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denotrain

This is a web server library inspired by expressJS written for node. It supports routers, query parameters and url parameters. The library is desired to use with deno.

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Features

Example

Run this example on port 3000 with deno run --allow-net=0.0.0.0 https://deno.land/x/denotrain@v0.5.4/example/routers/example.ts.

Try the following routes:

More examples are in this repository under /examples.

import { Application, Router } from "https://deno.land/x/denotrain@v0.5.4/mod.ts";

// Create a new application (port defaults to 3000, hostname to 0.0.0.0)
const app = new Application();
// Optional: Generate router and hook routes to it
const router = new Router();

// Middleware 
app.use((ctx) => {
  // Add data to the response object and return undefined
  // -> Still passed to other handlers

  // Add cookies to the deno train cookie handler
  ctx.cookies["user.session"] = "qwertz";
  ctx.cookies["a"] = "123";
  ctx.cookies["b"] = "456";
  delete ctx.cookies["user.session"];
  return;
});

// this will only listen on GET requests
router.get("/", (ctx) => {
  // Returning a string, JSON, Reader or Uint8Array automatically sets
  // Content-Type header and no further router will match
  return new Promise((resolve) => resolve("This is the admin interface!")); 
});
router.get("/edit", async (ctx) => {
  return "This is an edit mode!"; 
});

app.get("/", (ctx) => {
  // Returning a json
  return {"hello": "world"};
});

// Hook up the router on "/admin". The routes are now
// available on "/admin" and "/admin/edit"
app.use("/admin", router);

app.get("/:id", (ctx) => {
  // Use url parameters
  return "Hello World with ID: " + ctx.req.params.id
});

// Make a post request; try it with sending json or url-form-encoded
// and a corresponding Content-Type header
app.post("/formtest", async (ctx) => {
  return ctx.req.body;
});

// Run the application on the specified port
await app.run();

App Parameters

The constructor of Application accepts an object with options. All options are optional, and defaults are set for many values.

Documentation

View documentation on the official documentation website.