feat(client): add transport abstraction for Client class#1973
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felixweinberger wants to merge 1 commit intomainfrom
Closed
feat(client): add transport abstraction for Client class#1973felixweinberger wants to merge 1 commit intomainfrom
felixweinberger wants to merge 1 commit intomainfrom
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- Add transports subpackage with Transport protocol - Add HttpTransport for Streamable HTTP connections - Add SSETransport for legacy SSE connections - Move InMemoryTransport to transports subpackage - Update Client to accept Server, FastMCP, Transport, or URL string - Add _infer_transport() helper for automatic transport selection - URL strings automatically use HttpTransport (modern standard) - Add comprehensive tests for transport inference and Client usage This enables connecting to MCP servers over HTTP in addition to the existing in-memory transport for testing.
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Closing in favor of #1972 reviewing that insteaad |
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Summary
Adds a
Transportprotocol and concrete transport implementations (HttpTransport,SseTransport,InMemoryTransport) so that different transports can be used via theClientinterface.Motivation and Context
The
Clientclass currently only supports in-memory connections to server instances. This change introduces a transport abstraction so thatClientcan connect over Streamable HTTP, SSE, or in-memory, with automatic inference from the target type.How Has This Been Tested?
test_transport_inference.py)test_client_transports.py)Breaking Changes
None - this is additive.
Types of changes
Checklist
Additional context
ClientTarget = Server[Any] | FastMCP | Transport | str- the Client now accepts server instances directly, transport instances, or URL strings, and infers the appropriate transport automatically.