There are a number of things I'd like to do:

1. If a path is not defined

   • Try to serve a static file from some configured directory
   • If no static file exists at the path, produce custom JSON HTTP 404 (but I guess more generally provide custom HTTP errors when API functions aren't called)

   The intent is to serve an AngularJS app and it seems avoidable to run nginx etc when silicon should be capable of throwing some HTML/JS/CSS files back at a browser. From reading the docs, I got the impression that using a middleware is the way to go but couldn't see how the path interception would happen, seems all middleware are created before a request and destroyed when it's completed but if a path doesn't match a middleware wouldn't be called right?

2. I want to drop in wangle as a backend, is there a ref of things to do, not to do.

On both 1 and 2, I've had a quick browse of the code for mhd and it seems whether it's possible depends on the functionality of the backend, https://github.com/matt-42/silicon/blob/master/silicon/backends/mhd.hh#L363 for example appears to just do a hand off to microhttpd, is that right or have I missed something?

Hi, I just wanted to install silicon but I got the following error:

CMake Error at /usr/local/Cellar/cmake/3.1.0/share/cmake/Modules/CMakePackageConfigHelpers.cmake:254 (file): file RELATIVE_PATH must be passed a full path to the file: Call Stack (most recent call first): CMakeLists.txt:17 (configure_package_config_file)

The log file CMakeOutput.log does not seem to include useful information.

OS: OS X Yosemite 10.10.1

clang: Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix

cmake: cmake version 3.1.0 CMake suite maintained and supported by Kitware (kitware.com/cmake).

from https://github.com/matt-42/iod, it seems we can use named optional function arguments to do it, but could you please give a simple example on the right syntax?

I'd like to write a code like this:

PUT / _region * post_parameters(_id = int(),
                                                        _x = int(),
                                                        _y = int(),
                                                        _width = int(),
                                                        _height = int(),
                                                        _comment = std::string(),
                                                        _type = std::string(),
                                                        _near = std::vector<int>()) = [] (auto p) {
                                                   return regionController.put(p.id,
                                                                               p.x,
                                                                               p.y,
                                                                               p.width,
                                                                               p.height,
                                                                               p.comment,
                                                                               p.type,
                                                                               p.near);
                                               }

but I receive a static_assert with

"Target type is neither std::istream`able nor std::wistream`able" 

text

Here is the console output: 09:55:21 **** Incremental Build of configuration Debug for project SiliconTest **** make pre-build main-build iod_generate_symbols ../main.cpp ../symbols.h

