Adding Alt Text

Lets you tag media with alt tags for accessibility.

Signature:

public virtual async Task CreateMediaMetadataAsync(
    ulong mediaID, string altText, CancellationToken cancelToken = default(CancellationToken));

Parameters/Filters:

Name	Purpose	Type	Required
mediaID	ID of media.	ulong	yes
altText	Media description.	string	yes
cancelToken	Allows you to cancel async operation.	CancellationToken	no

Return Type: Status

v4.x Example:

            if (mediaID == 0)
                throw new ArgumentNullException(nameof(mediaID), $"Invalid {nameof(mediaID)} parameter: {mediaID}");

            if (string.IsNullOrWhiteSpace(altText))
                throw new ArgumentNullException(nameof(altText), $"The {nameof(altText)} parameter is empty or null and must have a value.");

            string updateUrl = UploadUrl + "media/metadata/create.json";

            RawResult =
                await TwitterExecutor.SendJsonToTwitterAsync(
                    HttpMethod.Post.ToString(),
                    updateUrl,
                    new MediaMetadata { MediaID = mediaID, AltText = new AltText { Text = altText } },
                    cancelToken)
                   .ConfigureAwait(false);

Twitter API: media/metadata/create