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| 1 | +#pragma once |
| 2 | + |
| 3 | +#ifndef SPACETIMEDB_UNSTABLE_FEATURES |
| 4 | +#error "spacetimedb/http_handler_macros.h requires SPACETIMEDB_UNSTABLE_FEATURES to be enabled" |
| 5 | +#endif |
| 6 | + |
| 7 | +#include "spacetimedb/handler_context.h" |
| 8 | +#include "spacetimedb/http.h" |
| 9 | +#include "spacetimedb/internal/runtime_registration.h" |
| 10 | +#include "spacetimedb/internal/template_utils.h" |
| 11 | +#include "spacetimedb/internal/v10_builder.h" |
| 12 | +#include "spacetimedb/macros.h" |
| 13 | +#include "spacetimedb/router.h" |
| 14 | + |
| 15 | +namespace SpacetimeDB::Internal { |
| 16 | + |
| 17 | +template<typename Func> |
| 18 | +inline void RegisterHttpHandlerMacro(const char* handler_name, Func func) { |
| 19 | + using traits = function_traits<Func>; |
| 20 | + static_assert(traits::arity == 2, "HTTP handlers must take exactly two arguments"); |
| 21 | + using ContextType = typename traits::template arg_t<0>; |
| 22 | + using RequestType = typename traits::template arg_t<1>; |
| 23 | + using ReturnType = typename traits::result_type; |
| 24 | + static_assert(std::is_same_v<ContextType, HandlerContext>, "First parameter of HTTP handler must be HandlerContext"); |
| 25 | + static_assert(std::is_same_v<RequestType, HttpRequest>, "Second parameter of HTTP handler must be HttpRequest"); |
| 26 | + static_assert(std::is_same_v<ReturnType, HttpResponse>, "HTTP handlers must return HttpResponse"); |
| 27 | + |
| 28 | + std::function<HttpResponse(HandlerContext&, HttpRequest)> handler = |
| 29 | + [func](HandlerContext& ctx, HttpRequest request) -> HttpResponse { |
| 30 | + return func(ctx, std::move(request)); |
| 31 | + }; |
| 32 | + RegisterHttpHandlerHandler(handler_name, func, std::move(handler)); |
| 33 | + getV10Builder().RegisterHttpHandlerDef(handler_name); |
| 34 | +} |
| 35 | + |
| 36 | +} // namespace SpacetimeDB::Internal |
| 37 | + |
| 38 | +#define SPACETIMEDB_HTTP_HANDLER(handler_name, ctx_param, request_param) \ |
| 39 | + SpacetimeDB::HttpResponse handler_name(ctx_param, request_param); \ |
| 40 | + __attribute__((export_name("__preinit__60_http_handler_" #handler_name))) \ |
| 41 | + extern "C" void CONCAT(_spacetimedb_preinit_register_http_handler_, handler_name)() { \ |
| 42 | + ::SpacetimeDB::Internal::RegisterHttpHandlerMacro(#handler_name, handler_name); \ |
| 43 | + } \ |
| 44 | + SpacetimeDB::HttpResponse handler_name(ctx_param, request_param) |
| 45 | + |
| 46 | +#define SPACETIMEDB_HTTP_HANDLER_NAMED(handler_name, canonical_name, ctx_param, request_param) \ |
| 47 | + SpacetimeDB::HttpResponse handler_name(ctx_param, request_param); \ |
| 48 | + __attribute__((export_name("__preinit__60_http_handler_" #handler_name))) \ |
| 49 | + extern "C" void CONCAT(_spacetimedb_preinit_register_http_handler_, handler_name)() { \ |
| 50 | + ::SpacetimeDB::Internal::RegisterHttpHandlerMacro(#handler_name, handler_name); \ |
| 51 | + SpacetimeDB::Module::RegisterExplicitFunctionName(#handler_name, canonical_name); \ |
| 52 | + } \ |
| 53 | + SpacetimeDB::HttpResponse handler_name(ctx_param, request_param) |
| 54 | + |
| 55 | +#define SPACETIMEDB_HTTP_ROUTER(router_name) \ |
| 56 | + SpacetimeDB::Router router_name(); \ |
| 57 | + __attribute__((export_name("__preinit__61_http_router_" #router_name))) \ |
| 58 | + extern "C" void CONCAT(_spacetimedb_preinit_register_http_router_, router_name)() { \ |
| 59 | + ::SpacetimeDB::Internal::getV10Builder().RegisterHttpRouter(router_name()); \ |
| 60 | + } \ |
| 61 | + SpacetimeDB::Router router_name() |
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