iotdevice

package
v0.6.3-0...-d8fb617 Latest Latest
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 Go to latest Published: Feb 5, 2021 License: MIT Imports: 12 Imported by: 0

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Constants

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Variables

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var ErrClosed = errors.New("closed")

ErrClosed the client is already closed.

Functions

This section is empty.

Types

type Client 

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

Client is iothub device client.

func New 

func New(
	transport transport.Transport, creds transport.Credentials, opts ...ClientOption,
) (*Client, error)

New returns new iothub client.

func NewFromConnectionString 

func NewFromConnectionString(
	transport transport.Transport, cs string, opts ...ClientOption,
) (*Client, error)

NewFromConnectionString creates a device client based on the given connection string.

func NewFromX509Cert 

func NewFromX509Cert(
	transport transport.Transport,
	deviceID, hostName string, crt *tls.Certificate,
	opts ...ClientOption,
) (*Client, error)

func NewFromX509FromFile 

func NewFromX509FromFile(
	transport transport.Transport,
	deviceID, hostname, certFile, keyFile string,
	opts ...ClientOption,
) (*Client, error)

func (*Client) Close 

func (c *Client) Close() error

Close closes transport connection.

func (*Client) Connect 

func (c *Client) Connect(ctx context.Context) error

Connect connects to the iothub all subsequent calls will block until this function finishes with no error so it's clien's responsibility to connect in the background by running it in a goroutine and control other method invocations or call in in a synchronous way.

func (*Client) DeviceID 

func (c *Client) DeviceID() string

DeviceID returns iothub device id.

func (*Client) RegisterMethod 

func (c *Client) RegisterMethod(ctx context.Context, name string, fn DirectMethodHandler) error

RegisterMethod registers the given direct method handler, returns an error when method is already registered. If f returns an error and empty body its error string used as value of the error attribute in the result json.

func (*Client) RetrieveTwinState 

func (c *Client) RetrieveTwinState(ctx context.Context) (desired, reported TwinState, err error)

RetrieveTwinState returns desired and reported twin device states.

func (*Client) SendEvent 

func (c *Client) SendEvent(ctx context.Context, payload []byte, opts ...SendOption) error

SendEvent sends a device-to-cloud message. Panics when event is nil.

func (*Client) SubscribeEvents 

func (c *Client) SubscribeEvents(ctx context.Context) (*EventSub, error)

SubscribeEvents subscribes to cloud-to-device events and returns a subscription struct.

func (*Client) SubscribeTwinUpdates 

func (c *Client) SubscribeTwinUpdates(ctx context.Context) (*TwinStateSub, error)

SubscribeTwinUpdates registers fn as a desired state changes handler.

func (*Client) UnregisterMethod 

func (c *Client) UnregisterMethod(name string)

UnregisterMethod unregisters the named method.

func (*Client) UnsubscribeEvents 

func (c *Client) UnsubscribeEvents(sub *EventSub)

UnsubscribeEvents makes the given subscription to stop receiving messages.

func (*Client) UnsubscribeTwinUpdates 

func (c *Client) UnsubscribeTwinUpdates(sub *TwinStateSub)

UnsubscribeTwinUpdates unsubscribes the given handler from twin state updates.

func (*Client) UpdateTwinState 

func (c *Client) UpdateTwinState(ctx context.Context, s TwinState) (int, error)

UpdateTwinState updates twin device's state and returns new version. To remove any attribute set its value to nil.

type ClientOption 

type ClientOption func(c *Client)

ClientOption is a client configuration option.

func WithLogger 

func WithLogger(l logger.Logger) ClientOption

WithLogger changes default logger, default it an stdout logger.

type DirectMethodHandler 

type DirectMethodHandler func(p map[string]interface{}) (map[string]interface{}, error)

DirectMethodHandler handles direct method invocations.

type EventSub 

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

func (*EventSub) C 

func (s *EventSub) C() <-chan *common.Message

func (*EventSub) Err 

func (s *EventSub) Err() error

type ModuleClient 

type ModuleClient struct {
	Client
}

ModuleClient is iothub device client adapted for use with a module connection

func NewModule 

func NewModule(
	transport transport.Transport, creds transport.Credentials, opts ...ClientOption,
) (*ModuleClient, error)

