This is Donatello, a dynamic web service written in Jolie.
You can use Donatello as is, to host dynamic content in the Donatello Templating language or simply as a host for static pages.
Donatello uses plain HTTP for serving content. To add encryption (HTTPS), we recommend combining it with a reverse proxy (for example, we like linuxserver/letsencrypt).
For this part, we assume that you have Jolie installed on you machine.
To run Donatello, you will have to declare where the content of your web server is stored. This can be done in two ways:
- Pass the content directory as an argument. For example, if your content is in
/var/www
, then you should run the commandjolie launcher.ol /var/www
. - Pass the content directory by using the environment variable
DONATELLO_WWW
. In this case, you just need to invokejolie launcher.ol
.
...
${ x = 123}
${ y = x + 123}
...
This will not print anything to the page, but the variables will be available to print and/or manipulate.
...
${ x = 123} // This is not for printing, but just to assign a variable for us to print.
{{ x }}
...
${ use json data/user as user }
<h1>Welcome, {{ user.name }}</h1>
From the syntax, it is assumed that there is a json file at the location; data/, naming user.json.
${ use service time }
...
${getCurrentDateTime@Time()(time)}
<p>The time is: {{ time }}</p>
...
In this case, the service is a built-in Jolie service, but it could be any Jolie service.
${ include layout/header.html }
${ include menu.ol }
${param name:string}
<h1>Welcome, {{ name }}</h1>
${ use json data/user as user }
...
${ include menu.ol name=user.name }
...
${ use json data/user as user }
...
${ if user.age > 10 }
<h1>Welcome, {{ user.name }}</h1>
${ else }
<h1>Bye, {{ user.name }}</h1>
${ endif }
...
${use json data/users as data}
...
<h1>List of all users...</h1>
${ for user in data.users }
<p>Hi, {{ user.name }} your age is {{ user.age }}</p>
${ endfor }
...