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Migration from Twitch.js to v5

Make sure your Node version is new enough

Node versions below v12.11 are not supported by Twurple. Please make sure you're at least on this version - anything older than the v12.x branch is out of support anyway.

Install and import new packages

The packages were moved to a new NPM scope named @twurple. Here's the old and new packages for comparison:


Switch from Kraken to Helix

The namespace .kraken was completely removed from the ApiClient. Please migrate to the respective Helix counterparts.

Switch from WebHooks to EventSub

The legacy WebHooks product was deprecated by Twitch and is going to be removed on September 16th.

The @twurple/eventsub package is very similar in usage to the old twitch-webhooks package. Please check the documentation on EventSub for further information.

Replace default imports with named imports

Default exports have been deprecated in 4.2 from all packages that had them. Their named counterparts have been added at the same time and the docs have been encouraging their use ever since.

If your code was written for Twitch.js version 4.1 or lower, you might still have these default imports in your code, and it's time to replace them now, as they're being removed.

import ApiClient from 'twitch';
import ChatClient from 'twitch-chat-client';
import PubSubClient from 'twitch-pubsub-client';
import { ApiClient } from '@twurple/api';
import { ChatClient } from '@twurple/chat';
import { PubSubClient } from '@twurple/pubsub';

Move all EventSubListener constructor parameters into the options object

To be more consistent with other classes in the package family, the properties apiClient and secret were added to EventSubListenerConfig. An object of that type is now the only parameter of the EventSubListener constructor.

Replace use of MiddlewareAdapter with the new EventSubMiddleware class

A separate listener and a middleware for an existing listener share a lot of common code. Still, but to make better use of their differences, the listener class was split and the MiddlewareAdapter was in turn removed. Instead, you can use the new EventSubMiddleware class to apply a middleware to your existing Express app.

The "old" way and the "new" way are too different, so instead of a complicated diff, we prefer to just link you to the EventSubMiddleware documentation for a comprehensive example.

Clean up your EventSub subscriptions before running the upgraded code for the first time

To be able to add additional endpoints to the EventSub listener (other than events), the base path of the EventSub event callbacks has changed. This means that Twitch will keep trying to access your old callbacks, wasting traffic. You should clean up your subscriptions in some way, for example by calling the EventSub API:


Use string literals rather than enums

A few types were changes from enums to literal strings. Please make sure you look for these types and replace them with literals:

  • CheermoteBackground
  • CheermoteScale
  • CheermoteState
  • HelixBanEventType
  • HelixBroadcasterType
  • HelixModeratorEventType
  • HelixStreamType
  • HelixSubscriptionEventType
  • HelixUserType
  • TwitchApiCallType

Fix camel case capitalization

During the 4.x series, a few classes, interfaces, enums and properties that were named with improper camel case have been renamed, and the old counterparts were deprecated. Please check your usage of the following properties:

Use the new logger configuration

Previously, a few classes exposed a logLevel parameter that allowed you to set the log level directly.

Now, this parameter was replaced with a logger parameter everywhere that exposes the full logger configuration.

To facilitate this with your usual level of granularity, please change your code as such:

const chat = new ChatClient({
	logLevel: 'debug',
	logger: {
		minLevel: 'debug'

Easier logger configuration

You probably want to check out the new global logging configuration via environment variables.

In most cases, it's much easier to set up.

Replace RefreshableAuthProvider with RefreshingAuthProvider & make use of the new fully serializable AccessToken interface

The old RefreshableAuthProvider was clunky to use. It was initially intended to make it easy to add refreshing to any existing AuthProvider implementation, but that benefit never went past the basic StaticAuthProvider wrapping.

In turn, it is being removed and replaced by a standalone provider called RefreshingAuthProvider which doesn't need to wrap another provider anymore. Its parameters are divided into two parts:

  • The static data, i.e. app credentials and refresh callback
  • The initial token data, which is just an AccessToken object

The mentioned AccessToken was changed from a class to a fully serializable interface. This has two implications:

  • On the downside, it loses a few convenience getters like .isExpired - use the free-standing functions like accessTokenIsExpired instead.
  • On the upside, you can now just write the data to a file/database/etc. and read it back from there without any manual conversion shenanigans.
const tokenData = JSON.parse(await fs.readFile('./tokens.json', 'UTF-8'));
const tokenData: AccessToken = JSON.parse(await fs.readFile('./tokens.json', 'UTF-8'));
const auth = new RefreshableAuthProvider(
	new StaticAuthProvider(clientId, tokenData.accessToken),
		refreshToken: tokenData.refreshToken,
		expiry: tokenData.expiryTimestamp === null ? null : new Date(tokenData.expiryTimestamp),
		onRefresh: async ({ accessToken, refreshToken, expiryDate }) => {
			const newTokenData = {
				expiryTimestamp: expiryDate === null ? null : expiryDate.getTime()
			await fs.writeFile('./tokens.json', JSON.stringify(newTokenData, null, 4), 'UTF-8')
const auth = new RefreshingAuthProvider(
		onRefresh: async newTokenData => await fs.writeFile('./tokens.json', JSON.stringify(newTokenData, null, 4), 'UTF-8')

Use AuthProviders directly

Previously, ApiClient exposed a few helper methods to instantiate it with an AuthProvider created internally.

