Issue connecting to an Unix socket

[anjannath]

AsyncHTTPClient release: 1.2.3 (using in Xcode)

Context:
While trying to send a POST request to a unix socket, i get the following error and stack trace, however am able to talk to the same unix socket using curl --unix-socket ~/test.sock -d {"key":"value"} http://api but fails from swift using AsyncHTTPClient

I am trying to use this library in Xcode to build a GUI macOS app

2021-02-15 23:51:33.657622+0530 [10776:2468640] [] -[NWConcrete_nw_address_endpoint port] Can't fetch port for address family: 1
2021-02-15 23:51:33.657739+0530 [10776:2468639] [] nw_socket_set_common_sockopts [C1:1] setsockopt SO_NECP_CLIENTUUID failed [22: Invalid argument]
2021-02-15 23:51:33.657778+0530 [10776:2468639] [] nw_socket_set_common_sockopts setsockopt SO_NECP_CLIENTUUID failed [22: Invalid argument]
2021-02-15 23:51:33.657814+0530 [10776:2468639] [] nw_socket_set_no_delay [C1:1] setsockopt TCP_NODELAY failed [102: Operation not supported on socket]
2021-02-15 23:51:33.657854+0530 [10776:2468639] [] nw_socket_set_no_delay setsockopt TCP_NODELAY failed [102: Operation not supported on socket]
2021-02-15 23:51:33.658072+0530 [10776:2468639] [] nw_socket_set_no_delay setsockopt TCP_NODELAY failed [102: Operation not supported on socket], dumping backtrace:
        [x86_64] libnetcore-1880.120.4
    0   libnetwork.dylib                    0x00007fff6c498eb8 __nw_create_backtrace_string + 120
    1   libnetwork.dylib                    0x00007fff6c1c0f03 nw_socket_set_no_delay + 579
    2   libnetwork.dylib                    0x00007fff6c1b99f2 nw_socket_set_common_sockopts + 13698
    3   libnetwork.dylib                    0x00007fff6c127cea nw_socket_initialize_socket + 1738
    4   libnetwork.dylib                    0x00007fff6c126204 nw_socket_add_input_handler + 772
    5   libnetwork.dylib                    0x00007fff6c124776 nw_endpoint_flow_attach_socket_protocol + 374
    6   libnetwork.dylib                    0x00007fff6c11b1eb nw_endpoint_flow_attach_protocols + 7851
    7   libnetwork.dylib                    0x00007fff6c11669a nw_endpoint_flow_setup_protocols + 2794
    8   libnetwork.dylib                    0x00007fff6c139a03 -[NWConcrete_nw_endpoint_flow startWithHandler:] + 4451
    9   libnetwork.dylib                    0x00007fff6c1354e7 nw_endpoint_handler_path_change + 7239
    10  libnetwork.dylib                    0x00007fff6c12fada nw_endpoint_handler_start + 1210
    11  libnetwork.dylib                    0x00007fff6c12f474 __nw_connection_start_block_invoke + 788
    12  libdispatch.dylib                   0x000000010129a844 _dispatch_call_block_and_release + 12
    13  libdispatch.dylib                   0x000000010129b826 _dispatch_client_callout + 8
    14  libdispatch.dylib                   0x00000001012a5525 _dispatch_workloop_invoke + 3149
    15  libdispatch.dylib                   0x00000001012b0fe0 _dispatch_workloop_worker_thread + 691
    16  libsystem_pthread.dylib             0x0000000101329361 _pthread_wqthread + 290
    17  libsystem_pthread.dylib             0x000000010132849b start_wqthread + 15
2021-02-15 23:51:33.658635+0530 [10776:2468640] [] -[NWConcrete_nw_address_endpoint port] Can't fetch port for address family: 1
2021-02-15 23:51:33.658652+0530 [10776:2468639] [] nw_socket_setup_notsent_lowat [C1:1] setsockopt TCP_NOTSENT_LOWAT(16384) failed on fd 4 [102: Operation not supported on socket]
2021-02-15 23:51:33.658692+0530 [10776:2468639] [] nw_socket_setup_notsent_lowat setsockopt TCP_NOTSENT_LOWAT(16384) failed on fd 4 [102: Operation not supported on socket]
2021-02-15 23:51:33.658719+0530 [10776:2468640] [] -[NWConcrete_nw_address_endpoint port] Can't fetch port for address family: 1
2021-02-15 23:51:33.658791+0530 [10776:2468639] [] nw_socket_setup_notsent_lowat setsockopt TCP_NOTSENT_LOWAT(16384) failed on fd 4 [102: Operation not supported on socket], dumping backtrace:
        [x86_64] libnetcore-1880.120.4
    0   libnetwork.dylib                    0x00007fff6c498eb8 __nw_create_backtrace_string + 120
    1   libnetwork.dylib                    0x00007fff6c1c84e4 nw_socket_setup_notsent_lowat + 884
    2   libnetwork.dylib                    0x00007fff6c1c74c6 nw_socket_handle_socket_event + 1622
    3   libdispatch.dylib                   0x000000010129b826 _dispatch_client_callout + 8
    4   libdispatch.dylib                   0x000000010129e67d _dispatch_continuation_pop + 585
    5   libdispatch.dylib                   0x00000001012b4635 _dispatch_source_invoke + 2135
    6   libdispatch.dylib                   0x00000001012a5316 _dispatch_workloop_invoke + 2622
    7   libdispatch.dylib                   0x00000001012b0fe0 _dispatch_workloop_worker_thread + 691
    8   libsystem_pthread.dylib             0x0000000101329361 _pthread_wqthread + 290
    9   libsystem_pthread.dylib             0x000000010132849b start_wqthread + 15
notFound
2021-02-15 23:51:33.664536+0530 [10776:2468639] [] nw_endpoint_flow_fillout_tcp_info_block_invoke getsockopt TCP_INFO failed [102: Operation not supported on socket]
2021-02-15 23:51:33.664579+0530 [10776:2468639] [] nw_connection_copy_connected_local_endpoint [C1] Connection has no local endpoint

Steps to reproduce: Using something similar to following to send the request

class client {
    let httpClient: HTTPClient
    
    init() {
        self.httpClient = HTTPClient(eventLoopGroupProvider: .createNew)
    }
    
    deinit {
        try? self.httpClient.syncShutdown()
    }
    
    
    func getStatus() {
        do {
            let reqJson = try JSONEncoder().encode(Request(command: "status", args: nil))
            if let response = try? self.httpClient.execute(.POST,
                                                           socketPath: "/Users/anjan/test.sock",
                                                           urlPath: "/api",
                                                           body: .string(String(data: reqJson, encoding: .utf8)!)).wait() {
                print(response.status)
            }
        }
        catch (let err) {
            print(err)
        }
    }
}

$ swift --version
Apple Swift version 5.3.2 (swiftlang-1200.0.45 clang-1200.0.32.28)
Target: x86_64-apple-darwin19.6.0

Operating system: macOS catalina 10.15.7

$ uname -a
19.6.0 Darwin Kernel Version 19.6.0

[Lukasa]

Are you sure it fails? It seems that what you're actually printing is .notFound. The rest of the logs come from Network.framework, and while they're loud they aren't actually impeding with the functioning of the library. Everything seems to be working fine here.

[anjannath]

Thanks! Closing this :)