How to add Purgely in Wordpress

A plugin to manage Fastly caching behavior and purging. Wordpress Tutorial

Noted That:

To install correctly this purgely.zip .
Fisrt Download the purgely.zip to your computer
Extract/Open purgely.zip to Your Computer.
Then, Find readme.txt file inside purgely.zip and Open readme.txt .
Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
Then, Follow the Tips Below.

Start the Tips:

Step-1 : Download " purgely.zip " to Your Local Computer.

Step-2 : Then, Login to your " yourdomain.com/wp-admin " Dashboard.

Step-3 : Then, Click on " Plugins " + " Add New " from left Side Menu of Dashboard.

Step-4 : Now, Click on " Upload Plugin " button.

Step-5 : Now, Browse " purgely.zip " Downloaded plugin from your computer, Where you downloaded " purgely.zip " According to Step – 1 Above then, click on " Install Now "

Step-6 : Now, Click on " Active Plugin "

Step-7 : Then, See left Side Menu. " Purgely " folder is added on left Side Menu. Now, Click on " Purgely " folder.

Noted that: If you do not see " Purgely " folder on left Side Menu then, see at left Side Menu " Settings " or " Tools ".

Step-8 : Now you configure yourself oR Watch video tutorial below about Purgely Configurations and Settings or How to work " Purgely " in your WordPress site.

After Activated Plugin According to Step-6 then,

Go to " Plugins " + " Installed Plugin " from Wordpress Admin Panel Leftside Menu.
or Direct go to: https://yourdomain/wp-admin/plugins.php
Then, Find " Purgely " Activated Plugin from Plugin List.
Then, Click on " Settings " from Plugin that is Purgely
Now, Edit/Add/Config the setting and Click on " Save Changes " button,

Guide

Guide
Manual installation Upload the plugin directory to `/wp-content/plugins/` Activate the plugin through the ‘Plugins’ menu in WordPress WP CLI installation Run `wp plugin install --activate purgely` Configuration Purgely provides a number of constants that can be used to control the behavior of the plugin and Fastly’s cache. Users who wish to change these values should define the constants in `wp-config.php` . After installing, you should define `PURGELY_FASTLY_KEY` and `PURGELY_FASTLY_SERVICE_ID` in `wp-config.php` . The plugin will work without them; however, you will not be able to purge by surrogate key or purge all without configuring these options. To define them copy the following code to your `wp-config.php` file, update the key to use your key, and the service ID to match the fastly service you’re using: ` define( ‘PURGELY_FASTLY_KEY’, ’39c4820390d8f050giweda50268c7583? ); define( ‘PURGELY_FASTLY_SERVICE_ID’, ‘abcdefghijklmn1234567890’ ); ` Configuring other constants is similarly done by defining the constant in `wp-config.php` . All constants are explained below. PURGELY_API_ENDPOINT Defines the API endpoint for Fastly. This should not usually need to be changed, but is added in the event that Fastly decides to use a different API endpoint, or if there is a need for a user to have a special endpoint. default: (string) ” PURGELY_ALLOW_PURGE_ALL Determines whether or not the plugin can issue a purge all request. Purge all can have dire consequences for a website. As such, this behavior is disabled by default. If can be turned on by setting this value to `true` . default: (bool) false PURGELY_ENABLE_STALE_WHILE_REVALIDATE Determines whether or not the plugin sets the `stale-while-revalidate` directive for the `Cache-Control` header. Setting this value to `false` will turn off the `stale-while-revalidate` behavior. Note that you can manually control this behavior via the functions exposed in the plugin regardless of this configuration option. This option only controls the default plugin behavior. default: (bool) true PURGELY_STALE_WHILE_REVALIDATE_TTL Sets the TTL for the `stale-while-revalidate` directive in seconds. The value instructs Fastly to continue serving stale content while new content is generated for the duration of the value that is set. default: (int) 86400 PURGELY_ENABLE_STALE_IF_ERROR Determines whether or not the plugin sets the `stale-if-error` directive for the `Cache-Control` header. Setting this value to `false` will turn off the `stale-if-error` behavior. Note that you can manually control this behavior via the functions exposed in the plugin regardless of this configuration option. This option only controls the default plugin behavior. default: (bool) true PURGELY_STALE_IF_ERROR_TTL Sets the TTL for the `stale-if-error` directive in seconds. The value instructs Fastly to continue serving stale content while the origin site is serving an error for the duration of the value that is set. default: (int) 86400 PURGELY_SURROGATE_CONTROL_TTL Sets the TTL for the `Surrogate-Control` header in seconds. This value is the default TTL for all pages on your site, unless it is cached within the app. Changing this value changes the value for the whole site. default: (int) 300

Manual installation

Upload the plugin directory to /wp-content/plugins/
Activate the plugin through the ‘Plugins’ menu in WordPress

WP CLI installation

Run wp plugin install --activate purgely

Configuration

Purgely provides a number of constants that can be used to control the behavior of the plugin and Fastly’s cache. Users
who wish to change these values should define the constants in wp-config.php .

After installing, you should define PURGELY_FASTLY_KEY and PURGELY_FASTLY_SERVICE_ID in wp-config.php . The plugin will work without them; however, you will not be able to purge by surrogate key or purge all without configuring these options. To define them copy the following code to your wp-config.php file, update the key to use your key, and the service ID to match the fastly service you’re using:

define( ‘PURGELY_FASTLY_KEY’, ’39c4820390d8f050giweda50268c7583? );
define( ‘PURGELY_FASTLY_SERVICE_ID’, ‘abcdefghijklmn1234567890’ );
`

Configuring other constants is similarly done by defining the constant in wp-config.php . All constants are explained
below.

PURGELY_API_ENDPOINT

Defines the API endpoint for Fastly. This should not usually need to be changed, but is added in the event that Fastly
decides to use a different API endpoint, or if there is a need for a user to have a special endpoint.

default: (string) ”

PURGELY_ALLOW_PURGE_ALL

Determines whether or not the plugin can issue a purge all request. Purge all can have dire consequences for a website.
As such, this behavior is disabled by default. If can be turned on by setting this value to true .

default: (bool) false

PURGELY_ENABLE_STALE_WHILE_REVALIDATE

Determines whether or not the plugin sets the stale-while-revalidate directive for the Cache-Control header. Setting
this value to false will turn off the stale-while-revalidate behavior. Note that you can manually control this
behavior via the functions exposed in the plugin regardless of this configuration option. This option only controls the
default plugin behavior.

default: (bool) true

PURGELY_STALE_WHILE_REVALIDATE_TTL

Sets the TTL for the stale-while-revalidate directive in seconds. The value instructs Fastly to continue serving stale
content while new content is generated for the duration of the value that is set.

default: (int) 86400

PURGELY_ENABLE_STALE_IF_ERROR

Determines whether or not the plugin sets the stale-if-error directive for the Cache-Control header. Setting
this value to false will turn off the stale-if-error behavior. Note that you can manually control this
behavior via the functions exposed in the plugin regardless of this configuration option. This option only controls the
default plugin behavior.

default: (bool) true

PURGELY_STALE_IF_ERROR_TTL

Sets the TTL for the stale-if-error directive in seconds. The value instructs Fastly to continue serving stale
content while the origin site is serving an error for the duration of the value that is set.

default: (int) 86400

PURGELY_SURROGATE_CONTROL_TTL

Sets the TTL for the Surrogate-Control header in seconds. This value is the default TTL for all pages on your site,
unless it is cached within the app. Changing this value changes the value for the whole site.

default: (int) 300

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