mirror of
https://github.com/go-micro/go-micro.git
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52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package client
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/*
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Wrapper is a type of middleware for the go-micro client. It allows
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the client to be "wrapped" so that requests and responses can be intercepted
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to perform extra requirements such as auth, tracing, monitoring, logging, etc.
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Example usage:
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import (
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"log"
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"github.com/micro/go-micro/client"
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)
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type LogWrapper struct {
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client.Client
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}
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func (l *LogWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
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log.Println("Making request to service " + req.Service() + " method " + req.Method())
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return w.Client.Call(ctx, req, rsp)
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}
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func Wrapper(c client.Client) client.Client {
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return &LogWrapper{c}
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}
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func main() {
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c := client.NewClient(client.Wrap(Wrapper))
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}
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*/
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import (
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"golang.org/x/net/context"
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)
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// CallFunc represents the individual call func
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type CallFunc func(ctx context.Context, address string, req Request, rsp interface{}, opts CallOptions) error
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// CallWrapper is a low level wrapper for the CallFunc
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type CallWrapper func(CallFunc) CallFunc
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// Wrapper wraps a client and returns a client
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type Wrapper func(Client) Client
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// StreamWrapper wraps a Stream and returns the equivalent
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type StreamWrapper func(Streamer) Streamer
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