124 lines
3.3 KiB
TypeScript
124 lines
3.3 KiB
TypeScript
import { Service, Inject } from 'typedi';
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import { Router, Request, Response, NextFunction } from 'express';
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import { query, oneOf } from 'express-validator';
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import asyncMiddleware from '@/api/middleware/asyncMiddleware';
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import BaseController from './BaseController';
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import { ServiceError } from '@/exceptions';
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import { EchangeRateErrors } from '@/lib/ExchangeRate/types';
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import { ExchangeRateApplication } from '@/services/ExchangeRates/ExchangeRateApplication';
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@Service()
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export default class ExchangeRatesController extends BaseController {
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@Inject()
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private exchangeRatesApp: ExchangeRateApplication;
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/**
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* Constructor method.
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*/
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router() {
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const router = Router();
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router.get(
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'/latest',
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[
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oneOf([
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query('to_currency').exists().isString().isISO4217(),
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query('from_currency').exists().isString().isISO4217(),
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]),
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],
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this.validationResult,
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asyncMiddleware(this.latestExchangeRate.bind(this)),
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this.handleServiceError
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);
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return router;
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}
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/**
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* Retrieve exchange rates.
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* @param {Request} req
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* @param {Response} res
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* @param {NextFunction} next
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*/
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private async latestExchangeRate(
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req: Request,
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res: Response,
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next: NextFunction
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) {
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const { tenantId } = req;
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const exchangeRateQuery = this.matchedQueryData(req);
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try {
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const exchangeRate = await this.exchangeRatesApp.latest(
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tenantId,
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exchangeRateQuery
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);
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return res.status(200).send(exchangeRate);
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} catch (error) {
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next(error);
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}
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}
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/**
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* Handle service errors.
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* @param {Error} error
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* @param {Request} req
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* @param {Response} res
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* @param {NextFunction} next
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*/
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private handleServiceError(
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error: Error,
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req: Request,
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res: Response,
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next: NextFunction
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) {
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if (error instanceof ServiceError) {
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if (EchangeRateErrors.EX_RATE_INVALID_BASE_CURRENCY === error.errorType) {
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return res.status(400).send({
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errors: [
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{
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type: EchangeRateErrors.EX_RATE_INVALID_BASE_CURRENCY,
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code: 100,
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message: 'The given base currency is invalid.',
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},
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],
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});
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} else if (
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EchangeRateErrors.EX_RATE_SERVICE_NOT_ALLOWED === error.errorType
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) {
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return res.status(400).send({
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errors: [
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{
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type: EchangeRateErrors.EX_RATE_SERVICE_NOT_ALLOWED,
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code: 200,
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message: 'The service is not allowed',
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},
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],
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});
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} else if (
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EchangeRateErrors.EX_RATE_SERVICE_API_KEY_REQUIRED === error.errorType
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) {
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return res.status(400).send({
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errors: [
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{
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type: EchangeRateErrors.EX_RATE_SERVICE_API_KEY_REQUIRED,
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code: 300,
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message: 'The API key is required',
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},
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],
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});
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} else if (EchangeRateErrors.EX_RATE_LIMIT_EXCEEDED === error.errorType) {
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return res.status(400).send({
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errors: [
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{
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type: EchangeRateErrors.EX_RATE_LIMIT_EXCEEDED,
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code: 400,
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message: 'The API rate limit has been exceeded',
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},
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],
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});
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}
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}
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next(error);
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}
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}
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