39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
'use strict';
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const tracer = require('./tracer')(('example-grpc-server'));
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// eslint-disable-next-line import/order
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const grpc = require('grpc');
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const messages = require('./helloworld_pb');
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const services = require('./helloworld_grpc_pb');
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const PORT = 50051;
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/** Starts a gRPC server that receives requests on sample server port. */
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function startServer() {
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// Creates a server
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const server = new grpc.Server();
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server.addService(services.GreeterService, { sayHello });
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server.bind(`0.0.0.0:${PORT}`, grpc.ServerCredentials.createInsecure());
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console.log(`binding server on 0.0.0.0:${PORT}`);
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server.start();
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}
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function sayHello(call, callback) {
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const currentSpan = tracer.getCurrentSpan();
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// display traceid in the terminal
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console.log(`traceid: ${currentSpan.context().traceId}`);
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const span = tracer.startSpan('server.js:sayHello()', {
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parent: currentSpan,
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kind: 1, // server
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attributes: { key: 'value' },
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});
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span.addEvent(`invoking sayHello() to ${call.request.getName()}`);
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const reply = new messages.HelloReply();
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reply.setMessage(`Hello ${call.request.getName()}`);
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callback(null, reply);
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span.end();
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}
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startServer();
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