http api client adjustment (#5953)

* missing feature lock for attempting to clone client

* added helper macro to generate user agent without additional imports

common/http-api-client/src/lib.rs

@@ -173,6 +173,10 @@ mod path;
 #[cfg(not(target_arch = "wasm32"))]
 pub use dns::{HickoryDnsError, HickoryDnsResolver};
 
+// helper for generating user agent based on binary information
+#[doc(hidden)]
+pub use nym_bin_common::bin_info;
+
 /// Default HTTP request connection timeout.
 ///
 /// The timeout is relatively high as we are often making requests over the mixnet, where latency is
@@ -608,6 +612,7 @@ impl Client {
             current_idx: Arc::new(Default::default()),
             reqwest_client: self.reqwest_client.clone(),
 
+            #[cfg(feature = "tunneling")]
             front: self.front.clone(),
             retry_limit: self.retry_limit,
 

common/http-api-client/src/user_agent.rs

@@ -20,6 +20,16 @@ pub struct UserAgent {
     pub git_commit: String,
 }
 
+/// Create `UserAgent` based on the caller's crate information
+// we can't use normal function as then `application` and `version` would correspond
+// of that of `nym-http-api-client` lib
+#[macro_export]
+macro_rules! generate_user_agent {
+    () => {
+        $crate::UserAgent::from($crate::bin_info!())
+    };
+}
+
 #[derive(Clone, Debug, thiserror::Error)]
 #[error("invalid user agent string: {0}")]
 pub struct UserAgentError(String);