fix: blob datatype issues where blob as arraybufferlike had no bytele…

…ngth (#182)

* fix: remove unused package from lock

* fix: fixed blob data type issue where blob as arraybufferlike had no bytelength in the browser

* fix: remove erroneous browser check

* fix: we need node 18 to be blob friendly

.github/workflows/CI.yml

@@ -32,7 +32,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node: ["16"]
+        node: ["18"]
 
     runs-on: ${{ matrix.os }}
 

.github/workflows/docs.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node: ["16"]
+        node: ["18"]
 
     runs-on: ${{ matrix.os }}
 

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
     name: Release / Node ${{ matrix.node }}
     strategy:
       matrix:
-        node: ["16"]
+        node: ["18"]
 
     runs-on: ubuntu-latest
 

package.json

@@ -29,6 +29,9 @@
     "dist",
     "src"
   ],
+  "engines": {
+    "node": ">=18.0.0"
+  },
   "main": "dist/main/index.js",
   "module": "dist/module/index.js",
   "types": "dist/module/index.d.ts",

src/packages/LiveClient.ts

@@ -2,13 +2,15 @@ import { EventEmitter } from "events";
 import { appendSearchParams, isBrowser } from "../lib/helpers";
 import WebSocket from "modern-isomorphic-ws";
 import { LiveConnectionState, LiveTranscriptionEvents } from "../lib/enums";
+import { DEFAULT_HEADERS } from "../lib/constants";
+import { DeepgramError } from "../lib/errors";
+
 import type {
   LiveSchema,
   LiveConfigOptions,
   LiveMetadataEvent,
   LiveTranscriptionEvent,
 } from "../lib/types";
-import { DEFAULT_HEADERS } from "../lib/constants";
 
 export class LiveClient extends EventEmitter {
   private _socket: WebSocket;
@@ -101,16 +103,21 @@ export class LiveClient extends EventEmitter {
    * Sends data to the Deepgram API via websocket connection
    * @param data Audio data to send to Deepgram
    *
-   * Conforms to RFC #146 - does not send an empty byte.
+   * Conforms to RFC #146 for Node.js - does not send an empty byte.
+   * In the browser, a Blob will contain length with no audio.
    * @see https://github.com/deepgram/deepgram-python-sdk/issues/146
    */
-  public send(data: string | ArrayBufferLike | ArrayBufferView): void {
+  public send(data: string | ArrayBufferLike | Blob): void {
     if (this._socket.readyState === LiveConnectionState.OPEN) {
       if (typeof data === "string") {
         this._socket.send(data); // send text data
+      } else if ((data as any) instanceof Blob) {
+        this._socket.send(data as unknown as ArrayBufferLike); // send blob data
       } else {
-        if (data.byteLength > 0) {
-          this._socket.send(data); // send buffer when not zero-byte
+        const buffer = data as ArrayBufferLike;
+
+        if (buffer.byteLength > 0) {
+          this._socket.send(buffer); // send buffer when not zero-byte (or browser)
         } else {
           this.emit(
             LiveTranscriptionEvents.Warning,
@@ -119,7 +126,7 @@ export class LiveClient extends EventEmitter {
         }
       }
     } else {
-      this.emit(LiveTranscriptionEvents.Error, "Could not send. Connection not open.");
+      throw new DeepgramError("Could not send. Connection not open.");
     }
   }