Building file: ../main.cpp Invoking: Cross G++ Compiler g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.o" -o "main.o" "../main.cpp" In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh: In instantiation of ‘auto sl::make_ws_route(const E&) [with E = iod::function_call_exp<s::_message_t, s::_text_t>]’: /usr/include/silicon/remote_api.hh:40:41: required from ‘auto sl::make_ws_remote_api(P ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’ /usr/include/silicon/backends/websocketpp_remote_client.hh:106:34: required from ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’ ../main.cpp:100:59: required from here /usr/include/silicon/backends/ws_api.hh:144:21: error: no matching function for call to ‘route_cat(sl::ws_route<>, const iod::function_call_exp<s::_message_t, s::_text_t>&)’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:12:0, from ../main.cpp:39: /usr/include/silicon/http_route.hh:284:8: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const sl::http_route<R2 ...>&) auto route_cat(const http_route<R1...>& r1, ^~~~~~~~~ /usr/include/silicon/http_route.hh:284:8: note: template argument deduction/substitution failed: In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:12:0, from ../main.cpp:39: /usr/include/silicon/http_route.hh:291:8: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const R2&) auto route_cat(const http_route<R1...>& r1, ^~~~~~~~~ /usr/include/silicon/http_route.hh:291:8: note: template argument deduction/substitution failed: In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:13:0, from ../main.cpp:39: /usr/include/silicon/rmq_route.hh:164:7: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const sl::rmq::route<R2 ...>&) auto route_cat(rmq::route<R1...> const & r1, ^~~~~~~~~ /usr/include/silicon/rmq_route.hh:164:7: note: template argument deduction/substitution failed: In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:13:0, from ../main.cpp:39: /usr/include/silicon/rmq_route.hh:171:7: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const R2&) auto route_cat(rmq::route<R1...> const & r1, ^~~~~~~~~ /usr/include/silicon/rmq_route.hh:171:7: note: template argument deduction/substitution failed: In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:118:8: note: candidate: template<class S, class P, class SS> auto sl::route_cat(sl::ws_route<S, P>, const iod::symbol&) auto route_cat(ws_route<S, P> r, const iod::symbol& s) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:118:8: note: template argument deduction/substitution failed: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const iod::symbol’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:124:8: note: candidate: template<class S, class P, class T> auto sl::route_cat(sl::ws_route<S, P>, const sl::params_t&) auto route_cat(ws_route<S, P> r, const params_t& s) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:124:8: note: template argument deduction/substitution failed: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const sl::params_t’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:130:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::div_exp<L, R>&) auto route_cat(ws_route<S, P> r, const iod::div_exp<L, R>& e) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:130:8: note: template argument deduction/substitution failed: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const iod::div_exp<L, R>’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:136:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::mult_exp<L, R>&) auto route_cat(ws_route<S, P> r, const iod::mult_exp<L, R>& e) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:136:8: note: template argument deduction/substitution failed: /usr/include/silicon/backends/ws_api.hh:144:21: note: ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const iod::mult_exp<L, R>’ return route_cat(ws_route<>(), e); ~~~~~~~~~^~~~~~~~~~~~~~~~~ In file included from ../main.cpp:40:0: /usr/include/silicon/remote_api.hh: In instantiation of ‘auto sl::make_ws_remote_api(P ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’: /usr/include/silicon/backends/websocketpp_remote_client.hh:106:34: required from ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’ ../main.cpp:100:59: required from here /usr/include/silicon/remote_api.hh:40:27: error: invalid use of void expression return std::make_tuple(make_ws_route(procs)...); ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/silicon/backends/websocketpp.hh:13:0, from ../main.cpp:41: /usr/include/silicon/backends/websocketpp_remote_client.hh: In instantiation of ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’: ../main.cpp:100:59: required from here /usr/include/silicon/backends/websocketpp_remote_client.hh:106:48: error: ‘void api’ has incomplete type auto api = make_ws_remote_api(procedures...); ^ /usr/include/silicon/backends/websocketpp_remote_client.hh:108:36: error: use of ‘auto iod::assignable::operator=(L&&) const [with L = std::shared_ptrsl::wspp_remote_client_ctx&; E = s::_silicon_ctx_t]’ before deduction of ‘auto’ auto accessor = D(_silicon_ctx = c); ~~~~~~~~~~~~~^~~ /usr/include/silicon/backends/websocketpp_remote_client.hh: In instantiation of ‘struct sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]::<lambda(struct sl::wspp_connection)>’: /usr/include/silicon/backends/websocketpp_remote_client.hh:116:5: required from ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’ ../main.cpp:100:59: required from here /usr/include/silicon/backends/websocketpp_remote_client.hh:111:13: error: using invalid field ‘sl::make_wspp_remote_client(const P& ...)::<lambda(sl::wspp_connection)>::’ return [rc] (wspp_connection c) { ^~ ../main.cpp: In function ‘int main(int, char**)’: ../main.cpp:100:59: error: ‘void rclient’ has incomplete type auto rclient = make_wspp_remote_client( _message(_text) ); ^ In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh: In instantiation of ‘sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)>::<lambda(auto:67)> [with auto:67 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::message_t>, main(int, char**)::<lambda(auto:136)> >}]’: /usr/include/iod/utils.hh:24:19: required from ‘decltype(auto) iod::static_if::operator()(F, G, A&& ...) [with F = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:66)>; G = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:67)>; A = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >&}]’ /usr/include/iod/utils.hh:31:27: required from ‘decltype(auto) iod::static_if(F, G, A&& ...) [with bool C = false; F = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:66)>; G = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:67)>; A = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >&}]’ /usr/include/silicon/api.hh:210:59: required from ‘sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’ /usr/include/iod/foreach.hh:116:29: required from ‘decltype(auto) iod::internal::tuple_foreach(F, T1&&, T&& ...) [with F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; T1 = std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&; T = {}]’ /usr/include/iod/foreach.hh:146:44: required from ‘decltype(auto) iod::internal::foreach_tuple_caller::run(F, std::index_sequence<I ...>) [with F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; long unsigned int ...I = {0ul}; T = std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&>; std::index_sequence<I ...> = std::integer_sequence<long unsigned int, 0ul>]’ /usr/include/iod/foreach.hh:152:76: required from ‘decltype(auto) iod::internal::foreach_tuple_caller::operator|(F) [with F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; T = std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&>]’ /usr/include/silicon/api.hh:208:25: required from ‘auto sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’ /usr/include/silicon/backends/ws_api.hh:150:21: required from ‘auto sl::ws_api(P ...) [with P = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’ ../main.cpp:110:5: required from here /usr/include/silicon/api.hh:216:29: error: no matching function for call to ‘route_cat(sl::ws_route<>&, iod::function_call_exp<s::_broadcast_t, s::_message_t>&)’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:12:0, from ../main.cpp:39: /usr/include/silicon/http_route.hh:284:8: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const sl::http_route<R2 ...>&) auto route_cat(const http_route<R1...>& r1, ^~~~~~~~~ /usr/include/silicon/http_route.hh:284:8: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:12:0, from ../main.cpp:39: /usr/include/silicon/http_route.hh:291:8: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const R2&) auto route_cat(const http_route<R1...>& r1, ^~~~~~~~~ /usr/include/silicon/http_route.hh:291:8: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:13:0, from ../main.cpp:39: /usr/include/silicon/rmq_route.hh:164:7: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const sl::rmq::route<R2 ...>&) auto route_cat(rmq::route<R1...> const & r1, ^~~~~~~~~ /usr/include/silicon/rmq_route.hh:164:7: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/api.hh:13:0, from ../main.cpp:39: /usr/include/silicon/rmq_route.hh:171:7: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const R2&) auto route_cat(rmq::route<R1...> const & r1, ^~~~~~~~~ /usr/include/silicon/rmq_route.hh:171:7: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:136:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::mult_exp<L, R>&) auto route_cat(ws_route<S, P> r, const iod::mult_exp<L, R>& e) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:136:8: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const iod::mult_exp<L, R>’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:130:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::div_exp<L, R>&) auto route_cat(ws_route<S, P> r, const iod::div_exp<L, R>& e) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:130:8: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const iod::div_exp<L, R>’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:124:8: note: candidate: template<class S, class P, class T> auto sl::route_cat(sl::ws_route<S, P>, const sl::params_t&) auto route_cat(ws_route<S, P> r, const params_t& s) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:124:8: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const sl::params_t’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh:118:8: note: candidate: template<class S, class P, class SS> auto sl::route_cat(sl::ws_route<S, P>, const iod::symbol&) auto route_cat(ws_route<S, P> r, const iod::symbol& s) ^~~~~~~~~ /usr/include/silicon/backends/ws_api.hh:118:8: note: template argument deduction/substitution failed: In file included from ../main.cpp:39:0: /usr/include/silicon/api.hh:216:29: note: ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const iod::symbol’ auto r = route_cat(route, m.left); ~~~~~~~~~^~~~~~~~~~~~~~~ ../main.cpp:110:5: error: ‘void server_api’ has incomplete type ); ^ In file included from /usr/include/iod/grammar.hh:6:0, from /usr/include/iod/sio.hh:9, from /usr/include/silicon/api.hh:4, from ../main.cpp:39: /usr/include/iod/foreach.hh: At global scope: /usr/include/iod/foreach.hh:27:5: error: ‘void iod::internal::tuple_foreach_impl(std::enable_if_t<std::is_same<void, Ret>::value>, std::index_sequence<TSize ...>, F, T&& ...) [with Ret = void; F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; long unsigned int ...TSize = {0ul}; long unsigned int ...Nargs = {}; T = {std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&}; std::enable_if_t<std::is_same<void, Ret>::value> = void; std::index_sequence<TSize ...> = std::integer_sequence<long unsigned int, 0ul>]’, declared using local type ‘sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>’, is used but never defined [-fpermissive] tuple_foreach_impl(std::enable_if_t<std::is_same<void, Ret>::value>, ^~~~~~~~~~~~~~~~~~ /usr/include/iod/foreach.hh:27:5: warning: ‘void iod::internal::tuple_foreach_impl(std::enable_if_t<std::is_same<void, Ret>::value>*, std::index_sequence<TSize ...>, F, T&& ...) [with Ret = void; F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; long unsigned int ...TSize = {0ul}; long unsigned int ...Nargs = {}; T = {std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&}]’ used but never defined make: *** [main.o] Error 1 subdir.mk:18: recipe for target 'main.o' failed

