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client.go
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client.go
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package client
import (
"context"
"time"
errorAVA "github.com/ver13/ava/pkg/common/error"
)
var (
// DefaultClient is a default client to use out of the box
DefaultClient ClientI = newRpcClient()
// DefaultBackoff is the default backoff function for retries
DefaultBackoff = exponentialBackoff
// DefaultRetry is the default check-for-retry function for retries
DefaultRetry = RetryOnError
// DefaultRetries is the default number of times a request is tried
DefaultRetries = 1
// DefaultRequestTimeout is the default request timeout
DefaultRequestTimeout = time.Second * 5
// DefaultPoolSize sets the connection pool size
DefaultPoolSize = 100
// DefaultPoolTTL sets the connection pool ttl
DefaultPoolTTL = time.Minute
// NewClient returns a new client
NewClient func(...Option) ClientI = newRpcClient
)
// Makes a synchronous call to a service using the default client
func Call(ctx context.Context, request RequestI, response interface{}, opts ...CallOption) *errorAVA.Error {
return DefaultClient.Call(ctx, request, response, opts...)
}
// Publishes a publication using the default client. Using the underlying broker
// set within the options.
func Publish(ctx context.Context, msg MessageI, opts ...PublishOption) *errorAVA.Error {
return DefaultClient.Publish(ctx, msg, opts...)
}
// Creates a new message using the default client
func NewMessage(topic string, payload interface{}, opts ...MessageOption) MessageI {
return DefaultClient.NewMessage(topic, payload, opts...)
}
// Creates a new request using the default client. Content Type will
// be set to the default within options and use the appropriate codec
func NewRequest(service, endpoint string, request interface{}, reqOpts ...RequestOption) RequestI {
return DefaultClient.NewRequest(service, endpoint, request, reqOpts...)
}
// Creates a streaming connection with a service and returns responses on the
// channel passed in. It's up to the user to close the streamer.
func NewStream(ctx context.Context, request RequestI, opts ...CallOption) (StreamI, *errorAVA.Error) {
return DefaultClient.Stream(ctx, request, opts...)
}
func String() string {
return DefaultClient.String()
}