HRMP Channels

Cross-chain messaging between parachains.

TOML

[[hrmp_channels]]
sender = 1000
recipient = 2000
max_capacity = 8
max_message_size = 512

[[hrmp_channels]]
sender = 2000
recipient = 1000
max_capacity = 8
max_message_size = 512

Builder

#![allow(unused)]
fn main() {
let config = NetworkConfigBuilder::new()
    .with_relaychain(|r| { /* ... */ })
    .with_parachain(|p| p.with_id(1000).with_collator(|c| c.with_name("col1")))
    .with_parachain(|p| p.with_id(2000).with_collator(|c| c.with_name("col2")))
    .with_hrmp_channel(|h| h.with_sender(1000).with_recipient(2000))
    .with_hrmp_channel(|h| h.with_sender(2000).with_recipient(1000))
    .build()
    .unwrap();
}

Reference