09:55:28 Build Finished (took 6s.682ms)

I did fix the bug that a set was not regonized by adding the required include.

A lots of errors like: /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/libgnutls.a(sha-x86-ssse3.o):(.data.rel.ro+0x18): undefined reference to `nettle_sha256_init'

I have nettle_dev and libnettle4 installed. What else are missing?

Hi,

I wanted to know if it's possible to add a custom HTTP header for response-header -- I mean, to the server (I'm using Ajax to get data from C++ API).

My only solution here, is to make Silicon running behind a reverse proxy (nginx, where I can put the custom header).

Thank you.

POST / _product_in_stock * post_parameters(_product_id = int(),
                                          _price = double()) = [] (auto p) {
   cout << "price = " << p.price << endl;
}

Next implementing request: URL = http://192.168.1.10/product_in_stock Headers = Content-Type:application/json Method = POST Body:

{
	"product_id":1,
	"price":1.5
}

Exception is thrown:

libc++abi.dylib: terminating with uncaught exception of type boost::exception_detail::clone_impl<boost::exception_detail::error_info_injectorboost::bad_lexical_cast >: bad lexical cast: source type value could not be interpreted as target

`#include

include <silicon/api.hh>

include <silicon/api_description.hh>

include "symbols.hh"

using namespace sl; // Silicon namespace using namespace s; // Symbols namespace

int main() { typedef decltype(D(_name = std::string(), _age = int(), _city = std::string())) User;

User u("John", 23, "NYC");
std::vector<User> ul;
ul.push_back(u);
std::cout << "-----type_string(User)-----" <<std::endl;
std::cout << type_string( &u ) <<std::endl;
std::cout << "-----type_string(std::vector<user>)-----" <<std::endl;
std::cout << type_string( &ul ) <<std::endl;

return 0;

}`

out put :

-----type_string(User)-----
{name: string, age: int, city: string}
-----type_string(std::vector<user>)-----
vector of void

Is there some way to make "type_string(std::vector*)" to output "vector of {name: string, age: int, city: string}"

I tried to compile Silicon on Fedora 23 and I got this return:

[[email protected] silicon]$ ./install.sh ~/local/silicon
-- Configuring done
-- Generating done
-- Build files have been written to: /home/leandro/local/src/silicon/silicon_build
Install the project...
-- Install configuration: ""
-- Up-to-date: /home/leandro/local/silicon/include/silicon
-- Up-to-date: /home/leandro/local/silicon/include/silicon/procedure_desc.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/sql_crud.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/hash.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middleware_factories.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/http_route.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/service.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/utils.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/optional.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/dynamic_routing_table.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/get_parameters.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/mysql_connection.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/sql_orm.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/sqlite_orm.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/hashmap_session.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/mysql_orm.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/mysql_types.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/sqlite_connection.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/tracking_cookie.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/sqlite_types.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/mysql_session.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/sql_session.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares/sqlite_session.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients/libcurl_client.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients/javascript_client.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients/templates
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients/templates/javascript_websocket.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients/templates/javascript.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/null.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/wspp_connection.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/mimosa.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/websocketpp.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/mhd.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/h2o.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/ws_api.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/websocketpp_remote_client.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/ws_route.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/cppnet.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends/lwan.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/response.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/api_to_sio.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/di_factories.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/api_description.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/remote_api.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/error.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/file.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/api.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/blob.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/base_64.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/sql_rest.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon/symbols.hh
-- Up-to-date: /home/leandro/local/silicon/include/silicon
-- Up-to-date: /home/leandro/local/silicon/include/silicon/middlewares
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients
-- Up-to-date: /home/leandro/local/silicon/include/silicon/clients/templates
-- Up-to-date: /home/leandro/local/silicon/include/silicon/backends
mkdir: cannot create directory ‘externals’: File exists
fatal: destination path 'iod' already exists and is not an empty directory.
-- Boost version: 1.58.0
-- Configuring done
-- Generating done
-- Build files have been written to: /home/leandro/local/src/silicon/silicon_build/externals/iod/silicon_build
[ 13%] Building CXX object tests/CMakeFiles/bind_method.dir/bind_method.cc.o
[ 13%] Built target iod_generate_symbols
[ 22%] Built target apply
[ 31%] Built target callable_traits
[ 50%] Built target deep_merge
[ 50%] Built target core
[ 59%] Built target di
[ 77%] Built target foreach
[ 77%] Built target readme
[ 86%] Built target json
[ 95%] Built target tuple
clang: error: unable to execute command: Segmentation fault (core dumped)
clang: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 3.7.0 (tags/RELEASE_370/final)
Target: x86_64-redhat-linux-gnu
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script.
clang: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/bind_method-17bdc5.cpp
clang: note: diagnostic msg: /tmp/bind_method-17bdc5.sh
clang: note: diagnostic msg: 

