Stream type defaults to unknown

Author: inlined

src/common/providers/https.ts

@@ -156,7 +156,7 @@ export interface CallableRequest<T = any> {
  * CallableProxyResponse allows streaming response chunks and listening to signals
  * triggered in events such as a disconnect.
  */
-export interface CallableResponse<T = string> {
+export interface CallableResponse<T = unknown> {
   /**
    * Writes a chunk of the response body to the client. This method can be called
    * multiple times to stream data progressively.
@@ -720,7 +720,7 @@ export interface CallableOptions {
 }
 
 /** @internal */
-export function onCallHandler<Req = any, Res = any, Stream = string>(
+export function onCallHandler<Req = any, Res = any, Stream = unknown>(
   options: CallableOptions,
   handler: v1CallableHandler | v2CallableHandler<Req, Res, Stream>,
   version: "gcfv1" | "gcfv2"
@@ -741,7 +741,7 @@ function encodeSSE(data: unknown): string {
 }
 
 /** @internal */
-function wrapOnCallHandler<Req = any, Res = any, Stream = string>(
+function wrapOnCallHandler<Req = any, Res = any, Stream = unknown>(
   options: CallableOptions,
   handler: v1CallableHandler | v2CallableHandler<Req, Res, Stream>,
   version: "gcfv1" | "gcfv2"

src/v2/providers/https.ts

@@ -226,7 +226,7 @@ export type HttpsFunction = ((
 /**
  * Creates a callable method for clients to call using a Firebase SDK.
  */
-export interface CallableFunction<T, Return, Stream = string> extends HttpsFunction {
+export interface CallableFunction<T, Return, Stream = unknown> extends HttpsFunction {
   /** Executes the handler function with the provided data as input. Used for unit testing.
    * @param data - An input for the handler function.
    * @returns The output of the handler function.
@@ -360,7 +360,7 @@ export function onRequest(
  * @param handler - A function that takes a {@link https.CallableRequest}.
  * @returns A function that you can export and deploy.
  */
-export function onCall<T = any, Return = any | Promise<any>, Stream = string>(
+export function onCall<T = any, Return = any | Promise<any>, Stream = unknown>(
   opts: CallableOptions,
   handler: (request: CallableRequest<T>, response?: CallableResponse<Stream>) => Return
 ): CallableFunction<T, Return extends Promise<unknown> ? Return : Promise<Return>, Stream>;
@@ -370,10 +370,10 @@ export function onCall<T = any, Return = any | Promise<any>, Stream = string>(
  * @param handler - A function that takes a {@link https.CallableRequest}.
  * @returns A function that you can export and deploy.
  */
-export function onCall<T = any, Return = any | Promise<any>, Stream = string>(
+export function onCall<T = any, Return = any | Promise<any>, Stream = unknown>(
   handler: (request: CallableRequest<T>, response?: CallableResponse<Stream>) => Return
 ): CallableFunction<T, Return extends Promise<unknown> ? Return : Promise<Return>>;
-export function onCall<T = any, Return = any | Promise<any>, Stream = string>(
+export function onCall<T = any, Return = any | Promise<any>, Stream = unknown>(
   optsOrHandler: CallableOptions | ((request: CallableRequest<T>) => Return),
   handler?: (request: CallableRequest<T>, response?: CallableResponse<Stream>) => Return
 ): CallableFunction<T, Return extends Promise<unknown> ? Return : Promise<Return>> {