Documentation
¶
Index ¶
- Variables
- func BuildDownstreamGRPCClient(ctx context.Context, serviceName string, hooks *Hooks, ...) (*grpc.ClientConn, error)
- func BuildDownstreamHTTPClient(ctx context.Context, serviceName string, hooks *Hooks, ...) (client *http.Client, serviceURL string, err error)
- func DefaultGrpcServerOptions(ctx context.Context, grpcPublicServerConfig *config.GRPCServerConfig) ([]grpc.ServerOption, error)
- func GetAppConfigType(createService interface{}) reflect.Type
- func LoadCustomConfig(ctx context.Context, customConfig interface{}) (interface{}, error)
- func MustTypeCheckCreateService(createService, serviceInterface interface{})
- func NewZeroCustomConfig(downstreamConfigType, appConfigType reflect.Type) interface{}
- func Recoverer(next http.Handler) http.Handler
- func ResolveGRPCAuthorizationRule(ctx context.Context, h *Hooks, endpointName string, authRuleExpression string) (authrules.Rule, error)
- func ResolveGrpcDialOptions(ctx context.Context, serviceName string, h *Hooks, ...) ([]grpc.DialOption, error)
- func ResolveGrpcServerOptions(ctx context.Context, h *Hooks, grpcPublicServerConfig *config.GRPCServerConfig) ([]grpc.ServerOption, error)
- func ResolveRESTAuthorizationRule(ctx context.Context, h *Hooks, endpointName string, authRuleExpression string) (authrules.Rule, error)
- func SelectBasePath(fromSpec, dynamic string) string
- func Serve(ctx context.Context, ...) error
- func TraceidLogInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, ...) (interface{}, error)
- func WithConfigFile(ctx context.Context, yamlConfigData []byte) context.Context
- type ErrDisplayHelp
- type GrpcGenCallback
- type GrpcManagerdeprecated
- type GrpcServerManager
- type HTTPManagerShim
- func (m *HTTPManagerShim) AddAdminHTTPMiddleware() func(ctx context.Context, r chi.Router)
- func (m *HTTPManagerShim) AdminServerConfig() *config.CommonHTTPServerConfig
- func (m *HTTPManagerShim) EnabledHandlers() []handlerinitialiser.HandlerInitialiser
- func (m *HTTPManagerShim) LibraryConfig() *config.LibraryConfig
- func (m *HTTPManagerShim) PublicServerConfig() *config.UpstreamConfig
- type Hooks
- type Manager
- type MultiError
- type RestGenCallback
- type StoppableServer
- type TLSLogFilter
Constants ¶
This section is empty.
Variables ¶
var ( // Name is set at the build time. Name = "" // Version is set at the build time. Version = "" // BuildID is set at the build time. BuildID = "" // CommitSha is set at the build time. CommitSha = "" // BranchName is set at the build time. BranchName = "" // TagName is set at the build time. TagName = "" )
Functions ¶
func BuildDownstreamGRPCClient ¶ added in v0.56.0
func BuildDownstreamGRPCClient(ctx context.Context, serviceName string, hooks *Hooks, cfg *config.CommonGRPCDownstreamData) (*grpc.ClientConn, error)
BuildDownstreamGRPCClient creates a grpc client connection to the target indicated by cfg.ServiceAddress. The dial options can be customised by cfg or by hooks, see ResolveGrpcDialOptions for details. The serviceName is the name of the target service. This function is intended to be called from generated code.
func DefaultGrpcServerOptions ¶ added in v0.97.0
func DefaultGrpcServerOptions(ctx context.Context, grpcPublicServerConfig *config.GRPCServerConfig) ([]grpc.ServerOption, error)
func GetAppConfigType ¶ added in v0.87.0
GetAppConfigType extracts the app's config type from createService. Precondition: MustTypeCheckCreateService(createService, serviceInterface) succeeded.
func LoadCustomConfig ¶ added in v0.87.0
LoadCustomConfig populates the given zero customConfig value with configuration data.
func MustTypeCheckCreateService ¶ added in v0.87.0
func MustTypeCheckCreateService(createService, serviceInterface interface{})
MustTypeCheckCreateService checks that the given createService has an acceptable type, and panics otherwise.
func NewZeroCustomConfig ¶ added in v0.87.0
NewZeroCustomConfig uses reflection to create a new type derived from DefaultConfig, but with new GenCode.Downstream and App fields holding the same types as downstreamConfig and appConfig. It returns a pointer to a zero value of that new type.
func ResolveGRPCAuthorizationRule ¶ added in v0.108.0
func ResolveGrpcDialOptions ¶ added in v0.98.0
func ResolveGrpcDialOptions(ctx context.Context, serviceName string, h *Hooks, grpcDownstreamConfig *config.CommonGRPCDownstreamData) ([]grpc.DialOption, error)
func ResolveGrpcServerOptions ¶ added in v0.97.0
func ResolveGrpcServerOptions(ctx context.Context, h *Hooks, grpcPublicServerConfig *config.GRPCServerConfig) ([]grpc.ServerOption, error)
func ResolveRESTAuthorizationRule ¶ added in v0.109.0
func SelectBasePath ¶
SelectBasePath chooses between a specified base path and a dynmaically chosen one.
func Serve ¶ added in v0.84.0
func Serve( ctx context.Context, downstreamConfig, createService, serviceInterface interface{}, newManagers func(ctx context.Context, serviceIntf interface{}, hooks *Hooks) (Manager, *GrpcServerManager, error), ) error
Serve is deprecated and will be removed once downstream applications cease depending upon it. Generated code will no longer call this function. This is a shim for compatibility with code generated by sysl-go versions v0.122.0 & earlier.
func TraceidLogInterceptor ¶ added in v0.97.0
func TraceidLogInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error)
func WithConfigFile ¶ added in v0.146.0
WithConfigFile adds configuration data into the context. This will be used as the source of application configuration data, instead of the default behaviour of reading configuration from the config file path specified by command line arguments. Data must be in YAML format.
Types ¶
type ErrDisplayHelp ¶ added in v0.154.0
type ErrDisplayHelp int
func (ErrDisplayHelp) Error ¶ added in v0.154.0
func (e ErrDisplayHelp) Error() string
type GrpcGenCallback ¶ added in v0.4.0
type GrpcGenCallback interface {
DownstreamTimeoutContext(ctx context.Context) (context.Context, context.CancelFunc)
}
GrpcGenCallback is currently a subset of RestGenCallback so is defined separately for convenience.
type GrpcManager
deprecated
type GrpcManager interface { Interceptors() []grpc.UnaryServerInterceptor EnabledGrpcHandlers() []handlerinitialiser.GrpcHandlerInitialiser GrpcAdminServerConfig() *config.CommonServerConfig GrpcPublicServerConfig() *config.GRPCServerConfig }
Deprecated: prefer GrpcServerManager.
type GrpcServerManager ¶ added in v0.97.0
type GrpcServerManager struct { GrpcServerOptions []grpc.ServerOption EnabledGrpcHandlers []handlerinitialiser.GrpcHandlerInitialiser GrpcPublicServerConfig *config.GRPCServerConfig }
type HTTPManagerShim ¶ added in v0.91.0
type HTTPManagerShim struct {
// contains filtered or unexported fields
}
func NewHTTPManagerShim ¶ added in v0.91.0
func NewHTTPManagerShim(libraryConfig *config.LibraryConfig, adminServerConfig *config.CommonHTTPServerConfig, publicServerConfig *config.UpstreamConfig, enabledHandlers []handlerinitialiser.HandlerInitialiser, addAdminHTTPMiddleware func(ctx context.Context, r chi.Router)) *HTTPManagerShim
func (*HTTPManagerShim) AddAdminHTTPMiddleware ¶ added in v0.169.0
func (m *HTTPManagerShim) AddAdminHTTPMiddleware() func(ctx context.Context, r chi.Router)
func (*HTTPManagerShim) AdminServerConfig ¶ added in v0.91.0
func (m *HTTPManagerShim) AdminServerConfig() *config.CommonHTTPServerConfig
func (*HTTPManagerShim) EnabledHandlers ¶ added in v0.91.0
func (m *HTTPManagerShim) EnabledHandlers() []handlerinitialiser.HandlerInitialiser
func (*HTTPManagerShim) LibraryConfig ¶ added in v0.91.0
func (m *HTTPManagerShim) LibraryConfig() *config.LibraryConfig
func (*HTTPManagerShim) PublicServerConfig ¶ added in v0.91.0
func (m *HTTPManagerShim) PublicServerConfig() *config.UpstreamConfig
type Hooks ¶ added in v0.97.0
