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fix: add | undefined to transport option callbacks for exactOptionalPropertyTypes #1855

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Merged
domdomegg merged 3 commits into from
May 4, 2026
Merged

fix: add | undefined to transport option callbacks for exactOptionalPropertyTypes #1855

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4cbeade
fix: add | undefined to optional callback types for exactOptionalProp…
Christian-Sidak Apr 6, 2026
14e5744
Add changeset for server package exactOptionalPropertyTypes fix
Christian-Sidak Apr 10, 2026
b8cd277
Merge branch 'main' into fix/session-id-generator-undefined-type
Christian-Sidak Apr 21, 2026
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4 changes: 2 additions & 2 deletions packages/middleware/node/test/streamableHttp.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -42,8 +42,8 @@ interface TestServerConfig {
enableJsonResponse?: boolean;
customRequestHandler?: (req: IncomingMessage, res: ServerResponse, parsedBody?: unknown) => Promise<void>;
eventStore?: EventStore;
onsessioninitialized?: (sessionId: string) => void | Promise<void>;
onsessionclosed?: (sessionId: string) => void | Promise<void>;
onsessioninitialized?: ((sessionId: string) => void | Promise<void>) | undefined;
onsessionclosed?: ((sessionId: string) => void | Promise<void>) | undefined;
retryInterval?: number;
}

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10 changes: 5 additions & 5 deletions packages/server/src/server/streamableHttp.ts
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Expand Up @@ -77,7 +77,7 @@ export interface WebStandardStreamableHTTPServerTransportOptions {
*
* If not provided, session management is disabled (stateless mode).
*/
sessionIdGenerator?: () => string;
sessionIdGenerator?: (() => string) | undefined;

/**
* A callback for session initialization events
Expand All @@ -86,7 +86,7 @@ export interface WebStandardStreamableHTTPServerTransportOptions {
* and need to keep track of them.
* @param sessionId The generated session ID
*/
onsessioninitialized?: (sessionId: string) => void | Promise<void>;
onsessioninitialized?: ((sessionId: string) => void | Promise<void>) | undefined;

/**
* A callback for session close events
Expand All @@ -98,7 +98,7 @@ export interface WebStandardStreamableHTTPServerTransportOptions {
* session open/running.
* @param sessionId The session ID that was closed
*/
onsessionclosed?: (sessionId: string) => void | Promise<void>;
onsessionclosed?: ((sessionId: string) => void | Promise<void>) | undefined;

/**
* If `true`, the server will return JSON responses instead of starting an SSE stream.
Expand Down Expand Up @@ -233,8 +233,8 @@ export class WebStandardStreamableHTTPServerTransport implements Transport {
private _enableJsonResponse: boolean = false;
private _standaloneSseStreamId: string = '_GET_stream';
private _eventStore?: EventStore;
private _onsessioninitialized?: (sessionId: string) => void | Promise<void>;
private _onsessionclosed?: (sessionId: string) => void | Promise<void>;
private _onsessioninitialized?: ((sessionId: string) => void | Promise<void>) | undefined;
private _onsessionclosed?: ((sessionId: string) => void | Promise<void>) | undefined;
private _allowedHosts?: string[];
private _allowedOrigins?: string[];
private _enableDnsRebindingProtection: boolean;
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