Move address of grpc to rpc crate. But why static lifetime?

api/Cargo.toml

@@ -13,7 +13,3 @@ tenebrous-rpc = { path = "../rpc" }
 juniper = { git = "https://github.com/graphql-rust/juniper", branch = "master" }
 juniper_rocket_async = { git = "https://github.com/graphql-rust/juniper", branch = "master" }
 rocket = { git = "https://github.com/SergioBenitez/Rocket", branch = "master" }
-
-# [dependencies.tokio]
-# version = "1"
-# features = [ "full" ]

api/src/main.rs

@@ -6,26 +6,9 @@ use rocket::{response::content, Rocket, State};
 use std::env;
 use tenebrous_rpc::protos::dicebot::dicebot_client::DicebotClient;
 use tenebrous_rpc::protos::dicebot::GetVariableRequest;
-use tonic::{metadata::MetadataValue, transport::Channel as TonicChannel, Request as TonicRequest};
+use tonic::{transport::Channel as TonicChannel, Request as TonicRequest};
 use tracing_subscriber::filter::EnvFilter;
 
-//grpc stuff
-async fn create_client(
-    shared_secret: &str,
-) -> Result<DicebotClient<TonicChannel>, Box<dyn std::error::Error>> {
-    let channel = TonicChannel::from_static("http://0.0.0.0:9090")
-        .connect()
-        .await?;
-
-    let bearer = MetadataValue::from_str(&format!("Bearer {}", shared_secret))?;
-    let client = DicebotClient::with_interceptor(channel, move |mut req: TonicRequest<()>| {
-        req.metadata_mut().insert("authorization", bearer.clone());
-        Ok(req)
-    });
-
-    Ok(client)
-}
-
 //api stuff
 #[derive(GraphQLInputObject)]
 struct UserVariableArgument {
@@ -141,7 +124,7 @@ pub async fn main() -> Result<(), Box<dyn std::error::Error>> {
     tracing_subscriber::fmt().with_env_filter(filter).init();
 
     log::info!("Setting up gRPC connection");
-    let client = create_client("abc123").await?;
+    let client = tenebrous_rpc::create_client("http://localhost:9090", "abc123").await?;
 
     log::info!("Listening on 127.0.0.1:8080");
     let context = Context {

rpc/src/lib.rs

@@ -7,3 +7,22 @@ pub mod protos {
         tonic::include_proto!("dicebot");
     }
 }
+
+use protos::dicebot::dicebot_client::DicebotClient;
+use tonic::{metadata::MetadataValue, transport::Channel as TonicChannel, Request as TonicRequest};
+
+#[cfg(feature = "default")]
+pub async fn create_client(
+    address: &'static str,
+    shared_secret: &str,
+) -> Result<DicebotClient<TonicChannel>, Box<dyn std::error::Error>> {
+    let channel = TonicChannel::from_shared(address)?.connect().await?;
+
+    let bearer = MetadataValue::from_str(&format!("Bearer {}", shared_secret))?;
+    let client = DicebotClient::with_interceptor(channel, move |mut req: TonicRequest<()>| {
+        req.metadata_mut().insert("authorization", bearer.clone());
+        Ok(req)
+    });
+
+    Ok(client)
+}