Message not ephemeral in function generators

[solaris7x]

TL;DR :

Messages are not set as ephemeral when deferring response using yield in function generators

Info:

I need to perform an async request thus I use function generator to defer the discord response until my network operations are complete , To do so I used function generators to yield discord then return proper response after the network operation.

Using yield causes discord message to NOT be ephemeral and thus visible to everyone . I tried both <Message> and returning Object with content + flags: 64

Demo command handler:

function beepGen(): CommandHandler<Env> {
  useDescription("Send a boop");
  return async function* (interaction, env, ctx) {
   // Remove yield below and message will be ephemeral as expected
    yield;
    return <Message ephemeral>🤖 Boop from slshx 🤖</Message>;
  };
}

Expected:

Message response for above function to be ephemeral and only visible to invoker of discord command

Related

discordjs/discord.js#5702

[mrbbot]

Hey! 👋 Thanks for reporting this. From that related issue it looks like this is an API limitation. I wonder if it's possible to return flags here though:

slshx/src/interactions/response.ts

Lines 48 to 51 in 77c5d8c

	return jsonResponse<
	| APIInteractionResponseDeferredChannelMessageWithSource
	| APIInteractionResponseDeferredMessageUpdate
	>({ type: resType });

Could maybe do something like:

function beepGen(): CommandHandler<Env> {
  useDescription("Send a boop");
  return async function* (interaction, env, ctx) {
   // Remove yield below and message will be ephemeral as expected
    yield $ephemeral;
    return <Message ephemeral>🤖 Boop from slshx 🤖</Message>;
  };
}

[solaris7x]

As far as I understand from the referred issue , the ephemeral state cannot be changed by the follow up message but only the content , thus to make a message ephemeral , the 1st instance of it should be passed flag ephemeral

I think this could be done by passing the flags to data property of APIInteractionResponseDeferredChannelMessageWithSource

export interface APIInteractionResponseDeferredChannelMessageWithSource {
	type: InteractionResponseType.DeferredChannelMessageWithSource;
	data?: Pick<APIInteractionResponseCallbackData, 'flags'>;
}

https://github.com/discordjs/discord-api-types/blob/8e87b3e1ce35201503623839602c44fe2a52a27b/payloads/v9/_interactions/responses.ts#L48-L51