service

Documentation

Index

• type ExternalServiceList
  • func NewServiceList(initialiser Initialiser) *ExternalServiceList
  • func (e *ExternalServiceList) GetHTTPServer(bindAddr string, router http.Handler) HTTPServer
  • func (e *ExternalServiceList) GetHealthCheck(cfg *config.Config, buildTime, gitCommit, version string) (HealthChecker, error)
  • func (e *ExternalServiceList) GetHealthClient(name, url string) *health.Client
  • func (e *ExternalServiceList) GetKafkaProducer(ctx context.Context, cfg *config.Config, producerType KafkaProducerType) (kafkaProducer kafka.IProducer, err error)
  • func (e *ExternalServiceList) GetMongoDB(ctx context.Context, cfg config.MongoConfig) (api.MongoServer, error)
• type HTTPServer
• type HealthChecker
• type Init
  • func (e *Init) DoGetHTTPServer(bindAddr string, router http.Handler) HTTPServer
  • func (e *Init) DoGetHealthCheck(cfg *config.Config, buildTime, gitCommit, version string) (HealthChecker, error)
  • func (e *Init) DoGetHealthClient(name, url string) *health.Client
  • func (e *Init) DoGetKafkaProducer(ctx context.Context, cfg *config.Config, topic string) (kafka.IProducer, error)
  • func (e *Init) DoGetMongoDB(ctx context.Context, cfg config.MongoConfig) (api.MongoServer, error)
• type Initialiser
• type KafkaProducerType
• type Service
  • func Run(ctx context.Context, cfg *config.Config, serviceList *ExternalServiceList, ...) (*Service, error)
  • func (svc *Service) Close(ctx context.Context) error

Types

type ExternalServiceList

type ExternalServiceList struct {
	MongoDB                bool
	HealthCheck            bool
	KafkaProducerUploaded  bool
	KafkaProducerPublished bool
	Init                   Initialiser
}

ExternalServiceList holds the initialiser and initialisation state of external services.

func NewServiceList

func NewServiceList(initialiser Initialiser) *ExternalServiceList

NewServiceList creates a new service list with the provided initialiser

func (*ExternalServiceList) GetHTTPServer

func (e *ExternalServiceList) GetHTTPServer(bindAddr string, router http.Handler) HTTPServer

GetHTTPServer creates an http server and sets the Server flag to true

func (*ExternalServiceList) GetHealthCheck

func (e *ExternalServiceList) GetHealthCheck(cfg *config.Config, buildTime, gitCommit, version string) (HealthChecker, error)

GetHealthCheck creates a healthcheck with versionInfo and sets teh HealthCheck flag to true

func (*ExternalServiceList) GetHealthClient

func (e *ExternalServiceList) GetHealthClient(name, url string) *health.Client

GetHealthClient returns a healthclient for the provided URL

func (*ExternalServiceList) GetKafkaProducer

func (e *ExternalServiceList) GetKafkaProducer(ctx context.Context, cfg *config.Config, producerType KafkaProducerType) (kafkaProducer kafka.IProducer, err error)

GetKafkaProducer returns a kafka producer

func (*ExternalServiceList) GetMongoDB

func (e *ExternalServiceList) GetMongoDB(ctx context.Context, cfg config.MongoConfig) (api.MongoServer, error)

GetMongoDB creates a mongoDB client and sets the Mongo flag to true

type HTTPServer

type HTTPServer interface {
	ListenAndServe() error
	Shutdown(ctx context.Context) error
}

HTTPServer defines the required methods from the HTTP server

type HealthChecker

type HealthChecker interface {
	Handler(w http.ResponseWriter, req *http.Request)
	Start(ctx context.Context)
	Stop()
	AddCheck(name string, checker healthcheck.Checker) (err error)
}

HealthChecker defines the required methods from Healthcheck

type Init

type Init struct{}

Init implements the Initialiser interface to initialise dependencies

func (*Init) DoGetHTTPServer

func (e *Init) DoGetHTTPServer(bindAddr string, router http.Handler) HTTPServer

DoGetHTTPServer creates an HTTP Server with the provided bind address and router

func (*Init) DoGetHealthCheck

func (e *Init) DoGetHealthCheck(cfg *config.Config, buildTime, gitCommit, version string) (HealthChecker, error)

DoGetHealthCheck creates a healthcheck with versionInfo

func (*Init) DoGetHealthClient

func (e *Init) DoGetHealthClient(name, url string) *health.Client

DoGetHealthClient creates a new Health Client for the provided name and url

func (*Init) DoGetKafkaProducer

func (e *Init) DoGetKafkaProducer(ctx context.Context, cfg *config.Config, topic string) (kafka.IProducer, error)

DoGetKafkaProducer creates a kafka producer for the provided broker addresses, topic and envMax values in config

func (*Init) DoGetMongoDB

func (e *Init) DoGetMongoDB(ctx context.Context, cfg config.MongoConfig) (api.MongoServer, error)

DoGetMongoDB returns a MongoDB

type Initialiser

type Initialiser interface {
	DoGetHTTPServer(bindAddr string, router http.Handler) HTTPServer
	DoGetMongoDB(ctx context.Context, cfg config.MongoConfig) (api.MongoServer, error)
	DoGetKafkaProducer(ctx context.Context, cfg *config.Config, topic string) (kafka.IProducer, error)
	DoGetHealthClient(name, url string) *health.Client
	DoGetHealthCheck(cfg *config.Config, buildTime, gitCommit, version string) (HealthChecker, error)
}

Initialiser defines the methods to initialise external services

type KafkaProducerType

type KafkaProducerType int

KafkaProducerType to differentiate the kafka producers

const (
	KafkaProducerUploaded KafkaProducerType = iota
	KafkaProducerPublished
)

All possible Kafka producers

type Service

type Service struct {
	// contains filtered or unexported fields
}

Service contains all the configs, server and clients to run the Image API

func Run

func Run(ctx context.Context, cfg *config.Config, serviceList *ExternalServiceList, buildTime, gitCommit, version string, svcErrors chan error) (*Service, error)

Run the service

func (*Service) Close

func (svc *Service) Close(ctx context.Context) error

Close gracefully shuts the service down in the required order, with timeout