type Hooks struct { // Logger returns the common.Logger instance to set use within Sysl-go. // By default, if this Logger hook is not set then an instance of the pkg logger is used. // This hook can also be used to define a custom logger. // For more information about logging see log/README.md within this project. // Note: The returned logger is guaranteed to have the log level from the external configuration // file (library: log: level) set against it. Logger func() log.Logger // MapError maps an error to an HTTPError in instances where custom error mapping is required. // Return nil to perform default error mapping; defined as: // 1. CustomError.HTTPError if the original error is a CustomError, otherwise // 2. common.MapError // By default, if this MapError hook is not customised, the default error mapping will be used. MapError func(ctx context.Context, err error) *common.HTTPError // AdditionalGrpcDialOptions can be used to append to the default grpc.DialOption configuration used by // an autogenerated service when it calls grpc.Dial when using a grpc.Client to connect to a gRPC server. // If given, AdditionalGrpcDialOptions will be appended to the list of default options created by // DefaultGrpcDialOptions(CommonGRPCDownstreamData). // // Use AdditionalGrpcDialOptions if you need both default and custom options. Be careful that you do // not specify any options that clash with the default options. // // If you need to completely override the default options, use OverrideGrpcDialOptions. // It is an error to set both AdditionalGrpcDialOptions and OverrideGrpcDialOptions. AdditionalGrpcDialOptions []grpc.DialOption // OverrideGrpcDialOptions can be used to override the default grpc.DialOption configuration used by an // an autogenerated service when it calls grpc.Dial when using a grpc.Client to connect to a gRPC server. // // The serviceName parameter will be filled with the name of the target service that we // are about to call grpc.Dial to connect to -- a function implementing this hook can use the // serviceName to customise different dial options for different targets. // // Prefer to use AdditionalGrpcDialOptions instead of OverrideGrpcDialOptions if you only need // to append to the default grpc.DialOption configuration instead of overriding it completely. // // It is an error to set both AdditionalGrpcDialOptions and OverrideGrpcDialOptions. OverrideGrpcDialOptions func(serviceName string, cfg *config.CommonGRPCDownstreamData) ([]grpc.DialOption, error) // AdditionalGrpcServerOptions can be used to append to the default grpc.ServerOption configuration used by // an autogenerated service when it creates a gRPC server. If given, AdditionalGrpcServerOptions will be // appended to the list of default options created by DefaultGrpcServerOptions(context.Context, CommonServerConfig). // // Use AdditionalGrpcServerOptions if you need both default and custom options. Be careful that you do // not specify any options that clash with the default options. // // If you need to completely override the default options, use OverrideGrpcServerOptions. // It is an error to set both AdditionalGrpcServerOptions and OverrideGrpcServerOptions. AdditionalGrpcServerOptions []grpc.ServerOption // OverrideGrpcServerOptions can be used to override the default grpc.ServerOption configuration used by an // autogenerated service when it creates a gRPC server. // // Prefer to use AdditionalGrpcServerOptions instead of OverrideGrpcServerOptions if you only need // to append to the default grpc.ServerOption configuration instead of overriding it completely. // // It is an error to set both AdditionalGrpcServerOptions and OverrideGrpcServerOptions. OverrideGrpcServerOptions func(ctx context.Context, grpcPublicServerConfig *config.GRPCServerConfig) ([]grpc.ServerOption, error) // OverrideMakeJWTClaimsBasedAuthorizationRule can be used to customise how authorization rule // expressions are evaluated and used to decide if JWT claims are authorised. By default, if this // hook is nil, then authrules.MakeDefaultJWTClaimsBasedAuthorizationRule is used. OverrideMakeJWTClaimsBasedAuthorizationRule func(authorizationRuleExpression string) (authrules.JWTClaimsBasedAuthorizationRule, error) // AddHTTPMiddleware can be used to install additional HTTP middleware into the chi.Router // used to serve all (non-admin) HTTP endpoints. By default, sysl-go installs a number of // HTTP middleware -- refer to prepareMiddleware inside sysl-go/core. This hook can only // be used to add middleware, not override any of the default middleware. AddHTTPMiddleware func(ctx context.Context, r chi.Router) // AddAdminHTTPMiddleware can be used to install additional HTTP middleware into the chi.Router // used to serve the admin HTTP endpoints. See AddHTTPMiddleware for further details. AddAdminHTTPMiddleware func(ctx