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mcp: introduce Requests (#267)

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Handlers and client/server methods take a single request argument
combining the session and params. This slightly simplifies the signature
for handlers, since there is no longer an often-ignored session
argument.

But more importantly, it opens the door to adding more information in
requests, such as auth info and HTTP request headers.

For #243.
This commit is contained in:
Jonathan Amsterdam 2025-08-12 17:49:50 -04:00 • committed by GitHub
commit 6e03217c83
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1 changed files with 517 additions and 380 deletions
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2
mcp/resource.go
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@ -35,7 +35,7 @@ type serverResourceTemplate struct {
// A ResourceHandler is a function that reads a resource.
// It will be called when the client calls [ClientSession.ReadResource].
// If it cannot find the resource, it should return the result of calling [ResourceNotFoundError].
type ResourceHandler func(context.Context, *ServerSession, *ReadResourceParams) (*ReadResourceResult, error)
type ResourceHandler func(context.Context, *ServerRequest[*ReadResourceParams]) (*ReadResourceResult, error)
// ResourceNotFoundError returns an error indicating that a resource being read could
// not be found.