Mainflux.mainflux/users/api/grpc/client.go

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2018-05-11 05:53:25 +08:00
package grpc
import (
"github.com/go-kit/kit/endpoint"
kitgrpc "github.com/go-kit/kit/transport/grpc"
"github.com/mainflux/mainflux"
"golang.org/x/net/context"
"google.golang.org/grpc"
)
var _ mainflux.UsersServiceClient = (*grpcClient)(nil)
type grpcClient struct {
identify endpoint.Endpoint
}
// NewClient returns new gRPC client instance.
func NewClient(conn *grpc.ClientConn) mainflux.UsersServiceClient {
endpoint := kitgrpc.NewClient(
conn,
"mainflux.UsersService",
"Identify",
encodeIdentifyRequest,
decodeIdentifyResponse,
mainflux.Identity{},
).Endpoint()
return &grpcClient{endpoint}
}
func (client grpcClient) Identify(ctx context.Context, token *mainflux.Token, _ ...grpc.CallOption) (*mainflux.Identity, error) {
res, err := client.identify(ctx, identityReq{token.GetValue()})
if err != nil {
return nil, err
}
ir := res.(identityRes)
return &mainflux.Identity{Value: ir.id}, ir.err
}
func encodeIdentifyRequest(_ context.Context, grpcReq interface{}) (interface{}, error) {
req := grpcReq.(identityReq)
return &mainflux.Token{Value: req.token}, nil
}
func decodeIdentifyResponse(_ context.Context, grpcRes interface{}) (interface{}, error) {
res := grpcRes.(*mainflux.Identity)
return identityRes{res.GetValue(), nil}, nil
}