components::DynamicConfigClient Class Reference

#include <userver/dynamic_config/client/component.hpp>

Detailed Description

Component that starts a clients::dynamic_config::Client client.

Returned references to clients::dynamic_config::Client live for a lifetime of the component and are safe for concurrent use.

The component must be configured in service config.

Static options:

Name	Description	Default value
get-configs-overrides-for-service	send service-name field	true
service-name	name of the service to send if the get-configs-overrides-for-service is true	-
http-timeout	HTTP request timeout to the remote in utils::StringToDuration() suitable format	-
http-retries	HTTP retries before reporting the request failure	-
config-url	HTTP URL to request configs via POST request	-
append-path-to-url	add default path '/configs/values' to 'config-url'	true

configs-stage: stage name provided statically, can be overridden from file | - configs-stage-filepath: file to read stage name from, overrides static "configs-stage" if both are provided, expected format: json file with "env_name" property | - fallback-to-no-proxy | make additional attempts to retrieve configs by bypassing proxy that is set in USERVER_HTTP_PROXY runtime variable | true

Static configuration example:

# yaml
    dynamic-config-client:
      get-configs-overrides-for-service: true
      service-name: common_component_list-service
      http-timeout: 20s
      http-retries: 5
      config-url: http://localhost:8083/
      configs-stage: $configs_stage
      fallback-to-no-proxy: false

Examples

postgresql/functional_tests/basic_chaos/postgres_service.cpp.

Definition at line 42 of file component.hpp.

Inheritance diagram for components::DynamicConfigClient:

Public Member Functions
	DynamicConfigClient (const ComponentConfig &, const ComponentContext &)
dynamic_config::Client &	GetClient () const
ComponentHealth	GetComponentHealth () const override
void	OnLoadingCancelled () override
void	OnAllComponentsLoaded () override
void	OnAllComponentsAreStopping () override

Static Public Member Functions
static yaml_config::Schema	GetStaticConfigSchema ()

Static Public Attributes
static constexpr std::string_view	kName = "dynamic-config-client"
	The default name of components::DynamicConfigClient.

Protected Types
using	LoggableComponentBase = ComponentBase
	Legacy alias, use ComponentBase instead.

Member Typedef Documentation

LoggableComponentBase

using components::ComponentBase::LoggableComponentBase = ComponentBase

protectedinherited

Legacy alias, use ComponentBase instead.

Definition at line 67 of file component_base.hpp.

Member Function Documentation

GetComponentHealth()

ComponentHealth components::ComponentBase::GetComponentHealth ( ) const

inlineoverridevirtualinherited

Override this function to inform the world of the state of your component.

Warning

The function is called concurrently from multiple threads.

Reimplemented from components::RawComponentBase.

Reimplemented in server::handlers::Restart.

Definition at line 35 of file component_base.hpp.

OnAllComponentsAreStopping()

void components::ComponentBase::OnAllComponentsAreStopping ( )

inlineoverridevirtualinherited

Component may use this function to stop doing work before the stop of the components that depend on it.

Base components may override it and make final to do some work before the derived object constructor is called. Don't use it otherwise.

Reimplemented from components::RawComponentBase.

Reimplemented in urabbitmq::ConsumerComponentBase, and components::Server.

Definition at line 58 of file component_base.hpp.

OnAllComponentsLoaded()

void components::ComponentBase::OnAllComponentsLoaded ( )

inlineoverridevirtualinherited

Component may use this function to finalize registration of other components that depend on it (for example, handler components register in server component, and the latter uses OnAllComponentsLoaded() to start processing requests).

Base components may override it and make final to do some work after the derived object constructor is called. Don't use it otherwise.

Reimplemented from components::RawComponentBase.

Reimplemented in urabbitmq::ConsumerComponentBase, components::Server, and server::handlers::Ping.

Definition at line 51 of file component_base.hpp.

OnLoadingCancelled()

void components::ComponentBase::OnLoadingCancelled ( )

inlineoverridevirtualinherited

Called once if the creation of any other component failed. If the current component expects some other component to take any action with the current component, this call is a signal that such action may never happen due to components loading was cancelled. Application components might not want to override it.

Reimplemented from components::RawComponentBase.

Definition at line 42 of file component_base.hpp.

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The documentation for this class was generated from the following file:

• userver/dynamic_config/client/component.hpp