********************
tests/CMakeFiles/bind_method.dir/build.make:62: recipe for target 'tests/CMakeFiles/bind_method.dir/bind_method.cc.o' failed
make[2]: *** [tests/CMakeFiles/bind_method.dir/bind_method.cc.o] Error 254
CMakeFiles/Makefile2:195: recipe for target 'tests/CMakeFiles/bind_method.dir/all' failed
make[1]: *** [tests/CMakeFiles/bind_method.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
Cannot install /home/leandro/local/silicon.

I am running: Fedora 23 clang 3.7.0 libboost 1.58 libmicrohttpd 0.9.39

Hi Matthieu,

First thank you VERY much for this library, it is pretty exciting, and I'm hoping to use it a lot. To get it to work, I had to comment out (!) the call to MHD_http_unescape in mhd.hh (which effectively breaks unescaping of course). My 'homebrew' ships version 0.9.38 which does not appear to come with a user-visible unescape function.

I'm trying to figure out what the best thing to do is here, but maybe you have some ideas already.

Again, thanks for Silicon!

c("select id from users")() | [] (int &uid) { std::cout << uid << std::endl; }; fails with

usr/include/silicon/middlewares/sqlite_connection.hh:115:9: error: no matching member function for call to 'row_to_sio'
        row_to_sio(o);
        ^~~~~~~~~~
test.cc:36:39: note: in instantiation of function template specialization 'sl::sqlite_statement::operator|<(lambda at test.cc:36:41)>' requested here
  c("select id from users")() | [] (int &uid)
                                      ^
/usr/include/silicon/middlewares/sqlite_connection.hh:37:10: note: candidate template ignored: could not match 'sio<type-parameter-0-0...>' against 'int'
    void row_to_sio(iod::sio<A...>& o)

seems like only sio objects work with |?

I'm on a pet project that requires a performant CoAP webserver. Since none exist I was considering using libcoap and find a frontend for doing the routing/middleware. Silicon looks to fit the build! How hard would it be to add libcoap as a Silicon backend? Are there any docs or guidance?

Thanks!

when i trying to run the websocket.o with this command: ./ws 8000 i get this error message:

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create
[1]    3759 abort (core dumped)  ./ws 8000

and some times this error:

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
[1]    3972 abort (core dumped)  ./ws 8000

i think the problem is this part of code :

  auto rclient = make_wspp_remote_client( _message * parameters(_text) );

  // The server websocket api accessible by the client.
  auto server_api = ws_api(

    // Broadcast a message to all clients.
    _broadcast * parameters(_message) = [&] (auto p) {
      for (const wspp_connection& c : users) rclient(c).message(p.message);
    }

    );

Hello. Thanks for taking the time to write this and make it public. I came in via #42 but can see you use a unit testing framework.

I've been trying to generate coverage, both by forking your repo and running your travis.yml there are errors. I wasn't sure if you knew about them, including but not limited to commands for executable files that are not installed, passing a token that can just be set via travis settings.

I'm currently trying to fix these problems, but it seems C++ coverage is harder to generate than the same in Java, C# or scripting language.

Hello, Do you know about Conan? Conan is modern dependency manager for C++. And will be great if your library will be available via package manager for other developers.

Here you can find example, how you can create package for the library.

If you have any questions, just ask :-)