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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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12
mcp/server_test.go
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@ -281,10 +281,10 @@ func TestServerCapabilities(t *testing.T) {
s.AddResourceTemplate(&ResourceTemplate{URITemplate: "file:///rt"}, nil)
},
serverOpts: ServerOptions{
SubscribeHandler: func(ctx context.Context, _ *ServerSession, sp *SubscribeParams) error {
SubscribeHandler: func(context.Context, *ServerRequest[*SubscribeParams]) error {
return nil
},
UnsubscribeHandler: func(ctx context.Context, _ *ServerSession, up *UnsubscribeParams) error {
UnsubscribeHandler: func(context.Context, *ServerRequest[*UnsubscribeParams]) error {
return nil
},
},
@ -307,7 +307,7 @@ func TestServerCapabilities(t *testing.T) {
name: "With completions",
configureServer: func(s *Server) {},
serverOpts: ServerOptions{
CompletionHandler: func(ctx context.Context, ss *ServerSession, params *CompleteParams) (*CompleteResult, error) {
CompletionHandler: func(context.Context, *ServerRequest[*CompleteParams]) (*CompleteResult, error) {
return nil, nil
},
},
@ -325,13 +325,13 @@ func TestServerCapabilities(t *testing.T) {
s.AddTool(tool, nil)
},
serverOpts: ServerOptions{
SubscribeHandler: func(ctx context.Context, _ *ServerSession, sp *SubscribeParams) error {
SubscribeHandler: func(context.Context, *ServerRequest[*SubscribeParams]) error {
return nil
},
UnsubscribeHandler: func(ctx context.Context, _ *ServerSession, up *UnsubscribeParams) error {
UnsubscribeHandler: func(context.Context, *ServerRequest[*UnsubscribeParams]) error {
return nil
},
CompletionHandler: func(ctx context.Context, ss *ServerSession, params *CompleteParams) (*CompleteResult, error) {
CompletionHandler: func(context.Context, *ServerRequest[*CompleteParams]) (*CompleteResult, error) {
return nil, nil
},
},