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Example Deno Static Server
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| import { | |
| green, | |
| cyan, | |
| bold, | |
| yellow, | |
| red | |
| } from "https://deno.land/[email protected]/fmt/colors.ts"; | |
| import { | |
| Application, | |
| HttpError, | |
| send, | |
| Status | |
| } from "https://deno.land/x/oak/mod.ts"; | |
| const app = new Application(); | |
| // Error handler middleware | |
| app.use(async (context, next) => { | |
| try { | |
| await next(); | |
| } catch (e) { | |
| if (e instanceof HttpError) { | |
| context.response.status = e.status as any; | |
| if (e.expose) { | |
| context.response.body = `<!DOCTYPE html> | |
| <html> | |
| <body> | |
| <h1>${e.status} - ${e.message}</h1> | |
| </body> | |
| </html>`; | |
| } else { | |
| context.response.body = `<!DOCTYPE html> | |
| <html> | |
| <body> | |
| <h1>${e.status} - ${Status[e.status]}</h1> | |
| </body> | |
| </html>`; | |
| } | |
| } else if (e instanceof Error) { | |
| context.response.status = 500; | |
| context.response.body = `<!DOCTYPE html> | |
| <html> | |
| <body> | |
| <h1>500 - Internal Server Error</h1> | |
| </body> | |
| </html>`; | |
| console.log("Unhandled Error:", red(bold(e.message))); | |
| console.log(e.stack); | |
| } | |
| } | |
| }); | |
| // Logger | |
| app.use(async (context, next) => { | |
| await next(); | |
| const rt = context.response.headers.get("X-Response-Time"); | |
| console.log( | |
| `${green(context.request.method)} ${cyan(context.request.url)} - ${bold( | |
| String(rt) | |
| )}` | |
| ); | |
| }); | |
| // Response Time | |
| app.use(async (context, next) => { | |
| const start = Date.now(); | |
| await next(); | |
| const ms = Date.now() - start; | |
| context.response.headers.set("X-Response-Time", `${ms}ms`); | |
| }); | |
| // Send static content | |
| app.use(async context => { | |
| await send(context, context.request.path, { | |
| root: `${Deno.cwd()}/static`, | |
| index: "index.html" | |
| }); | |
| }); | |
| const address = "127.0.0.1:8000"; | |
| console.log(bold("Start listening on ") + yellow(address)); | |
| await app.listen(address); |
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