microservices-demo/src/currencyservice/client.js
2018-06-22 14:51:01 -07:00

58 lines
1.6 KiB
JavaScript

/*
*
* 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.
*
*/
const path = require('path');
const grpc = require('grpc');
const PROTO_PATH = path.join(__dirname, './proto/demo.proto');
const PORT = 31337;
const shopProto = grpc.load(PROTO_PATH).hipstershop;
const client = new shopProto.CurrencyService(`localhost:${PORT}`,
grpc.credentials.createInsecure());
const request = {
from: {
currency_code: 'USD',
amount: {
decimal: 300,
fractional: 0
}
},
to_code: 'CHF'
};
function _moneyToString (m) {
return `${m.amount.decimal}.${m.amount.fractional} ${m.currency_code}`;
}
client.getSupportedCurrencies({}, (err, response) => {
if (err) {
console.error(`Error in getSupportedCurrencies: ${err}`);
} else {
console.log(`Currency codes: ${response.currency_codes}`);
}
});
client.convert(request, function (err, response) {
if (err) {
console.error(`Error in convert: ${err}`);
} else {
console.log(`Convert: ${_moneyToString(request.from)} to ${_moneyToString(response)}`);
}
});