feat: expose createBlobReaderStream

stardazed · Jul 22, 2022 · c9db3d0 · c9db3d0
1 parent f181721
commit c9db3d0
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/packages/streams-fetch-adapter/dist/sd-streams-fetch-adapter.d.ts b/packages/streams-fetch-adapter/dist/sd-streams-fetch-adapter.d.ts
@@ -82,6 +82,16 @@ export declare function createAdaptedResponse(
 	customReadableStreamTee: ReadableStreamTeeFunction
 ): ResponseConstructor;
 
+/**
+ * Create a reader for a Blob using FileReader. Given that FileReader has to use the Blob's
+ * stream() to read it, only use this for Blob implementations without a stream function to
+ * avoid likely endless recursion or other weirndess.
+ * @param blob The blob to read the data from
+ * @param streamCtor A constructor for the ReadableStream to create
+ * @returns A readable stream for the blob
+ */
+ export function createBlobReaderStream(blob: Blob, streamCtor: ReadableStreamConstructor): ReadableStream;
+
 /**
  * Wrap the Blob constructor to add or patch handling of Blob's stream function.
  * @param nativeBlob The constructor function of the browser's built in Blob class

diff --git a/packages/streams-fetch-adapter/src/sd-streams-fetch-adapter.ts b/packages/streams-fetch-adapter/src/sd-streams-fetch-adapter.ts
@@ -373,7 +373,7 @@ export function createAdaptedResponse(
  * @param streamCtor A constructor for the ReadableStream to create
  * @returns A readable stream for the blob
  */
-function createBlobReaderStream(blob: Blob, streamCtor: ReadableStreamConstructor) {
+export function createBlobReaderStream(blob: Blob, streamCtor: ReadableStreamConstructor) {
 	const reader = new FileReader();
 	let reading = false;