How Can I Dynamically Update Template Partials in Golang?

Dynamically Update Template Partials in Golang

In Golang, the ability to dynamically refresh a portion of a template when a variable is updated is not inherently supported. However, this functionality can be implemented using the following steps:

1. Template Refactoring:

Separate the template that displays the "Addresses" list into its own section using the {{define "name"}} action. Alternatively, you can include it in the main template using {{template "name"}} or define and execute it inline with {{block "name"pipeline}} T1 {{end}}.

2. Handler Modification:

Create a new handler or modify an existing one to exclusively execute and render the "Addresses" template. Send the output directly to the w http.ResponseWriter.

3. Client-Side Modifications:

When the "Addresses" list needs refreshing, issue an AJAX call to the handler created in Step 2.

4. Template Replacement:

In the client-side Javascript, replace the HTML content of the "Addresses" wrapper tag with the response text received from the AJAX call.

Code Example:

var e = document.getElementById("addressees");
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
    if (xhr.readyState == 4 && xhr.status == 200) {
        e.outerHTML = xhr.responseText;
    }
}
xhr.open("GET", "path-to-addresses-render", true);
try {
    xhr.send();
} catch (err) {
    // handle error
}

While the template engine in Go lacks native support for this functionality, these steps provide a customizable solution for dynamically updating template partials.

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