Choosing the correct user

In general, Twurple automatically decides for you which user a call should be executed as.

There are mostly three categories of requests:

1. For calls that require authentication, the required user (or the app token) is always automatically chosen, and if that user is not available in your auth provider, the call will fail.

2. Other calls, such as getting a stream by user ID, are in the context of a user, but do not require authentication. In this case, Twurple will try using that user's authentication, but if it's not available, fall back to app authentication.

3. Lastly, there are a few calls where user context can never be determined, so they will always be called using an app token:

   Category	Method
   Bits	HelixBitsApi#getCheermotes (without broadcaster parameter)
   Channel	HelixChannelApi#getChannelInfoByIds
   Chat	HelixChatApi#getGlobalBadges
   Chat	HelixChatApi#getGlobalEmotes
   Chat	HelixChatApi#getEmotesFromSets
   Chat	HelixChatApi#getColorsForUsers
   Clips	HelixClipApi#getClipsForGame
   Clips	HelixClipApi#getClipsByIds
   Clips	HelixClipApi#getClipById
   Extensions	HelixExtensionsApi#getReleasedExtension
   Games	every method of HelixGameApi
   Search	every method of HelixSearchApi
   Streams	HelixStreamApi#getStreams
   Streams	HelixStreamApi#getStreamsByUserNames
   Streams	HelixStreamApi#getStreamByUserName
   Streams	HelixStreamApi#getStreamsByUserIds
   Teams	HelixTeamApi#getTeamById
   Teams	HelixTeamApi#getTeamByName
   Users	HelixUserApi#getUsersByIds
   Users	HelixUserApi#getUsersByNames
   Users	HelixUserApi#getUserByName
   Videos	HelixVideoApi#getVideosByIds
   Videos	HelixVideoApi#getVideoById
   Videos	HelixVideoApi#getVideosByGame

   Deprecated methods & paginated variants have been omitted for brevity.

Overriding optional user context

For the resources in categories 2 and 3, you can override the user context to a specified user ID using the asUser method:

const videoId = await apiClient.asUser('125328655', ctx => {
	const video = ctx.videos.getVideoById(videoId);
	return video.id;
});

Alternatively, you can use intents using the ApiClient#asIntent method.