franciscojavierarceo franciscojavierarceo Mar 25, 2026

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@Anarion-zuo any update on this one?

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@Anarion-zuo Anarion-zuo Mar 25, 2026

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Sorry. Missed this one. Will look at it ASAP.

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@Anarion-zuo Anarion-zuo Mar 27, 2026

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@YassinNouh21 Made some changes. Is this aligned with what you intended?

f"Unsupported mcp_transport={transport!r}. Expected 'sse' or 'http'."
)
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