@lcap/builder/lib/play/middleware.js

lcap builder utils

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createAPIMiddleware = exports.createAPIHandler = void 0;
const URL = __importStar(require("url"));
const logger_1 = __importDefault(require("../utils/logger"));
function getRequestData(req) {
    return __awaiter(this, void 0, void 0, function* () {
        if (!req.method || ['GET', 'OPTIONS'].includes(req.method)) {
            return {};
        }
        const data = yield new Promise((resolve, reject) => {
            let body = '';
            req.on('data', (chunk) => {
                body += chunk.toString(); // 累计接收到的数据块
            });
            req.on('end', () => {
                try {
                    resolve(body ? JSON.parse(body) : {});
                }
                catch (e) {
                    reject(e);
                }
            });
            req.on('error', (err) => {
                reject(err);
            });
        });
        return data;
    });
}
const createAPIHandler = (url, method, handler) => {
    return {
        url,
        method,
        handler,
    };
};
exports.createAPIHandler = createAPIHandler;
const createAPIMiddleware = (routes, context) => {
    // eslint-disable-next-line consistent-return
    return (req, res, next) => __awaiter(void 0, void 0, void 0, function* () {
        var _a;
        if (!((_a = req.url) === null || _a === void 0 ? void 0 : _a.startsWith('/api'))) {
            return next();
        }
        const { pathname, query } = URL.parse(req.url, true);
        const route = routes.find((r) => r.url === pathname && r.method === req.method);
        if (!route) {
            return next();
        }
        res.setHeader('content-type', 'application/json;charset=UTF-8');
        try {
            const data = yield getRequestData(req);
            const result = yield route.handler({
                url: req.url,
                method: req.method,
                query: query,
                data,
                context,
            });
            res.write(JSON.stringify({
                code: 200,
                data: result,
            }));
        }
        catch (e) {
            logger_1.default.error(e);
            res.write(JSON.stringify({
                code: e.code || 500,
                message: e.message || 'unknow error',
            }));
        }
        res.end();
    });
};
exports.createAPIMiddleware = createAPIMiddleware;