I am currently trying to send a request to a nodejs server from a java client that I created but I am getting the error that is showing above. I've been doing some research on it but can seem to figure out why it is happening. The server I created in nodejs:
var grpc = require('grpc');
const protoLoader = require('@grpc/proto-loader')
const packageDefinition = protoLoader.loadSync('AirConditioningDevice.proto')
var AirConditioningDeviceproto = grpc.loadPackageDefinition(packageDefinition);
var AirConditioningDevice = [{
device_id: 1,
name: 'Device1',
location: 'room1',
status: 'On',
new_tempature: 11
}];
var server = new grpc.Server();
server.addService(AirConditioningDeviceproto.AirConditioningDevice.Airconditioning_service.service,{
currentDetails: function(call, callback){
console.log(call.request.device_id);
for(var i =0; i <AirConditioningDevice.length; i++){
console.log(call.request.device_id);
if(AirConditioningDevice[i].device_id == call.request.device_id){
console.log(call.request.device_id);
return callback(null, AirConditioningDevice [i]);
}
console.log(call.request.device_id);
}
console.log(call.request.device_id);
callback({
code: grpc.status.NOT_FOUND,
details: 'Not found'
});
},
setTemp: function(call, callback){
for(var i =0; i <AirConditioningDevice.length; i++){
if(AirConditioningDevice[i].device_id == call.request.device_id){
AirConditioningDevice[i].new_tempature == call.request.new_tempature;
return callback(null, AirConditioningDevice[i]);
}
}
callback({
code: grpc.status.NOT_FOUND,
details: 'Not found'
});
},
setOff: function(call, callback){
for(var i =0; i <AirConditioningDevice.length; i++){
if(AirConditioningDevice[i].device_id == call.request.device_id && AirConditioningDevice[i].status == 'on'){
AirConditioningDevice[i].status == 'off';
return callback(null, AirConditioningDevice[i]);
}else{
AirConditioningDevice[i].status == 'on';
return callback(null, AirConditioningDevice[i]);
}
}
callback({
code: grpc.status.NOT_FOUND,
details: 'Not found'
});
}
});
server.bind('localhost:3000', grpc.ServerCredentials.createInsecure());
server.start();
This is the client that I have created in java:
package com.air.grpc;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import com.air.grpc.Airconditioning_serviceGrpc;
import com.air.grpc.GrpcClient;
import com.air.grpc.deviceIDRequest;
import com.air.grpc.ACResponse;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
import io.grpc.StatusRuntimeException;
public class GrpcClient {
private static final Logger logger = Logger.getLogger(GrpcClient.class.getName());
private final ManagedChannel channel;
private final Airconditioning_serviceGrpc.Airconditioning_serviceBlockingStub blockingStub;
private final Airconditioning_serviceGrpc.Airconditioning_serviceStub asyncStub;
public GrpcClient(String host, int port) {
this(ManagedChannelBuilder.forAddress(host, port)
// Channels are secure by default (via SSL/TLS). For the example we disable TLS to avoid
// needing certificates.
.usePlaintext()
.build());
}
GrpcClient(ManagedChannel channel) {
this.channel = channel;
blockingStub = Airconditioning_serviceGrpc.newBlockingStub(channel);
asyncStub = Airconditioning_serviceGrpc.newStub(channel);
}
public void shutdown() throws InterruptedException {
channel.shutdown().awaitTermination(5, TimeUnit.SECONDS);
}
public void currentDetails(int id) {
logger.info("Will try to get device " + id + " ...");
deviceIDRequest deviceid = deviceIDRequest.newBuilder().setDeviceId(id).build();
ACResponse response;
try {
response =blockingStub.currentDetails(deviceid);
}catch(StatusRuntimeException e) {
logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus());
return;
}
logger.info("Device: " + response.getAirConditioning ());
}
public static void main(String[] args) throws Exception {
GrpcClient client = new GrpcClient("localhost", 3000);
try {
client.currentDetails(1);
}finally {
client.shutdown();
}
}
}
Right now the only one that I have tested cause its the most basic one is currentdetails. As you can see I have created an AirConditioningDevice object. I am trying to get the details of it by typing in 1 to a textbox which is the id but like i said when i send it i get the error in the title. This is the proto file that I have created:
syntax = "proto3";
package AirConditioningDevice;
option java_package = "AircondioningDevice.proto.ac";
service Airconditioning_service{
rpc currentDetails(deviceIDRequest) returns (ACResponse) {};
rpc setTemp( TempRequest ) returns (ACResponse) {};
rpc setOff(deviceIDRequest) returns (ACResponse) {};
}
message AirConditioning{
int32 device_id =1;
string name = 2;
string location = 3;
string status = 4;
int32 new_tempature = 5;
}
message deviceIDRequest{
int32 device_id =1;
}
message TempRequest {
int32 device_id = 1;
int32 new_temp = 2;
}
message ACResponse {
AirConditioning airConditioning = 1;
}
lastly this is everything I get back in the console:
Apr 02, 2020 4:23:29 PM AircondioningDevice.proto.ac.AirConClient currentDetails
INFO: Will try to get device 1 ...
Apr 02, 2020 4:23:30 PM AircondioningDevice.proto.ac.AirConClient currentDetails
WARNING: RPC failed: Status{code=NOT_FOUND, description=Not found, cause=null}
I dont know whether I am completely off or if the error is small. Any suggestions? One other thing is I the same proto file in the java client and the node server I dont know if that matters. One last this is I also get this when i run my server: DeprecationWarning: grpc.load: Use the @grpc/proto-loader module with grpc.loadPackageDefinition instead I dont know if that has anything to do with it.