NewModule returns a new ModuleClient struct

func NewModuleFromConnectionString 

func NewModuleFromConnectionString(
	transport transport.Transport,
	cs, gatewayHostName, moduleGenerationID, workloadURI string,
	edge bool,
	opts ...ClientOption,
) (*ModuleClient, error)

NewModuleFromConnectionString returns a ModuleClient struct with credentials based off of a supplied connection string

func NewModuleFromEnvironment 

func NewModuleFromEnvironment(
	transport transport.Transport,
	edge bool,
	opts ...ClientOption,
) (*ModuleClient, error)

func (*ModuleClient) Broker 

func (c *ModuleClient) Broker() string

Broker returns broker property from client's credential property

func (*ModuleClient) Gateway 

func (c *ModuleClient) Gateway() string

Gateway returns gateway hostname property from client's credential property

func (*ModuleClient) GenerationID 

func (c *ModuleClient) GenerationID() string

GenerationID returns generation ID property from client's credential property

func (*ModuleClient) ModuleID 

func (c *ModuleClient) ModuleID() string

ModuleID returns module ID property from client's credential property

type ModuleSharedAccessKeyCredentials 

type ModuleSharedAccessKeyCredentials struct {
	SharedAccessKeyCredentials        // embedded SharedAccessKeyCredentials struct
	ModuleID                   string // moduleID
	Gateway                    string // name of host gateway
	GenerationID               string // module generation ID
	WorkloadURI                string // IoT Edge workload API URI
	EdgeGateway                bool   // connect via edgeHub
}

ModuleSharedAccessKeyCredentials is a SharedAccessKeyCredentials struct adapted for module connections

func ParseModuleConnectionString 

func ParseModuleConnectionString(cs string) (*ModuleSharedAccessKeyCredentials, error)

ParseModuleConnectionString returns a ModuleSharedAccessKeyCredentials struct with some properties derrived from a supplied connection string

func ParseModuleEnvironmentVariables 

func ParseModuleEnvironmentVariables() (*ModuleSharedAccessKeyCredentials, error)

func (*ModuleSharedAccessKeyCredentials) GetBroker 

func (c *ModuleSharedAccessKeyCredentials) GetBroker() string

GetBroker returns gateway host name if UseEdgeGateway is true, else returns IoT Hub host name

func (*ModuleSharedAccessKeyCredentials) GetCertificate 

func (c *ModuleSharedAccessKeyCredentials) GetCertificate() *tls.Certificate

GetCertificate returns nil. Only here to satisfy Credentials interface

func (*ModuleSharedAccessKeyCredentials) GetGateway 

func (c *ModuleSharedAccessKeyCredentials) GetGateway() string

GetGateway returns Gateway Host Name

func (*ModuleSharedAccessKeyCredentials) GetGenerationID 

func (c *ModuleSharedAccessKeyCredentials) GetGenerationID() string

GetGenerationID returns GenerationID

func (*ModuleSharedAccessKeyCredentials) GetModuleID 

func (c *ModuleSharedAccessKeyCredentials) GetModuleID() string

GetModuleID returns ModuleID

func (*ModuleSharedAccessKeyCredentials) GetSAK 

func (c *ModuleSharedAccessKeyCredentials) GetSAK() string

GetSAK returns SharedAccessKey

func (*ModuleSharedAccessKeyCredentials) GetWorkloadURI 

func (c *ModuleSharedAccessKeyCredentials) GetWorkloadURI() string

GetWorkloadURI returns the URI of the IoT Edge workload API

func (*ModuleSharedAccessKeyCredentials) UseEdgeGateway 

func (c *ModuleSharedAccessKeyCredentials) UseEdgeGateway() bool

UseEdgeGateway returns bool to connect via edgeHub or directly to IoT Hub

type SendOption 

type SendOption func(msg *common.Message) error

SendOption is a send event options.

func WithSendCorrelationID 

func WithSendCorrelationID(cid string) SendOption

WithSendCorrelationID sets message correlation id.

func WithSendMessageID 

func WithSendMessageID(mid string) SendOption

WithSendMessageID sets message id.

func WithSendProperties 

func WithSendProperties(m map[string]string) SendOption

WithSendProperties same as `WithSendProperty` but accepts map of keys and values.

