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package
v3.32.1 Latest Latest
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 Go to latest Published: Oct 24, 2024 License: Apache-2.0 Imports: 13 Imported by: 0

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Index

Constants

View Source 
const DefaultBufferSize = 128

DefaultBufferSize is the default size of a subscription uplink buffer.

Variables

View Source 
var (

	// DialTaskBackoffConfig derives the component.DialTaskBackoffConfig and dynamically determines the backoff duration
	// based on recent error codes.
	DialTaskBackoffConfig = &task.BackoffConfig{
		Jitter: task.DefaultBackoffJitter,
		IntervalFunc: func(ctx context.Context, executionDuration time.Duration, invocation uint, err error) time.Duration {
			intervals := dialTaskBackoffIntervals
			switch {
			case errors.IsFailedPrecondition(err),
				errors.IsUnauthenticated(err),
				errors.IsPermissionDenied(err),
				errors.IsInvalidArgument(err),
				errors.IsAlreadyExists(err),
				errors.IsCanceled(err),
				errors.IsNotFound(err):
				intervals = dialTaskExtendedBackoffIntervals
			}
			switch {
			case executionDuration > task.DefaultBackoffResetDuration:
				return intervals[0]
			case invocation >= uint(len(intervals)):
				return intervals[len(intervals)-1]
			default:
				return intervals[invocation-1]
			}
		},
	}
)

Functions 

func CleanDownlinks(items []*ttnpb.ApplicationDownlink) []*ttnpb.ApplicationDownlink

CleanDownlinks returns a copy of the given downlink items with only the fields that can be set by the application.

Types

type Cluster added in v3.14.0 

type Cluster interface {
	// GetPeers returns peers with the given role.
	GetPeers(ctx context.Context, role ttnpb.ClusterRole) ([]cluster.Peer, error)
	// GetPeer returns a peer with the given role, and a responsibility for the
	// given identifiers. If the identifiers are nil, this function returns a random
	// peer from the list that would be returned by GetPeers.
	GetPeer(ctx context.Context, role ttnpb.ClusterRole, ids cluster.EntityIdentifiers) (cluster.Peer, error)
	// GetPeerConn returns the gRPC client connection of a peer, if the peer is available as
	// as per GetPeer.
	GetPeerConn(ctx context.Context, role ttnpb.ClusterRole, ids cluster.EntityIdentifiers) (*grpc.ClientConn, error)
}

Cluster represents the Application Server cluster peers to application frontends.

type ContextualApplicationUp 

type ContextualApplicationUp struct {
	context.Context
	*ttnpb.ApplicationUp
}

ContextualApplicationUp represents an ttnpb.ApplicationUp with its context.

type DownlinkQueueOperator added in v3.12.2 

type DownlinkQueueOperator interface {
	// DownlinkQueuePush pushes the given downlink messages to the end device's application downlink queue.
	DownlinkQueuePush(context.Context, *ttnpb.EndDeviceIdentifiers, []*ttnpb.ApplicationDownlink) error
	// DownlinkQueueReplace replaces the end device's application downlink queue with the given downlink messages.
	DownlinkQueueReplace(context.Context, *ttnpb.EndDeviceIdentifiers, []*ttnpb.ApplicationDownlink) error
	// DownlinkQueueList lists the application downlink queue of the given end device.
	DownlinkQueueList(context.Context, *ttnpb.EndDeviceIdentifiers) ([]*ttnpb.ApplicationDownlink, error)
}

DownlinkQueueOperator represents the Application Server downlink queue operations to application frontends.

type EndDeviceRegistry added in v3.17.2 

type EndDeviceRegistry interface {
	// GetEndDevice retrieves the end device from the Application Server end device registry.
	// This call will be delegated to the underlying end device registry, and should not be
	// used on the hot path. It exists for provisioning purposes.
	GetEndDevice(ctx context.Context, ids *ttnpb.EndDeviceIdentifiers, paths []string) (*ttnpb.EndDevice, error)
}

EndDeviceRegistry represents the Application Server end device registry to application frontends.

type PubSub added in v3.12.2 

type PubSub interface {
	// Publish publishes upstream traffic to the Application Server.
	Publish(ctx context.Context, up *ttnpb.ApplicationUp) error
	// Subscribe subscribes an application or integration by its identifiers to the Application Server, and returns a
	// Subscription for traffic and control. If the cluster parameter is true, the subscription receives all of the
	// traffic of the application. Otherwise, only traffic that was processed locally is sent.
	Subscribe(ctx context.Context, protocol string, ids *ttnpb.ApplicationIdentifiers, cluster bool) (*Subscription, error)
}

