▼ |  | Programming Languages: Application and Interpretation

1 | PLAI Scheme
2 | GC Collector Scheme
3 | GC Mutator Scheme
4 | Web Application Scheme

► | 4 | Web Application Scheme

4.1 | Web Application Exports

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4.1`` Web Application Exports
start

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### 4`` Web Application Scheme

#lang plai/web

The Web Application Scheme language allows you to write server-side Web applications for the PLT Web Server.

For more information about writing Web applications, see: Web Applications in Racket.

When you click on the Run button in DrRacket, your Web application is launched in the Web server.

The application is available at http://localhost:8000/servlets/standalone.rkt.

The Web Application Scheme language will automatically load this URL in your Web browser.

You may use no-web-browser to prevent the browser from being launched and static-files-path to serve additional static files.

#### 4.1`` Web Application Exports

A Web application must define a procedure start:

> > procedure

> > (start initial-request) → response?

> initial-request : request?

The initial request to a Web application is serviced by this procedure.
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