@marblejs/middleware-cors/dist/middleware.js

A CORS middleware for Marble.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.cors$ = void 0;
const rxjs_1 = require("rxjs");
const operators_1 = require("rxjs/operators");
const utils_1 = require("@marblejs/core/dist/+internal/utils");
const http_responseHandler_1 = require("@marblejs/http/dist/response/http.responseHandler");
const http_1 = require("@marblejs/http");
const function_1 = require("fp-ts/lib/function");
const configurePreflightResponse_1 = require("./configurePreflightResponse");
const configureResponse_1 = require("./configureResponse");
const DEFAULT_OPTIONS = {
    origin: '*',
    methods: ['HEAD', 'GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'],
    withCredentials: false,
    optionsSuccessStatus: http_1.HttpStatus.NO_CONTENT,
};
const isCORSRequest = (req) => !(0, utils_1.isString)(req.headers.origin);
const cors$ = (options = {}) => req$ => {
    options = Object.assign(Object.assign({}, DEFAULT_OPTIONS), options);
    return req$.pipe((0, operators_1.mergeMap)(req => {
        if (isCORSRequest(req))
            return (0, rxjs_1.of)(req);
        if (req.method === 'OPTIONS') {
            (0, configurePreflightResponse_1.configurePreflightResponse)(req, req.response, options);
            return (0, function_1.pipe)((0, rxjs_1.defer)((0, http_responseHandler_1.endRequest)(req.response)), (0, operators_1.mergeMap)(() => rxjs_1.EMPTY));
        }
        (0, configureResponse_1.configureResponse)(req, req.response, options);
        return (0, rxjs_1.of)(req);
    }));
};
exports.cors$ = cors$;