context.Context, r chi.Router) // DownstreamRoundTripper can be used to install additional HTTP RoundTrippers to the downstream clients DownstreamRoundTripper func(serviceName string, serviceURL string, original http.RoundTripper) http.RoundTripper // ValidateConfig can be used to validate (or override) values in the config. ValidateConfig func(ctx context.Context, cfg *config.DefaultConfig) error // HTTPClientBuilder can be used to add a function which will be used to create the downstream HTTP clients // instead of the normal generator. This can be used to create custom test HTTP clients. HTTPClientBuilder func(serviceName string) (client *http.Client, serviceURL string, err error) // StoppableServerBuilder can be used to add a function which will be used to create the public listener // instead of the normal httpServer. This can be used to create custom test HTTP listeners. StoppableServerBuilder func(ctx context.Context, rootRouter http.Handler, tlsConfig *tls.Config, httpConfig config.CommonHTTPServerConfig, name string) StoppableServer }
Hooks can be used to customise the behaviour of an autogenerated sysl-go service.
type Manager ¶
type Manager interface { EnabledHandlers() []handlerinitialiser.HandlerInitialiser LibraryConfig() *config.LibraryConfig AdminServerConfig() *config.CommonHTTPServerConfig PublicServerConfig() *config.UpstreamConfig // AddAdminHTTPMiddleware can return nil if you do not have any additional middleware for the admin endpoint AddAdminHTTPMiddleware() func(ctx context.Context, r chi.Router) }
type MultiError ¶ added in v0.123.0
FIXME replace MultiError with some existing type that does this job better.
func (MultiError) Error ¶ added in v0.123.0
func (e MultiError) Error() string
type RestGenCallback ¶ added in v0.4.0
type RestGenCallback interface { // AddMiddleware allows hand-crafted code to add middleware to the router AddMiddleware(ctx context.Context, r chi.Router) // BasePath allows hand-crafted code to set the base path for the Router BasePath() string // Config returns a structure representing the server config // This is returned from the status endpoint Config() interface{} // MapError maps an error to an HTTPError in instances where custom error mapping is required. Return nil to perform default error mapping; defined as: // 1. CustomError.HTTPError if the original error is a CustomError, otherwise // 2. common.MapError MapError(ctx context.Context, err error) *common.HTTPError // DownstreamTimeoutContext add the desired timeout duration to the context for downstreams // A separate service timeout (usually greater than the downstream) should also be in // place to automatically respond to callers DownstreamTimeoutContext(ctx context.Context) (context.Context, context.CancelFunc) }
RestGenCallback is used by `sysl-go` to call hand-crafted code.
type StoppableServer ¶ added in v0.123.0
type StoppableServer interface { // Start() directs the server to attempt to start serving. This call will block // until a failure occurs, or the server is stopped. If the server is not stopped // and no failure occurs, this call may block indefinitely. // On a successful stop() or gracefulstop(), no error is returned. Start() error // Stop() directs the server to immediately and un-gracefully stop, which may // interrupt any in-flight requests/calls being processed. Stop() error // GracefulStop() directs the server to stop accepting new requests/calls and // wait for any in-flight requests/calls to complete. Implementations of // GracefulStop() should ensure they bring the server to a stop after some // bounded period of time, even if this involves ungracefully dropping some // laggard requests/calls. GracefulStop() error GetName() string }
StoppableServer offers control over the lifecycle of a server that can be started at most once and then stopped.
func NewMultiStoppableServer ¶ added in v0.202.0
func NewMultiStoppableServer(ctx context.Context, servers []StoppableServer) StoppableServer
func NewServer ¶ added in v0.123.0
func NewServer( ctx context.Context, downstreamConfig, createService, serviceInterface interface{}, newManagers func(ctx context.Context, serviceIntf interface{}, hooks *Hooks) (Manager, *GrpcServerManager, error), ) (StoppableServer, error)
NewServer returns an auto-generated service.
type TLSLogFilter ¶
type TLSLogFilter struct {
// contains filtered or unexported fields
}