create component from blob

Author: zefir-git

src/Component.ts

@@ -54,6 +54,18 @@ export class Component implements Part {
         return new Component(file.type.length > 0 ? {"Content-Type": file.type} : {}, await file.arrayBuffer());
     }
 
+    /**
+     * Create a Component from a {@link !Blob}. If blob media type is available,
+     * it will be set in the `Content-Type` header. The blob's contents will be used as the part's body.
+     *
+     * This method might be slow if a large file is provided as the blob contents need to be read.
+     *
+     * @param blob Blob to create the component from
+     */
+    public static async blob(blob: Blob) {
+        return new Component(blob.type.length > 0 ? {"Content-Type": blob.type} : {}, await blob.arrayBuffer());
+    }
+
     public bytes(): Uint8Array {
         const result: ArrayLike<number>[] = [];
         for (const [key, value] of this.headers.entries())