darkfi/doc/src/learn/dchat/network-tools/accept-addr.md

Accept addr

To deploy the JsonRpcInterface and start receiving JSON-RPC requests, we'll need to configure a JSON-RPC accept address.

Let's return to our functions alice() and bob(). To enable Alice and Bob to connect to JSON-RPC, we'll need to generalize this return a RPC Url as well as a Settings.

Let's define a new struct called AppSettings that has two fields, Url and Settings.

{{#include ../../../../../example/dchat/src/main.rs:app_settings}}

Next, we'll change our alice() method to return a AppSettings instead of a Settings.

{{#include ../../../../../example/dchat/src/main.rs:alice}}

And the same for bob():

{{#include ../../../../../example/dchat/src/main.rs:bob}}

Update main() with the new type:

#[async_std::main]
async fn main() -> Result<()> {
    let settings: Result<AppSettings> = match std::env::args().nth(1) {
        Some(id) => match id.as_str() {
            "a" => alice(),
            "b" => bob(),
            _ => Err(ErrorMissingSpecifier.into()),
        },
        None => Err(ErrorMissingSpecifier.into()),
    };

    let settings = settings?.clone();

    let p2p = net::P2p::new(settings.net).await;
    //...
    }
}