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mod.ts
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mod.ts
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// -------------------------------------------------------------------------
// Main exports
// -------------------------------------------------------------------------
// Http errors
export * from './http-error/HttpError.ts';
export * from './http-error/InternalServerError.ts';
export * from './http-error/BadRequestError.ts';
export * from './http-error/ForbiddenError.ts';
export * from './http-error/NotAcceptableError.ts';
export * from './http-error/MethodNotAllowedError.ts';
export * from './http-error/NotFoundError.ts';
export * from './http-error/UnauthorizedError.ts';
// Renderer
export * from './renderer/content.ts';
export * from './renderer/view.ts';
// Decorators
export * from './decorator/Area.ts';
export * from './decorator/Controller.ts';
export * from './decorator/Get.ts';
export * from './decorator/Post.ts';
export * from './decorator/Patch.ts';
export * from './decorator/Put.ts';
export * from './decorator/Delete.ts';
// Action decorators
export * from './decorator/Cookie.ts';
export * from './decorator/QueryParam.ts';
export * from './decorator/Body.ts';
export * from './decorator/Req.ts';
export * from './decorator/Res.ts';
export * from './decorator/Param.ts';
// Http exports
export { Response, ServerRequest } from './package.ts';
// Standart middlwares
export { CorsBuilder } from './middlewares/cors-builder.ts';
// DI
export * from './injection/index.ts';
// Interfaces
export * from './models/view-render-config.ts';
import { MetadataArgsStorage } from './metadata/metadata.ts';
import { serve, Response, Server } from './package.ts';
import { getAction, notFoundActionResponce } from './route/get-action.ts';
import { getActionParams } from './route/get-action-params.ts';
import { StaticFilesConfig } from './models/static-config.ts';
import { ViewRenderConfig } from './models/view-render-config.ts';
import { CorsBuilder } from './middlewares/cors-builder.ts';
import { Content } from './renderer/content.ts';
import { MetaRoute } from './models/meta-route.ts';
import { registerAreas } from './utils/register-areas.ts';
import { registerControllers } from './utils/register-controllers.ts';
import { getStaticFile } from './utils/get-static-file.ts';
import { MiddlwareTarget } from './models/middlware-target.ts';
// import { getResponseFromActionResult } from './utils/get-response-from-action-result.ts';
import Reader = Deno.Reader;
export type ObjectKeyAny = { [key: string]: any };
const global: ObjectKeyAny = {};
export function getMetadataArgsStorage(): MetadataArgsStorage {
if (!(global as any).routingControllersMetadataArgsStorage)
(global as any).routingControllersMetadataArgsStorage = new MetadataArgsStorage();
return (global as any).routingControllersMetadataArgsStorage;
}
export function getViewRenderConfig(): ViewRenderConfig {
return (global as any).viewRenderConfig;
}
export function getResponseFromActionResult(
value: RenderResult | any,
globalHeaders: Headers,
): ServerResponse {
let responce: ServerResponse;
if ((value as RenderResult).__isRenderResult) {
responce = value;
} else {
responce = Content(value);
}
// merge headers
responce.headers = new Headers([...responce.headers, ...globalHeaders]);
delete (responce as RenderResult).__isRenderResult;
return responce;
}
export interface ServerResponse extends Response {
headers: Headers;
status?: number;
body?: Uint8Array | Reader | string;
trailers?: () => Promise<Headers> | Headers;
immediately?: boolean; // Flag for optimization request, if immediately is "true" server try send respond after any action
}
export interface RenderResult extends ServerResponse {
__isRenderResult: boolean;
}
export interface AppSettings {
areas: Function[];
middlewares?: Function[];
staticConfig?: StaticFilesConfig;
viewRenderConfig?: ViewRenderConfig;
logging?: boolean;
}
export class App {
private classes: ObjectKeyAny[] = [];
private metadata: MetadataArgsStorage;
private routes: MetaRoute[] = [];
private staticConfig: StaticFilesConfig | undefined = undefined;
private viewRenderConfig: ViewRenderConfig | undefined = undefined;
private server: Server | undefined = undefined;
constructor(settings: AppSettings) {
this.metadata = getMetadataArgsStorage();
registerAreas(this.metadata);
registerControllers(this.metadata.controllers, this.classes, (route) => this.routes.push(route), settings.logging);
if (settings) {
this.useStatic(settings.staticConfig);
this.useViewRender(settings.viewRenderConfig);
}
}
async listen(address: string = ':8000'): Promise<Server> {
const server: Server = serve(address);
this.server = server;
console.log(`Server start in ${address}`);
for await (const req of server) {
try {
const res: ServerResponse = {
headers: new Headers(),
};
let result: RenderResult | ServerResponse | undefined;
// Get middlewares in request
const middlewares = this.metadata.middlewares.filter((m) => m.route.test(req.url));
// Resolve every pre middleware
for (const middleware of middlewares) {
await middleware.target.onPreRequest(req, res);
}
if (res.immediately) {
await req.respond(res);
continue;
}
// try getting static file
if (await getStaticFile(req, res, this.staticConfig)) {
await req.respond(res);
continue;
} else {
const action = getAction(this.routes, req.method, req.url);
if (action !== null) {
// Get arguments in this action
const args = await getActionParams(req, res, action);
// Get Action result
result = getResponseFromActionResult(await action.target[action.action](...args), res.headers);
}
}
if (res.immediately) {
await req.respond(result as ServerResponse);
continue;
}
// Resolve every post middleware
for (const middleware of middlewares) {
await middleware.target.onPostRequest(req, res, result);
}
if (res.immediately) {
await req.respond(res);
continue;
}
req.respond(result || notFoundActionResponce);
} catch (error) {
req.respond(Content(error, error.httpCode || 500));
}
}
return server;
}
public close(): void {
if (this.server) {
this.server.close();
} else {
console.warn('Server is not listening');
}
}
public useStatic(config?: StaticFilesConfig): void {
if (config && !this.staticConfig) {
this.staticConfig = config;
}
}
public useViewRender(config?: ViewRenderConfig): void {
if (config && !this.viewRenderConfig) {
this.viewRenderConfig = config;
(global as any).viewRenderConfig = config;
}
}
/**
* Deprecate
*/
public useCors(builder: CorsBuilder): void {
this.metadata.middlewares.push({
type: 'middleware',
target: builder,
route: /\//,
});
}
public use(route: RegExp, middlware: MiddlwareTarget): void {
this.metadata.middlewares.push({
type: 'middleware',
target: middlware,
route,
});
}
}