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fix(openai): use new Function trick for node: dynamic imports #33

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Merged
OwenMcGirr merged 1 commit into from
Apr 8, 2026
Merged

fix(openai): use new Function trick for node: dynamic imports #33

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31 changes: 19 additions & 12 deletions src/engines/openai.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ export interface OpenAITTSOptions extends SpeakOptions {
/** OpenAI Speed (maps to rate) */
speed?: number;
/** Output format */
format?: 'mp3' | 'opus' | 'aac' | 'flac' | 'wav' | 'pcm';
format?: "mp3" | "opus" | "aac" | "flac" | "wav" | "pcm";

/**
* Output directory for audio files
Expand Down Expand Up @@ -174,7 +174,7 @@ export class OpenAITTSClient extends AbstractTTSClient {
return this.client;
}

this.clientLoadingPromise = (new Function('m','return import(m)') as any)("openai")
this.clientLoadingPromise = (new Function("m", "return import(m)") as any)("openai")
.then((openaiModule: any) => {
const OpenAIClass = openaiModule.OpenAI;
this.client = new OpenAIClass({
Expand Down Expand Up @@ -250,7 +250,7 @@ export class OpenAITTSClient extends AbstractTTSClient {
* @returns Array of required credential field names
*/
protected getRequiredCredentials(): string[] {
return ['apiKey'];
return ["apiKey"];
}

/**
Expand Down Expand Up @@ -391,12 +391,14 @@ export class OpenAITTSClient extends AbstractTTSClient {
*/
async textToSpeech(text: string, options: OpenAITTSOptions = {}): Promise<string> {
if (typeof window !== "undefined") {
throw new Error("textToSpeech with file output is not supported in the browser. Use synthToBytes or synthToBytestream instead.");
throw new Error(
"textToSpeech with file output is not supported in the browser. Use synthToBytes or synthToBytestream instead."
);
}
// Node.js only
const importNodeBuiltin = async (name: string) => import(`node:${name}`);
const fs = await importNodeBuiltin("fs");
const path = await importNodeBuiltin("path");
const importNodeBuiltin = (name: string) => new Function("m", "return import(m)")(name);
const fs = await importNodeBuiltin("node:fs");
const path = await importNodeBuiltin("node:path");
try {
// Create output directory if it doesn't exist
const outputDir = options.outputDir || ".";
Expand Down Expand Up @@ -436,11 +438,13 @@ export class OpenAITTSClient extends AbstractTTSClient {
*/
async textToSpeechStreaming(text: string, options: OpenAITTSOptions = {}): Promise<string> {
if (typeof window !== "undefined") {
throw new Error("textToSpeechStreaming with file output is not supported in the browser. Use synthToBytes or synthToBytestream instead.");
throw new Error(
"textToSpeechStreaming with file output is not supported in the browser. Use synthToBytes or synthToBytestream instead."
);
}
const importNodeBuiltin = async (name: string) => import(`node:${name}`);
const fs = await importNodeBuiltin("fs");
const path = await importNodeBuiltin("path");
const importNodeBuiltin = (name: string) => new Function("m", "return import(m)")(name);
const fs = await importNodeBuiltin("node:fs");
const path = await importNodeBuiltin("node:path");
try {
// Create output directory if it doesn't exist
const outputDir = options.outputDir || ".";
Expand Down Expand Up @@ -588,7 +592,10 @@ export class OpenAITTSClient extends AbstractTTSClient {
* @param _options Synthesis options (currently unused for streaming, uses defaults).
* @returns Promise resolving to an object containing the audio stream and an empty word boundaries array.
*/
async synthToBytestream(text: string, _options?: SpeakOptions): Promise<{
async synthToBytestream(
text: string,
_options?: SpeakOptions
): Promise<{
audioStream: ReadableStream<Uint8Array>;
wordBoundaries: Array<{ text: string; offset: number; duration: number }>;
}> {
Expand Down
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