Album (Moa)

MoaService exposes the LINE Album (Moa) REST API on client.base.moa. Unlike Talk / Square, Moa speaks JSON over HTTPS through the LEGY proxy, so this service uses client.base.fetch directly with a channel token issued for the album channel (1375220249).

Listing albums

import { loginWithAuthToken } from "@evex/linejs";

const client = await loginWithAuthToken("YOUR_AUTH_TOKEN", {
  device: "IOSIPAD",
});

let cursor = "";
while (true) {
  const resp = await client.base.moa.getAlbums({ cursor });
  const result = resp.result;
  for (const album of result?.albums ?? []) {
    console.log(`[${album.albumId}] ${album.title} (${album.photoCount} photos)`);
  }
  const next = result?.nextCursor ?? result?.cursor ?? "";
  if (!next || next === cursor || !(result?.hasMore ?? true)) break;
  cursor = next;
}

Listing photos in an album

let cursor = "";
while (true) {
  const resp = await client.base.moa.getPhotos({
    chatId: "cxxxxxxxxxxxxxxx",
    albumId: "1234567890123456789",
    cursor,
    pageSize: 100,
  });
  for (const photo of resp.result?.photos ?? []) {
    console.log(photo.oid, "shot at", photo.shotTime);
  }
  const next = resp.result?.nextCursor ?? "";
  if (!next || next === cursor) break;
  cursor = next;
}

Downloading the original bytes of a photo

downloadPhoto returns a Uint8Array so the caller can save it or process it further.

import { writeFileSync } from "node:fs";

const bytes = await client.base.moa.downloadPhoto({
  chatId: "cxxxxxxxxxxxxxxx",
  albumId: "1234567890123456789",
  oid: "someOid",
});
writeFileSync("./out.jpg", bytes);

For videos, pass prefix: "album/v" (the sid field on obsResourceId tells you whether the item is an image or a video):

const isVideo = photo.obsResourceId?.sid === "v";
const bytes = await client.base.moa.downloadPhoto({
  chatId,
  albumId,
  oid: photo.obsResourceId!.oid!,
  prefix: isVideo ? "album/v" : "album/a",
});

Notes

• The channel token issued for 1375220249 is memoised inside the service and reused within the same session. Changing the access token, MID or endpoint invalidates it. If the token is rejected (expiry or revocation), call client.base.moa.clearAlbumChannelToken() before an explicit retry. Requests are not automatically retried. REST requests and downloads use client.base.config.timeout.
• Moa uses X-Line-ChannelToken, X-Line-Mid (your MID) and — for photo fetches — X-Line-Album (the album id) and X-Line-Mid set to the chat id. All of these are set for you automatically.
• The header override accept: application/json is important: the default client.base.request.getHeader("GET") returns application/x-thrift, which LEGY rejects for REST endpoints with {"code":102001,"message":"一時的なエラーが発生しました。"}.