From cad5e417f39c90a64b66a3e267e665d980fe6bee Mon Sep 17 00:00:00 2001
From: Daniel Gasienica <daniel@signal.org>
Date: Fri, 13 Apr 2018 22:14:58 -0400
Subject: [PATCH] Add `arrayBufferToObjectURL` module

---
 ts/util/arrayBufferToObjectURL.ts | 15 +++++++++++++++
 ts/util/index.ts                  |  3 ++-
 2 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 ts/util/arrayBufferToObjectURL.ts

diff --git a/ts/util/arrayBufferToObjectURL.ts b/ts/util/arrayBufferToObjectURL.ts
new file mode 100644
index 000000000..29bdb9eca
--- /dev/null
+++ b/ts/util/arrayBufferToObjectURL.ts
@@ -0,0 +1,15 @@
+/**
+ * @prettier
+ */
+import { MIMEType } from '../types/MIME';
+
+export const arrayBufferToObjectURL = ({
+  data,
+  type,
+}: {
+  data: ArrayBuffer;
+  type: MIMEType;
+}): string => {
+  const blob = new Blob([data], { type });
+  return URL.createObjectURL(blob);
+};
diff --git a/ts/util/index.ts b/ts/util/index.ts
index 9376b0e0b..03e5af330 100644
--- a/ts/util/index.ts
+++ b/ts/util/index.ts
@@ -2,6 +2,7 @@
  * @prettier
  */
 import * as GoogleChrome from './GoogleChrome';
+import { arrayBufferToObjectURL } from './arrayBufferToObjectURL';
 import { missingCaseError } from './missingCaseError';
 
-export { GoogleChrome, missingCaseError };
+export { arrayBufferToObjectURL, GoogleChrome, missingCaseError };