mirror of https://github.com/linka-cloud/grpc.git
55 lines
1.7 KiB
Go
55 lines
1.7 KiB
Go
package metadata
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import (
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"context"
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"google.golang.org/grpc"
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"google.golang.org/grpc/metadata"
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"go.linka.cloud/grpc/interceptors"
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)
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func NewInterceptors(pairs ...string) interceptors.Interceptors {
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return mdInterceptors{pairs: pairs}
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}
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type mdInterceptors struct {
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pairs []string
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}
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func (i mdInterceptors) UnaryServerInterceptor() grpc.UnaryServerInterceptor {
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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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if err := grpc.SetHeader(ctx, metadata.Pairs(i.pairs...)); err != nil {
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return nil, err
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}
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return handler(ctx, req)
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}
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}
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func (i mdInterceptors) StreamServerInterceptor() grpc.StreamServerInterceptor {
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return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
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if err := grpc.SetHeader(ss.Context(), metadata.Pairs(i.pairs...)); err != nil {
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return err
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}
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return handler(srv, ss)
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}
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}
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func (i mdInterceptors) UnaryClientInterceptor() grpc.UnaryClientInterceptor {
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return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
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if err := grpc.SetHeader(ctx, metadata.Pairs(i.pairs...)); err != nil {
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return err
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}
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return invoker(ctx, method, req, reply, cc, opts...)
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}
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}
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func (i mdInterceptors) StreamClientInterceptor() grpc.StreamClientInterceptor {
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return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
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if err := grpc.SetHeader(ctx, metadata.Pairs(i.pairs...)); err != nil {
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return nil, err
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}
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return streamer(ctx, desc, cc, method, opts...)
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}
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}
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