75 lines
2.2 KiB
TypeScript
75 lines
2.2 KiB
TypeScript
import * as bodyParser from "body-parser";
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import * as cors from 'cors';
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import * as express from "express";
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import { initialize } from "express-openapi";
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import { assignIn } from 'lodash';
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import { Logger } from 'winston';
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import { SocketBackend } from "../lib/communication/socketBackend";
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import { getLinkedDispatcher } from "../lib/dispatcher/getLinkedDispatcher";
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import { apiDoc } from '../specs/apiDoc';
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import { getBackendAccesors } from './getBackendAccessors';
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/**
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* Function to start a Open-API-Server
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* @param options Options for the Server
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*/
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export function startBackend(options: {
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port?: number,
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backendPort?: number,
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basePath?: string,
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logger?: Logger,
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} = {}) {
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const app: express.Application = (express as any)();
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// Define the Default Options
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const defaults = {
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port: 3001,
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backendPort: 3002,
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basePath: '/api'
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}
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// Mix the Options.
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const opts = assignIn(defaults, options);
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app.use(bodyParser.json());
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app.use(cors());
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initialize({
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apiDoc: apiDoc('Backend API', '1.0.0', opts.basePath),
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app,
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paths: './dist/open-api',
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routesGlob: '**/*.{ts,js}',
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routesIndexFileRegExp: /(?:index)?\.[tj]s$/,
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dependencies: {
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_dispatcher: getLinkedDispatcher(
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new SocketBackend(opts.backendPort)
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)
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},
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});
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app.use(((err, req, res, next) => {
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res.status(err.status).json(err);
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}) as express.ErrorRequestHandler);
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const server = app.listen(opts.port);
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const accessor = getBackendAccesors(app);
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if (options.logger) {
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options.logger.info('Server Running on http://localhost:' + opts.port.toString() + opts.basePath);
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options.logger.info('API Documentation available on http://localhost:' + opts.port.toString() + opts.basePath + '/api-docs');
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options.logger.debug('Checkout http://localhost:3000/docs')
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}
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return {
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app,
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// Accessor for the Server
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accessor,
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// Function to extract the Definitions.
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definitionUri: opts.basePath + '/api-docs',
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// Function to Close the Server
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close() {
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server.close();
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}
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}
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}
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