Function processLink

apps/web/services/slack/sync/attachments.ts:80–111

(
  token: string,
  channelId: string,
  logger: Logger
)

}

function processLink(
  token: string,
  channelId: string,
  logger: Logger
): (file: MessageFile) => Promise<{ fileId?: string; internalUrl?: string }> {
  return async function (file: MessageFile) {
    if (!file.url_private) return {};
    try {
      const response = await fetchFile(file.url_private, token);
      const ext = path.extname(file.name);
      const name = slugify(file.name.substring(0, file.name.indexOf(ext)));

      const s3Key = [
        BUCKET_PREFIX_FOR_ATTACHMENTS,
        channelId,
        random() + name + ext,
      ].join('/');

      await uploadFile({
        Key: s3Key,
        Body: Buffer.from(response.text || response.body),
      });
      return {
        fileId: file.id,
        internalUrl: [LINEN_STATIC_CDN, s3Key].join('/'),
      };
    } catch (error) {
      logger.error({ error });
      return {};
    }
  };
}

function arrayToMapGeneric(key: string, val: string) {
  return (prev: any, curr: any) => {