Mustache

In this section we briefly show an example on how to use module Mustache from the Standard Library.

• The documentation related to mustache can be found at this link.
• The full code of this tutorial can be found here

Importing modules

The module to import is the following one:

from mustache import Mustache

Loading a template

In this tutorial, we show how to apply the following mustahce template to a set of data:

{
  "applicationName": "{{applicationName}}",
  "version": "{{version}}",
  "description": "{{description}}",
  "author": {
    "name": "{{author.name}}",
    "email": "{{author.email}}"
  },
  "configuration": {
    "environment": "{{configuration.environment}}", 
    "port": {{configuration.port}},
    "database": {
      "host": "{{configuration.database.host}}",
      "port": {{configuration.database.port}},
      "name": "{{configuration.database.name}}",
      "user": "{{configuration.database.user}}",
      "password": "{{configuration.database.password}}"
    }
  },
  "features": [
    {{#features}}
    {
      "name": "{{name}}",
      "enabled": {{enabled}}
    }{{^last}},{{/last}}
    {{/features}}
  ]
}

Loading it from a file is very simple, just use module File

readFile@File( { filename = "template.mustache" } )( template )

The template is now store within variable template as a string.

Rendering a mustache template

Just invoke operation render of module Mustache for getting the final document

render_req << {
    template = template
    data << {
        applicationName = "Task Manager"
        version = "1.0.0"
        description = "A simple application for managing tasks and projects."
        author << {
            name = "Jane Doe"
            email = "jane.doe@example.com"
        }
        configuration << {
            environment = "production"
            port = 8080
            database << {
                host = "localhost"
                port = 5432
                name = "task_manager_db"
                user = "admin"
                password = "securepassword"
            }
        }
        features[ 0 ] << {
            name = "Task Management"
            enabled = true
        }
        features[ 1 ] << {
            name = "Notifications"
            enabled = false
        }
        features[ 2 ] << {
            name = "Reporting"
            enabled = true
            last = true 
        }
    }
}
render@Mustache( render_req )( rendered_document )

Note that operation render requires two varibles:

• template that contains the template as a string
• data that containes the set of data to use as a replacement in the template