github.com/mre-fog/trillianxx@v1.1.2-0.20180615153820-ae375a99d36a/examples/vmap/trillian_map_client/main.go (about)

     1  // Copyright 2016 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // The trillian_map_client binary performs a trivial map operation.
    16  package main
    17  
    18  import (
    19  	"context"
    20  	"flag"
    21  
    22  	"github.com/golang/glog"
    23  	"github.com/google/trillian"
    24  	"github.com/google/trillian/testonly"
    25  	"google.golang.org/grpc"
    26  )
    27  
    28  var server = flag.String("server", "localhost:8091", "Server address:port")
    29  
    30  func main() {
    31  	flag.Parse()
    32  	defer glog.Flush()
    33  
    34  	conn, err := grpc.Dial(*server, grpc.WithInsecure())
    35  	if err != nil {
    36  		glog.Fatal(err)
    37  	}
    38  	defer conn.Close()
    39  
    40  	c := trillian.NewTrillianMapClient(conn)
    41  
    42  	key := "This Is A Key"
    43  	index := testonly.HashKey(key)
    44  
    45  	{
    46  		req := &trillian.SetMapLeavesRequest{
    47  			MapId: 1,
    48  			Leaves: []*trillian.MapLeaf{
    49  				{
    50  					Index:     index,
    51  					LeafHash:  []byte("This is a leaf hash"),
    52  					LeafValue: []byte("This is a leaf value"),
    53  					ExtraData: []byte("This is some extra data"),
    54  				},
    55  			},
    56  		}
    57  		resp, err := c.SetLeaves(context.Background(), req)
    58  		if err != nil {
    59  			glog.Error(err)
    60  			return
    61  		}
    62  		glog.Infof("Got SetLeaves response: %+v", resp)
    63  	}
    64  
    65  	{
    66  		req := &trillian.GetMapLeavesRequest{
    67  			MapId: 1,
    68  			Index: [][]byte{
    69  				index,
    70  			},
    71  		}
    72  		resp, err := c.GetLeaves(context.Background(), req)
    73  		if err != nil {
    74  			glog.Error(err)
    75  		}
    76  		glog.Infof("Got GetLeaves response: %+v", resp)
    77  	}
    78  }