Methods

Talk Methods

All low-level TalkService methods are available on client.base.talk.

For example:

await client.base.talk.sendMessage({
    to: "u...",
    text: "Hello, Vylinejs!",
    e2ee: true,
});

This is an example of encrypting a text message with e2ee and sending it to a user.

LIFF

client.liff.sendLiff() shares up to five validated LIFF messages with a recipient. Use client.liff.shareMessage() for one message or client.liff.shareMessages() for a message list. Set liffId to select an app other than the client's default; forceIssue requests a fresh token, and tryConsent controls the consent flow.

import { liff } from "@nezumi0627/vylinejs";

await client.liff.sendLiff({
	to: "u-recipient-mid",
	messages: [
		liff.text("Hello", {
			label: "Vylinejs",
			iconUrl: "https://example.com/avatar.png",
		}),
	],
	tryConsent: true,
});

sentBy is optional display attribution on text messages. It does not alter the authenticated account. LIFF sharing is restricted and changeable; an API success does not guarantee delivery. Review feature status and LIFF cautions before depending on it.

Square Methods

Square/OpenChat methods are inherited from LINEJS and remain available as a legacy surface. Vylinejs does not actively support Square or promise routine maintenance for it. The example below shows the existing method shape only.

All low-level SquareService methods are available on client.base.square.

For example:

await client.base.square.findSquareByInvitationTicket({
    request: {
        invitationTicket: "INVITATION_TICKET",
    },
});

This is an example of getting square from invitation code.

BaseClient

If you just want simple api access or custom event handlers, you can use BaseClient.

For example:

import { BaseClient } from "@nezumi0627/vylinejs/base";


const client = new BaseClient({ device: "DESKTOPWIN", version: "9.7.0.3556" });
client.on("pincall", (pin) => {
});

client.on("qrcall", (qrUrl) => {
});

client.on("update:authtoken", (authToken) => {
});

await client.loginProcess.login({
	authToken: "...",
});

await client.loginProcess.login({
	email: "...",
	password: "...",
	pincode: "123456",
});

await client.loginProcess.login({
	qr: true,
});
await client.loginProcess.ready();

client.square // = SquareService
client.talk // = TalkService


// event polling
const polling = client.createPolling();

for await (const operation of polling.listenTalkEvents()) {
}

for await (const event of polling.listenSquareEvents()) {
}

Calling LINE REST endpoints directly

Some LINE subsystems (Album/Moa, for example) speak JSON over HTTPS through the LEGY proxy rather than Thrift, but Vylinejs's default getHeader("GET") helper is tuned for Thrift and sets accept: application/x-thrift and content-type: application/x-thrift. If you call a JSON REST endpoint with those defaults you may get {"code":102001,"message":"一時的なエラーが発生しました。"} back with HTTP 200.

When you hand-craft a REST request, override both headers to application/json:

const headers = {
  ...client.base.request.getHeader("GET"),
  accept: "application/json",
  "content-type": "application/json; charset=UTF-8",
  "X-Line-ChannelToken": token,
  "X-Line-Mid": client.base.profile!.mid,
};
const res = await client.base.fetch(url, {
  method: "POST",
  headers,
  body: new Uint8Array(),
  signal: AbortSignal.timeout(client.base.config.timeout),
});
if (!res.ok) throw new Error(`REST request failed: HTTP ${res.status}`);
const data = await res.json();
if (data.code !== undefined && data.code !== 0) {
  throw new Error(`REST request failed: code ${data.code}`);
}

Use client.base.moa for album operations; it handles these headers and checks HTTP and application errors for you.

LINE VOOM ended on 2026-09-30. LINE says access, post viewing and creation, and post-data restore ended with the service (official notice). Vylinejs keeps the old VOOM and Timeline exports temporarily for source compatibility, marks them deprecated, and fails immediately without issuing a token or making a request. There is no replacement for those endpoints.

LINE Official Accounts have a separate "Posts" feature, but it is not the former VOOM API and this library does not expose it as a replacement (LINE for Business notice).