Run the example

  1. Install and run the gateway
  2. Download the Go client library
  3. Copy the root certificate of the gateway to your working directory. As default, the certificate(ca.crt) resides in cert of the installation directory.

  4. Change the gateway and the device information in src/example/server/test/test.go as needed.

     // the path of the root certificate
 GATEWAY_CA_FILE = "../../../../cert/gateway/ca.crt"

 // the address of the device gateway
 GATEWAY_IP = "192.168.0.2"
 GATEWAY_PORT = 4000

 // the ip address of the target device
 DEV_IP = "192.168.0.110"
 DEV_PORT = 51211
 USE_SSL = false

  5. Build.

     cd src/example/server/test
 go build .

  6. Run.

     ./test

1. Connect to the gateway and the device

The example assumes you use the device gateway. For the master gateway or other connection options, refer to the Connect or ConnectMaster examples.

  gatewayClient := &client.GatewayClient{}
  gatewayClient.Connect(GATEWAY_CA_FILE, GATEWAY_IP, GATEWAY_PORT)

  connectSvc = connect.NewConnectSvc(gatewayClient.GetConn())
  deviceID, _ := connectSvc.Connect(DEV_IP, DEV_PORT, USE_SSL)

2. Subscribe

To receive requests from devices, you have to configure the related options as described, first.

  testConfig.UseServerMatching = true
  authSvc.SetConfig(deviceID, testConfig)

Then, you have to subscribe to the request channel.

  reqStream, cancelFunc, _ := serverSvc.Subscribe(QUEUE_SIZE)

3. Handle verification requests

With server matching enabled, the device will send a verification request to the gateway when it reads a card. You can implement your own logic and return its result to the device using HandleVerify.

  req, _ := reqStream.Recv()

  if returnError { // emulate verification failure
    serverSvc.HandleVerify(req, server.ServerErrorCode_VERIFY_FAIL, nil)
  } else { // emulate verification success
    userInfo := &user.UserInfo{
      Hdr: &user.UserHdr{
        ID: TEST_USER_ID,
        NumOfCard: 1,
      },
      Cards: []*card.CSNCardData{
        &card.CSNCardData{
          Data: req.VerifyReq.CardData,
        },
      },
    }

    serverSvc.HandleVerify(req, server.ServerErrorCode_SUCCESS, userInfo)
  }

4. Handle identification requests

With server matching enabled, the device will send an identification request to the gateway when it reads a fingerprint. You can implement your own logic and return its result to the device using HandleIdentify.

  req, _ := reqStream.Recv()

  if returnError { // emulate identification failure
    serverSvc.HandleVerify(req, server.ServerErrorCode_IDENTIFY_FAIL, nil)
  } else { // emulate identification success
    userInfo := &user.UserInfo{
      Hdr: &user.UserHdr{
        ID: TEST_USER_ID,
        NumOfFinger: 1,
      },
      Fingers: []*finger.FingerData{
        &finger.FingerData{
          Templates: [][]byte{
            req.IdentifyReq.TemplateData,
            req.IdentifyReq.TemplateData,
          },
        },
      },
    }

    serverSvc.HandleIdentify(req, server.ServerErrorCode_SUCCESS, userInfo)
  }

Updated: