Templates

Templates are useful for generating data-driven textual output. The text/template package can be used in the following contexts:

• Configuration files: You can accept templates in configuration files, such as the following example that uses an env map variable to create environment-sensitive configurations

  logfile: {{.env.logDir}}/log.json

• Reporting: Use templates to generate output for command-line applications and reports
• Web applications: The html/template package provides HTML-safe templating functionality for template-based HTML generation to build web applications

Value substitution

The main use of templates is inserting data elements into structured text. This section describes how you can insert values computed in a program into a template.

How to do it...

Use the {{.name}} syntax to substitute a value in a template.

The following code segment executes a template using different inputs:

package main
import (
    ...