In order to decouple these components from each other, these helpers were removed. Instead, you should now instantiate the providers by yourself.

Additionally, some token related helpers on the ApiClient have been removed. You should call them on the provider directly, or use the free-standing helper functions. Both the providers and the helpers are now exported from the @twurple/auth package.

Examples for the most common use cases:

Static token (for quick testing)

const api = await ApiClient.withCredentials(clientId, accessToken);
const authProvider = new StaticAuthProvider(clientId, accessToken);
const api = new ApiClient({ authProvider });

Refreshing token (for continuous access to user data)

const api = await ApiClient.withCredentials(clientId, accessToken, undefined, {
	onRefresh: newTokenData => { /* refresh callback */ }
const authProvider = new RefreshingAuthProvider(
		onRefresh: async newTokenData => { /* refresh callback, ATTENTION: new data format */ }
const api = new ApiClient({ authProvider });

App access token (for server-to-server requests without scopes)

const api = ApiClient.withClientCredentials(clientId, clientSecret);
const authProvider = new ClientCredentialsAuthProvider(clientId, clientSecret);
const api = new ApiClient({ authProvider });

Replace API clients with auth providers and remove usage of helpers in other packages

Similarly to the above, the helper ChatClient.forTwitchClient has been removed. Instead, pass the auth provider to the constructor directly.

As you may also have noticed, the authProvider isn't a separate parameter anymore, but was integrated into the options object.

const api = new ApiClient({ authProvider });
const chat = ChatClient.forTwitchClient(api);
const chat = new ChatClient({ authProvider });

Also, the different PubSub classes now take auth providers instead of API clients.

const api = new ApiClient({ authProvider });
await pubsub.registerUserListener(api);
await pubsub.registerUserListener(authProvider);

Pass cheermote formatting options directly to the respective methods

It was previously possible to add defaults for displaying cheermotes to the ApiClient. These defaults were removed - now you have to pass all display options to HelixCheermoteList#getCheermoteDisplayInfo} and HelixCheermoteList#parseMessage} as well as {@link TwitchPrivateMessage#parseEmotesAndBits}}.

Remove use of the preAuth and initialScopes properties in ApiConfig

The properties preAuth and initialScopes were dangerous, as they left a dangling promise when constructing an ApiClient.

They were replaced by the safer method ApiClient#requestScopes}, which you can call (and more importanly, await) by yourself.

{@link ElectronAuthProvider} now requires at least Electron 9

Electron versions below 9 are way past their support time by now. Please update to a supported version.

Check your bot type in the ChatClient instantiation

ChatClient now applies rate limiting by default. If your bot is a known or verified bot, it may now use way lower rate limits than it could theoretically use.

Please investigate the properties ChatClientOptions#botLevel and ChatClientOptions#isAlwaysMod to raise them appropriately to your bot status.

Rename PubSubRedemptionMessage's rewardName property

The property rewardName was renamed to rewardTitle to be consistent with the API and EventSub versions of the same data. Please update your code accordingly.

Remove our typos

See, we all make mistakes sometimes. But we fixed them, and we ask you to fix them too (otherwise your code will break).

declare const reward: HelixCustomReward;

Update your own AuthProvider implementation

If you built your own auth provider, its interface now requires setting the tokenType property to one of the strings user or app depending on which type of OAuth token it yields. You probably want this to be user.

Update log level passing for BasicPubSubClient

In the past, it was possible to directly pass a log level to the BasicPubSubClient constructor.

Now, only the usual logger configuration is valid.

new BasicPubSubClient('error')
new BasicPubSubClient({ logger: { minLevel: 'error' } })

Check usage of setId in {@link ChatEmote}

The property setId was moved from the class {@link ChatEmote} to its new subclass {@link ChatEmoteWithSet} to better reflect when a setId is available and when it isn't. Previously, a setId of -1 was the indicator for a missing set ID. Now, instead, you should be aware of which methods return a set and which do not.

[TypeScript] Check your callApi calls

From now on, callApi returns unknown by default, rather than any. This may lead to a lot of compiler errors.

Please specify your return types properly in order to fix them.

Alternatively, you may silence the errors (hopefully temporarily!) by passing any as type parameter explicitly.

const data = await api.callApi({ url: 'users' });
const data = await api.callApi<any>({ url: 'users' });

[TypeScript] Remove the external port setting from EventSub adapter constructors

The external port settings for various ConnectionAdapter implementations were removed, since Twitch requires port 443 externally anyway.

While in regular JavaScript, this will just be silently ignored, it will make the TypeScript compiler fail, so remove it from your code - it probably didn't work anyway.

[Deprecation] Remove usage of the .helix namespace

The namespace .helix has been deprecated. All the Helix sub-namespaces now live directly on the ApiClient.

const me = await api.helix.users.getMe();
const me = await api.users.getMe();

[Deprecation] Use the Helix Chat namespaces instead of the Badges namespace

The Badges namespace is a basically-unofficial part of the Twitch API. Since the Helix Chat namespace contains the same functionality, you should use it instead.