7f40378ecc
change the log format in Python and Node.js services. Effected services are currencyservice, emailservice, paymentservice, and recommendationservice. Loadgenerator is left as is because of the diffculty to change the log format and log target in locust. ref. #47
83 lines
2.7 KiB
JavaScript
83 lines
2.7 KiB
JavaScript
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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const cardValidator = require('simple-card-validator');
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const uuid = require('uuid/v4');
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const pino = require('pino');
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const logger = pino({
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name: 'paymentservice-charge',
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messageKey: 'message',
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changeLevelName: 'severity',
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useLevelLabels: true
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});
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class CreditCardError extends Error {
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constructor (message) {
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super(message);
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this.code = 400; // Invalid argument error
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}
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}
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class InvalidCreditCard extends CreditCardError {
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constructor (cardType) {
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super(`Credit card info is invalid`);
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}
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}
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class UnacceptedCreditCard extends CreditCardError {
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constructor (cardType) {
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super(`Sorry, we cannot process ${cardType} credit cards. Only VISA or MasterCard is accepted.`);
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}
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}
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class ExpiredCreditCard extends CreditCardError {
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constructor (number, month, year) {
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super(`Your credit card (ending ${number.substr(-4)}) expired on ${month}/${year}`);
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}
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}
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/**
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* Verifies the credit card number and (pretend) charges the card.
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*
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* @param {*} request
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* @return transaction_id - a random uuid v4.
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*/
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module.exports = function charge (request) {
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const { amount, credit_card: creditCard } = request;
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const cardNumber = creditCard.credit_card_number;
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const cardInfo = cardValidator(cardNumber);
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const {
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card_type: cardType,
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valid
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} = cardInfo.getCardDetails();
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if (!valid) { throw new InvalidCreditCard(); }
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// Only VISA and mastercard is accepted, other card types (AMEX, dinersclub) will
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// throw UnacceptedCreditCard error.
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if (!(cardType === 'visa' || cardType === 'mastercard')) { throw new UnacceptedCreditCard(cardType); }
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// Also validate expiration is > today.
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const currentMonth = new Date().getMonth() + 1;
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const currentYear = new Date().getFullYear();
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const { credit_card_expiration_year: year, credit_card_expiration_month: month } = creditCard;
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if ((currentYear * 12 + currentMonth) > (year * 12 + month)) { throw new ExpiredCreditCard(cardNumber.replace('-', ''), month, year); }
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logger.info(`Transaction processed: ${cardType} ending ${cardNumber.substr(-4)} \
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Amount: ${amount.currency_code}${amount.units}.${amount.nanos}`);
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return { transaction_id: uuid() };
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};
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