Documentation
¶
Overview ¶
Package async provides async consumer abstractions and component.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func DetermineDecoder ¶
func DetermineDecoder(contentType string) (encoding.DecodeRawFunc, error)
DetermineDecoder determines the decoder based on the content type.
Types ¶
type Builder ¶
type Builder struct {
// contains filtered or unexported fields
}
Builder gathers all required properties in order to construct a component.
func New ¶
func New(name string, cf ConsumerFactory, proc ProcessorFunc) *Builder
New initializes a new builder for a component with the given name by default the failStrategy will be NackExitStrategy.
func (*Builder) WithConcurrency ¶ added in v0.48.0
WithConcurrency specifies the number of worker goroutines for processing messages in parallel default value is '1' do NOT enable concurrency value for in-order consumers, such as Kafka or FIFO SQS.
func (*Builder) WithFailureStrategy ¶
func (cb *Builder) WithFailureStrategy(fs FailStrategy) *Builder
WithFailureStrategy defines the failure strategy to be used default value is NackExitStrategy it will append an error to the builder if the strategy is not one of the pre-defined ones.
func (*Builder) WithRetries ¶
WithRetries specifies the retry events number for the component default value is '0'.
type Component ¶
type Component struct {
// contains filtered or unexported fields
}
Component implementation of an async component.
type Consumer ¶
type Consumer interface {
Consume(context.Context) (<-chan Message, <-chan error, error)
OutOfOrder() bool
Close() error
}
Consumer interface which every specific consumer has to implement.
type ConsumerFactory ¶
ConsumerFactory interface for creating consumers.
type FailStrategy ¶
type FailStrategy int
FailStrategy type definition.
const ( // NackExitStrategy does not acknowledge the message and exits the application on error. NackExitStrategy FailStrategy = iota // NackStrategy does not acknowledge the message, leaving it for reprocessing, and continues. NackStrategy // AckStrategy acknowledges message and continues. AckStrategy )
type Message ¶
type Message interface {
Context() context.Context
Decode(v interface{}) error
Ack() error
Nack() error
Source() string
Payload() []byte
Raw() interface{}
}
Message interface for defining messages that are handled by the async component.
type ProcessorFunc ¶
ProcessorFunc definition of an async processor.
Source Files
Directories
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| Path | Synopsis |
|---|---|
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Package amqp provides consumer implementation with included tracing capabilities.
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Package amqp provides consumer implementation with included tracing capabilities. |
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Package kafka provides consumer abstractions and base functionality with included tracing capabilities.
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Package kafka provides consumer abstractions and base functionality with included tracing capabilities. |
|
group
Package group provides a consumer group implementation.
|
Package group provides a consumer group implementation. |
|
simple
Package simple provides a simple consumer implementation without consumer groups.
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Package simple provides a simple consumer implementation without consumer groups. |
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Package sqs provides consumer implementation with included tracing capabilities.
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Package sqs provides consumer implementation with included tracing capabilities. |