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capture sse responses for streamable http transport #297

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shivdeepak
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Motivation and Context

I am trying to get Streamable HTTP Transport working on my local, and noticed that it's still experimental, lacks the capability to stream the response back to the client.

This change will allow the MCP Server to respond properly with Streamable HTTP Transport.

First PR on this Project. Please let me know if there are any specific guidelines I should be following.

How Has This Been Tested?

This is now part of the test suite, and be individually tested by running:

npx jest src/server/streamableHttp.test.ts -t 'Connect to a MCP Server'

Breaking Changes

No

Types of changes

  • Connect HTTP Streaming Transport to MCP Server such that responses are sent back to the client.

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

NA

@shivdeepak
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shivdeepak commented Apr 9, 2025

@ihrpr saw your latest commits. would love to hear your thought on this.

@shivdeepak shivdeepak force-pushed the connect-streamable-http-transport-to-mcp-server branch from 789ceef to b5df61b Compare April 9, 2025 15:16
@ihrpr
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ihrpr commented Apr 9, 2025

@shivdeepak Thank you for looking into this!
It should be fixed with this PR, please can try with examples from this page and let me know if it doesn't work.

@shivdeepak
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@ihrpr the example server works with my Postman client. 👍

@shivdeepak shivdeepak closed this Apr 10, 2025
@shivdeepak shivdeepak deleted the connect-streamable-http-transport-to-mcp-server branch April 10, 2025 02:46
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2 participants