func WithSendProperty 

func WithSendProperty(k, v string) SendOption

WithSendProperty sets a message option.

func WithSendQoS 

func WithSendQoS(qos int) SendOption

WithSendQoS sets the quality of service (MQTT only). Only 0 and 1 values are supported, defaults to 1.

type SharedAccessKeyCredentials 

type SharedAccessKeyCredentials struct {
	DeviceID string
	common.SharedAccessKey
}

func ParseConnectionString 

func ParseConnectionString(cs string) (*SharedAccessKeyCredentials, error)

func (*SharedAccessKeyCredentials) GetBroker 

func (c *SharedAccessKeyCredentials) GetBroker() string

GetBroker not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) GetCertificate 

func (c *SharedAccessKeyCredentials) GetCertificate() *tls.Certificate

GetCertificate not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) GetDeviceID 

func (c *SharedAccessKeyCredentials) GetDeviceID() string

func (*SharedAccessKeyCredentials) GetGateway 

func (c *SharedAccessKeyCredentials) GetGateway() string

GetGateway not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) GetGenerationID 

func (c *SharedAccessKeyCredentials) GetGenerationID() string

GetGenerationID not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) GetHostName 

func (c *SharedAccessKeyCredentials) GetHostName() string

func (*SharedAccessKeyCredentials) GetModuleID 

func (c *SharedAccessKeyCredentials) GetModuleID() string

GetModuleID not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) GetSAK 

func (c *SharedAccessKeyCredentials) GetSAK() string

GetSAK not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) GetWorkloadURI 

func (c *SharedAccessKeyCredentials) GetWorkloadURI() string

GetWorkloadURI not implemented for SharedAccessKeyCredentials

func (*SharedAccessKeyCredentials) UseEdgeGateway 

func (c *SharedAccessKeyCredentials) UseEdgeGateway() bool

UseEdgeGateway not implemented for SharedAccessKeyCredentials

type TwinState 

type TwinState map[string]interface{}

TwinState is both desired and reported twin device's state.

func (TwinState) Version 

func (s TwinState) Version() int

Version is state version.

type TwinStateSub 

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

func (*TwinStateSub) C 

func (s *TwinStateSub) C() <-chan TwinState

func (*TwinStateSub) Err 

func (s *TwinStateSub) Err() error

type X509Credentials 

type X509Credentials struct {
	HostName    string
	DeviceID    string
	Certificate *tls.Certificate
}

func (*X509Credentials) GetBroker 

func (c *X509Credentials) GetBroker() string

GetBroker not implemented for X509Credentials

func (*X509Credentials) GetCertificate 

func (c *X509Credentials) GetCertificate() *tls.Certificate

func (*X509Credentials) GetDeviceID 

func (c *X509Credentials) GetDeviceID() string

func (*X509Credentials) GetGateway 

func (c *X509Credentials) GetGateway() string

GetGateway not implemented for X509Credentials

func (*X509Credentials) GetGenerationID 

func (c *X509Credentials) GetGenerationID() string

GetGenerationID not implemented for X509Credentials

func (*X509Credentials) GetHostName 

func (c *X509Credentials) GetHostName() string

func (*X509Credentials) GetModuleID 

func (c *X509Credentials) GetModuleID() string

GetModuleID not implemented for X509Credentials

func (*X509Credentials) GetSAK 

func (c *X509Credentials) GetSAK() string

GetSAK not implemented for X509Credentials

func (*X509Credentials) GetWorkloadURI 

func (c *X509Credentials) GetWorkloadURI() string

GetWorkloadURI not implemented for X509Credentials

func (*X509Credentials) Token 

func (c *X509Credentials) Token(
	resource string, lifetime time.Duration,
) (*common.SharedAccessSignature, error)

func (*X509Credentials) TokenFromEdge 

func (c *X509Credentials) TokenFromEdge(
	workloadURI, module, genid, resource string, lifetime time.Duration,
) (*common.SharedAccessSignature, error)

TokenFromEdge not implemented for X509Credentials

func (*X509Credentials) UseEdgeGateway 

func (c *X509Credentials) UseEdgeGateway() bool

UseEdgeGateway not implemented for X509Credentials

Source Files

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Directories

Path Synopsis
mqtt

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