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28 lines
769 B
28 lines
769 B
package mw
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import (
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"context"
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"google.golang.org/grpc"
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)
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func InterceptChain(intercepts ...grpc.UnaryServerInterceptor) grpc.UnaryServerInterceptor {
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l := len(intercepts)
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return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
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chain := func(currentInter grpc.UnaryServerInterceptor, currentHandler grpc.UnaryHandler) grpc.UnaryHandler {
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return func(currentCtx context.Context, currentReq interface{}) (interface{}, error) {
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return currentInter(
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currentCtx,
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currentReq,
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info,
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currentHandler)
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}
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}
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chainHandler := handler
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for i := l - 1; i >= 0; i-- {
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chainHandler = chain(intercepts[i], chainHandler)
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}
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return chainHandler(ctx, req)
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}
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}
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