Responses

Introduction

Responses are an essential aspect of web development, serving as the server's means of communicating with client requests. In frameworks like Vania, similar to other modern web frameworks, responses play a vital role in delivering content, status codes, and headers back to the client.

In Vania, crafting responses is straightforward and versatile, allowing developers to tailor the data and presentation to suit their application's requirements. Whether it involves returning JSON data, rendering HTML content, or serving files for download, Vania offers a comprehensive set of tools for handling various response scenarios seamlessly.

A deep understanding of response construction and manipulation empowers developers to build dynamic and interactive web applications. By effectively managing responses, developers can ensure efficient communication between the server and client, thereby delivering a smooth and satisfactory user experience.

All routes and controllers should return a Response class to be sent back to the users. Vania provides several ways to return responses:

The json method automatically sets the Content-Type header to application/json and converts the given list/map to JSON:
```
Route.get('/', (Request request) {
    return Response.json({});
});
```
The html method automatically sets the Content-Type header to text/html; charset=utf-8 and converts the given string/HTML tag to HTML:
```
Route.get('/', (Request request) {
    return Response.html('<h1>Html Tag</h1>');
});
```
The download method generates a response that forces the user to download the file at the given path. It accepts the absolute path to the file as its argument:
```
Route.get('/', (Request request) {
    return Response.download('filename',bytes);
});
```
The file method displays a file, such as an image or PDF, directly in the user's browser instead of initiating a download. It accepts the absolute path to the file as its argument:
```
Route.get('/', (Request request) {
    return Response.file('filename',bytes);
});
```

Introduction​

Introduction