Inital build

frontend/node_modules/tus-js-client/lib/node/sources/BufferSource.js

@@ -0,0 +1,15 @@
+export default class BufferSource {
+  constructor(buffer) {
+    this._buffer = buffer
+    this.size = buffer.length
+  }
+
+  slice(start, end) {
+    const value = this._buffer.slice(start, end)
+    value.size = value.length
+    const done = end >= this.size
+    return Promise.resolve({ value, done })
+  }
+
+  close() {}
+}