config.hpp

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#pragma once
 
/// @file userver/clients/http/config.hpp
/// @brief HTTP client static and dynamic configuration types
 
#include <chrono>
#include <optional>
#include <string>
 
#include <userver/clients/http/cancellation_policy.hpp>
#include <userver/dynamic_config/fwd.hpp>
#include <userver/formats/json_fwd.hpp>
#include <userver/yaml_config/fwd.hpp>
 
namespace dynamic_config::http_client_connect_throttle {
struct VariableTypeRaw;
using VariableType = VariableTypeRaw;
}  // namespace dynamic_config::http_client_connect_throttle
 
USERVER_NAMESPACE_BEGIN
 
namespace tracing {
class TracingManagerBase;
}  // namespace tracing
 
namespace clients::http {
 
struct DeadlinePropagationConfig {
    bool update_header{true};
};
 
// Static config
struct ClientSettings final {
    std::string thread_name_prefix{};
    size_t io_threads{8};
    DeadlinePropagationConfig deadline_propagation{};
    const tracing::TracingManagerBase* tracing_manager{nullptr};
    CancellationPolicy cancellation_policy{CancellationPolicy::kCancel};
};
 
ClientSettings Parse(const yaml_config::YamlConfig& value, formats::parse::To<ClientSettings>);
 
}  // namespace clients::http
 
namespace clients::http::impl {
 
struct ThrottleConfig final {
    static constexpr size_t kNoLimit = -1;
 
    std::size_t http_connect_limit{kNoLimit};
    std::chrono::microseconds http_connect_rate{0};
    std::size_t https_connect_limit{kNoLimit};
    std::chrono::microseconds https_connect_rate{0};
    std::size_t per_host_connect_limit{kNoLimit};
    std::chrono::microseconds per_host_connect_rate{0};
};
 
ThrottleConfig Parse(const ::dynamic_config::http_client_connect_throttle::VariableType&);
 
// Dynamic config
struct Config final {
    static constexpr std::size_t kDefaultConnectionPoolSize = 10000;
 
    std::size_t connection_pool_size{kDefaultConnectionPoolSize};
    ThrottleConfig throttle;
};
 
}  // namespace clients::http::impl
 
USERVER_NAMESPACE_END