Function cacheImageToBase64Image

app/utils/chat.ts:114–132

(imageUrl: string)

const imageCaches: Record<string, string> = {};
export function cacheImageToBase64Image(imageUrl: string) {
  if (imageUrl.includes(CACHE_URL_PREFIX)) {
    if (!imageCaches[imageUrl]) {
      const reader = new FileReader();
      return fetch(imageUrl, {
        method: "GET",
        mode: "cors",
        credentials: "include",
      })
        .then((res) => res.blob())
        .then(
          async (blob) =>
            (imageCaches[imageUrl] = await compressImage(blob, 256 * 1024)),
        ); // compressImage
    }
    return Promise.resolve(imageCaches[imageUrl]);
  }
  return Promise.resolve(imageUrl);
}

export function base64Image2Blob(base64Data: string, contentType: string) {
  const byteCharacters = atob(base64Data);