nest-koa-adapter
Version:
Koa HTTP adapter for Nest.js
232 lines • 10.2 kB
JavaScript
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Object.defineProperty(exports, "__esModule", { value: true });
exports.KoaAdapter = void 0;
const core_1 = require("@nestjs/core");
const common_1 = require("@nestjs/common");
const koa_1 = __importDefault(require("koa"));
const koa_router_1 = __importDefault(require("koa-router"));
const koa_bodyparser_1 = __importDefault(require("koa-bodyparser"));
const http = __importStar(require("http"));
const https = __importStar(require("https"));
const NestKoaMiddleware_1 = require("./NestKoaMiddleware");
const load_package_util_1 = require("@nestjs/common/utils/load-package.util");
const KoaCorsOptions_1 = require("./KoaCorsOptions");
const KoaReply_1 = require("./KoaReply");
class KoaAdapter extends core_1.AbstractHttpAdapter {
constructor(instance = new koa_1.default()) {
super(instance);
}
getRouter() {
if (!this.router) {
this.router = new koa_router_1.default();
this.getInstance().use(this.router.routes());
}
return this.router;
}
delete(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().delete(routePath, this.createRouteHandler(routeHandler));
}
get(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().get(routePath, this.createRouteHandler(routeHandler));
}
head(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().head(routePath, this.createRouteHandler(routeHandler));
}
options(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().options(routePath, this.createRouteHandler(routeHandler));
}
patch(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().patch(routePath, this.createRouteHandler(routeHandler));
}
post(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().post(routePath, this.createRouteHandler(routeHandler));
}
put(pathOrHandler, handler) {
const [routePath, routeHandler] = this.getRouteAndHandler(pathOrHandler, handler);
return this.getRouter().put(routePath, this.createRouteHandler(routeHandler));
}
createRouteHandler(routeHandler) {
return (ctx, next) => {
ctx.respond = false;
routeHandler(ctx.request, ctx.response, next);
};
}
getRouteAndHandler(pathOrHandler, handler) {
let path = pathOrHandler;
if (typeof pathOrHandler === 'function') {
handler = pathOrHandler;
path = '';
}
return [path, handler];
}
close() {
return new Promise((resolve) => this.httpServer.close(() => resolve()));
}
getType() {
return 'koa';
}
initHttpServer(options) {
if (options === null || options === void 0 ? void 0 : options.httpsOptions) {
this.httpServer = https.createServer(options.httpsOptions, this.getInstance().callback());
return;
}
this.httpServer = http.createServer(this.getInstance().callback());
}
useStaticAssets(path, options) {
const serveStaticMiddleware = (0, load_package_util_1.loadPackage)('koa-static', 'KoaAdapter.useStaticAssets()');
this.getInstance().use(serveStaticMiddleware(path, options));
}
setViewEngine(options) {
const viewsMiddleware = (0, load_package_util_1.loadPackage)('@ladjs/koa-views', 'KoaAdapter.setViewEngine()');
const _a = options, { viewsDir } = _a, viewsOptions = __rest(_a, ["viewsDir"]);
this.getInstance().use(viewsMiddleware(viewsDir, Object.assign({ autoRender: false }, viewsOptions)));
}
getRequestHostname(request) {
return request.hostname;
}
getRequestMethod(request) {
return request.method;
}
getRequestUrl(request) {
return request.url;
}
status(response, statusCode) {
response.status = statusCode;
}
reply(response, body, statusCode) {
return (0, KoaReply_1.koaReply)(response, body, statusCode);
}
render(response, view, options) {
return __awaiter(this, void 0, void 0, function* () {
const body = yield response.ctx.render(view, options);
this.reply(response, body);
});
}
redirect(response, statusCode, url) {
response.set('Location', url);
return (0, KoaReply_1.koaReply)(response, null, statusCode);
}
setErrorHandler(handler, prefix) {
this.getInstance().on('error', handler);
}
setNotFoundHandler(handler, prefix) {
this.getInstance().use((0, NestKoaMiddleware_1.nestToKoaMiddleware)(handler));
}
setHeader(response, name, value) {
response.set(name, value);
}
registerParserMiddleware(prefix) {
this.getRouter().use((0, koa_bodyparser_1.default)(), (ctx, next) => __awaiter(this, void 0, void 0, function* () {
// This is because nest expects params in request object so we need to extend it
Object.assign(ctx.request, { params: ctx.params });
yield next();
}));
}
enableCors(options) {
const corsMiddleware = (0, load_package_util_1.loadPackage)('@koa/cors', 'KoaAdapter.enableCors()');
KoaCorsOptions_1.KoaCorsOptions.validateNestOptions(options);
const koaCorsOptions = new KoaCorsOptions_1.KoaCorsOptions(options);
if (koaCorsOptions) {
koaCorsOptions.handleOptionsSuccessStatus(this.getInstance(), options);
}
this.getInstance().use(corsMiddleware(koaCorsOptions));
}
createMiddlewareFactory(requestMethod) {
// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
return (path, middleware) => {
const router = this.getRouter();
const routeMethodsMap = {
[common_1.RequestMethod.ALL]: router.all,
[common_1.RequestMethod.DELETE]: router.delete,
[common_1.RequestMethod.GET]: router.get,
[common_1.RequestMethod.HEAD]: router.head,
[common_1.RequestMethod.OPTIONS]: router.options,
[common_1.RequestMethod.PATCH]: router.patch,
[common_1.RequestMethod.POST]: router.post,
[common_1.RequestMethod.PUT]: router.put,
[common_1.RequestMethod.SEARCH]: router.all,
};
const routeMethod = (routeMethodsMap[requestMethod] || routeMethodsMap[common_1.RequestMethod.GET]).bind(this.router);
return routeMethod(path, (ctx, next) => middleware(ctx.request, ctx.response, next));
};
}
applyVersionFilter(handler, version, versioningOptions) {
throw new Error('Versioning not yet supported in Koa');
}
end(response, message) {
response.res.end(message);
}
isHeadersSent(response) {
return response.headerSent;
}
appendHeader(response, name, value) {
response.set(name, value);
}
getHeader(response, name) {
return response.get(name);
}
}
exports.KoaAdapter = KoaAdapter;
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