PubSub represents the Application Server Pub/Sub capabilities to application frontends.

type Server 

type Server interface {
	task.Starter
	httpclient.Provider
	PubSub
	DownlinkQueueOperator
	Cluster
	EndDeviceRegistry
	// FromRequestContext decouples the lifetime of the provided context from the values found in the context.
	FromRequestContext(context.Context) context.Context
	// GetBaseConfig returns the component configuration.
	GetBaseConfig(ctx context.Context) config.ServiceBase
	// FillContext fills the given context.
	// This method should only be used for request contexts.
	FillContext(ctx context.Context) context.Context
	// RateLimiter returns the rate limiter instance.
	RateLimiter() ratelimit.Interface
}

Server represents the Application Server to application frontends.

type Subscription 

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

Subscription is a subscription to an application or integration managed by a frontend.

func NewSubscription 

func NewSubscription(ctx context.Context, protocol string, ids *ttnpb.ApplicationIdentifiers, opts ...SubscriptionOption) *Subscription

NewSubscription instantiates a new application or integration subscription.

func (*Subscription) ApplicationIDs 

func (s *Subscription) ApplicationIDs() *ttnpb.ApplicationIdentifiers

ApplicationIDs returns the application identifiers, if the subscription represents any specific.

func (*Subscription) Context 

func (s *Subscription) Context() context.Context

Context returns the subscription context.

func (*Subscription) Disconnect 

func (s *Subscription) Disconnect(err error)

Disconnect marks the subscription as disconnected and cancels the context.

func (*Subscription) Pipe added in v3.15.0 

func (s *Subscription) Pipe(
	ctx context.Context,
	ts task.Starter,
	name string,
	submit func(context.Context, *ttnpb.ApplicationUp) error,
)

Pipe pipes the output of the Subscription to the provided handler.

func (*Subscription) Protocol 

func (s *Subscription) Protocol() string

Protocol returns the protocol used for the subscription, i.e. grpc, mqtt or http.

func (*Subscription) Publish added in v3.11.0 

func (s *Subscription) Publish(ctx context.Context, up *ttnpb.ApplicationUp) error

Publish publishes an upstream message.

func (*Subscription) Up 

func (s *Subscription) Up() <-chan *ContextualApplicationUp

Up returns the upstream channel.

type SubscriptionOption added in v3.15.1 

type SubscriptionOption interface {
	// contains filtered or unexported methods
}

SubscriptionOption is an option for a Subscription.

func WithBlocking added in v3.15.1 

func WithBlocking(blocking bool) SubscriptionOption

WithBlocking controls if the Publish call is blocking or not.

func WithBufferSize added in v3.16.0 

func WithBufferSize(bufferSize int) SubscriptionOption

WithBufferSize controls the size of the subscription buffer.

Source Files

View all Source files

Directories

Path Synopsis
Package mqtt implements the MQTT frontend.
 Package mqtt implements the MQTT frontend.
topics
Package topics implements MQTT topic layouts.
 Package topics implements MQTT topic layouts.
alcsync/v1
Package alcsyncv1 provides the LoRa Application Layer Clock Synchronization Package.
 Package alcsyncv1 provides the LoRa Application Layer Clock Synchronization Package.
loradms/v1
loradms/v1/api
loradms/v1/api/objects
loragls/v3
Package loracloudgeolocationv3 enables LoRa Cloud Geolocation Services integration.
 Package loracloudgeolocationv3 enables LoRa Cloud Geolocation Services integration.
loragls/v3/api
redis
Package redis provides implementation of the application packages registry using Redis.
 Package redis provides implementation of the application packages registry using Redis.
Package pubsub implements the go-cloud pub/sub frontend.
 Package pubsub implements the go-cloud pub/sub frontend.
provider
Package provider implements pub/sub provider interfaces and registration.
 Package provider implements pub/sub provider interfaces and registration.
provider/mock
Package mock implements a mock pub/sub provider using the mempubsub driver.
 Package mock implements a mock pub/sub provider using the mempubsub driver.
provider/mqtt
Package mqtt implements the MQTT provider using the mqtt driver.
 Package mqtt implements the MQTT provider using the mqtt driver.
provider/nats
Package nats implements the NATS provider using the natspubsub driver.
 Package nats implements the NATS provider using the natspubsub driver.
redis
web
Package web implements the webhooks integration.
 Package web implements the webhooks integration.
internal
Package internal contains internal webhook utilities.
 Package internal contains internal webhook utilities.
redis
sink
Package sink provides an interface for processing HTTP requests.
 Package sink provides an interface for processing HTTP requests.
sink/mock
Package mock provides a mock sink for testing.
 Package mock provides a mock sink for testing.

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