Optionalallowed_Allowed mentions for the message
Optionalapplied_Array of tag ids to apply to the thread
OptionalattachmentsAttachment objects with filename and description
Optionalavatar_Override the default avatar of the webhook
OptionalcomponentsThe components to include with the message
Application-owned webhooks can always send components. Non-application-owned webhooks cannot send interactive components, and the components field will be ignored unless they set the with_components query param.
OptionalcontentThe message contents (up to 2000 characters)
OptionalembedsEmbedded rich content
OptionalflagsMessage flags combined as a bitfield
OptionalpollA poll!
Optionalthread_Name of thread to create
Available only if the webhook is in a forum channel and a thread is not specified in RESTPostAPIWebhookWithTokenQuery.thread_id query parameter
Optionalttstrue if this is a TTS message
OptionalusernameOverride the default username of the webhook
See
https://discord.com/developers/docs/resources/webhook#execute-webhook