fetch expires less than 1s

[aris-2]

Hi, I'm creating an API to retrieve messages from nats, is there an alternative to fetch that skips the wait of at least 1s to retrieve messages?
since I need to have response times less than 1s

const sub = await consumer.fetch({expires:1000})

[derekcollison]

What language are you working in? We have a newer JS API that has a Consume() method which from a client perspective is similar to a push consumer.

[Jarema]

This looks like javascript API, so I would reach to @aricart

However, you can get responses immediately, even if you have high expires value.

[aricart]

@aristelecom consumers currently limit expires to be 1s or greater. Otherwise your clients would slam on the server.

The only time the client would take 1s is If there are no messages or the number of messages you requested are not available. In your case, you are requesting 100 messages so if there are less than that, the request will not close until the expires hits. You can specify max_messages to change the default 100 message. Or you can use next() to just request the next message.