File size: 1,826 Bytes
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*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
require('@google-cloud/trace-agent').start();
const path = require('path');
const grpc = require('grpc');
const pino = require('pino');
const PROTO_PATH = path.join(__dirname, './proto/demo.proto');
const PORT = 7000;
const shopProto = grpc.load(PROTO_PATH).hipstershop;
const client = new shopProto.CurrencyService(`localhost:${PORT}`,
grpc.credentials.createInsecure());
const logger = pino({
name: 'currencyservice-client',
messageKey: 'message',
formatters: {
level (logLevelString, logLevelNum) {
return { severity: logLevelString }
}
}
});
const request = {
from: {
currency_code: 'CHF',
units: 300,
nanos: 0
},
to_code: 'EUR'
};
function _moneyToString (m) {
return `${m.units}.${m.nanos.toString().padStart(9,'0')} ${m.currency_code}`;
}
client.getSupportedCurrencies({}, (err, response) => {
if (err) {
logger.error(`Error in getSupportedCurrencies: ${err}`);
} else {
logger.info(`Currency codes: ${response.currency_codes}`);
}
});
client.convert(request, (err, response) => {
if (err) {
logger.error(`Error in convert: ${err}`);
} else {
logger.log(`Convert: ${_moneyToString(request.from)} to ${_moneyToString(response)}`);
}
});
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