In the Quick Find box, enter cache, and then click Platform Cache. Click Request Trial Capacity and wait for the email notifying you that your Platform Cache trial is active. Salesforce approves trial requests immediately, but it can take a few minutes for you to receive the email.
Full Answer
What is the best practice for platform cache in Salesforce?
A Platform Cache best practice is to ensure that your Apex code handles cache misses by testing for cache requests that return null. You can write this code yourself. Or, you can use the Cache.CacheBuilder interface, which makes it easy to safely store and retrieve values to a session or org cache.
Can a CDN serve cached content from a custom head?
Vijay is glad to know that his content delivery network (CDN) can serve cached content from a custom head directly to the shopper. Serving directly from a PoP server (also called the edge) ensures the fastest content delivery possible. Serving content from the edge prevents unnecessary requests to the back-end application and infrastructure.
How long do static resources stay in the Salesforce cache?
Also, if a previously unrestricted site becomes restricted, it can take up to 45 days for the static resources to expire from the Salesforce cache and any intermediate caches. Public specifies that the static resource data cached on the Salesforce server be shared with other users in your organization for faster load times.
How to access cached values from a Visualforce page?
You can access cached values stored in the session or org cache from a Visualforce page with global variables. A Platform Cache best practice is to ensure that your Apex code handles cache misses by testing for cache requests that return null. You can write this code yourself.
Is CDN cached?
Caching is at the heart of content delivery network (CDN) services. Similar to how browser caching stores files on a hard drive, where they can be more rapidly accessed, a CDN moves your website content to powerful proxy servers optimized for accelerated content distribution.
How is CDN cache content?
When a user requests content from a website using a CDN, the CDN fetches that content from an origin server, and then saves a copy of the content for future requests. Cached content remains in the CDN cache as long as users continue to request it.
How long is CDN cache?
Default caching behaviorMicrosoft: General web deliveryVerizon: General web deliveryHonor originYesYesCDN cache duration2 days7 daysFeb 23, 2022
Does salesforce use CDN?
CDNs are the industry standard for web applications. Salesforce's CDN for Digital Experiences provides faster and more secure content delivery. It also provides access to additional features, such as the declarative Service Not Available page, which displays if there's a regional issue affecting your site.
How do I find the cache of a website?
In Google's search box, type the website or page you're trying to see. Beside the URL, click the down arrow. Select "Cached". You are now viewing the cached page.
Where is cache stored?
Cached data is stored temporarily in an accessible storage media that's local to the cache client and separate from the main storage. Cache is commonly used by the central processing unit (CPU), applications, web browsers and operating systems.
How do I clear my CDN cache?
Solution. To clear the cache for an image, log in to SPS and choose File > Invalidate CDN. When the dialog box appears, paste the full URL strings for the images you want to refresh into the text box. Then, press Submit.
Does CDN cache 404?
By default, CDN caches the 400, 404, 416, 500, 502, and 504 status codes for 3 seconds.
What is the format for the CDN URL to access cached content?
Caching content from Azure websites When you enable CDN access for a website, the Management Portal provides you with a CDN domain name in the following format: http://
What is CDN and CMS?
To simplify it; a CDN is a network of servers that cache data/content, improving load speeds and security. On the other hand, CMS's are pieces of software that allow users to manage and use their content as needed. A CMS may rely on a CDN to allow its users to access content and data quickly but not vice versa.
How do I enable content delivery network?
Enable CDNLogin to the User Portal.Click Sites.Select the production environment name.Click CDN.Check the box to the right of the domain.Save.
What is Salesforce CMS?
Salesforce CMS is a hybrid content management system, where you can curate and share content, manage multiple language versions of your content, and control who creates what. Use Salesforce CMS to create, manage, and deliver content from a central location, and then share that content across multiple channels.
What does "serving content from the edge" mean?
1 True or false: Serving content from the edge prevents unnecessary requests to the back-end application and infrastructure. The application only processes requests that require real-time processing, saving time and resources.
Does Vijay use Redis?
Vijay plans to use the NodeJS SDK and implement a Redis cache that checks for a cached response prior to initiating an API call. This reduces the number of API calls made by the SDK, which improves the performance of Vijay’s application. The SDK has built-in support for caching with Redis and is Salesforce-recommended.
Does Vijay have a cache?
For requests to the application that aren’t cached by the CDN or Apollo server, Vijay can implement an in-memory cache so his application can cache and serve requests that are expensive to calculate.
Site-Level Caching Option
The Cache public Visualforce pages Sites setting controls where pages are cached and for which users. The setting is enabled by default for new sites.
Page-Level Caching Options
Control the caching behavior for your site by setting the boolean cache attribute and integer expires attribute on each Visualforce page.
Caching Behavior for Static Site Resources
Static site resources such as images, style sheets, and scripts are cached based on the Cache Control attribute on the resource. For more information, see Defining Static Resources in Salesforce Help.
Caching Behavior for Attachments
For attachments stored in Experience Cloud sites and Salesforce Sites, the caching behavior varies based on the type of attachment.
Caching Behavior for Visualforce Pages
The location and duration for caching a site page varies based on the site-level setting, Cache public Visualforce pages.
Sample Application Walkthrough
Let's take a look at a sample application that demonstrates how to use the org cache for storing and retrieving currency exchange rates. Exchange rates fluctuate during a day so this sample app doesn’t return real-time rates. The app just provides a daily snapshot of exchange rates.
Best Practices for Cache Management
The ExchangeRates Apex class contains methods that encapsulate the logic of initializing and refreshing the cache. If the data is stale or is not found, the init () method retrieves new exchange rates through an API call, and then stores them in Salesforce. The getCachedRates () method manages the cache internally.
Diagnose Cache Usage
So, you’ve done all this work to implement Platform Cache. How do you know if you’re making the best use of the cache? There are a couple ways you can check performance data. One way is to view the diagnostics information in Setup (available in Salesforce Classic only).
Quiz
1 An API call to fetch data takes the most time, SOQL queries are faster, and fetching data from the cache is the fastest way to get data. When should you use the API or SOQL queries compared to the cache?
Cache.Org Methods
To store a value in the org cache, call the Cache.Org.put () method and supply a key and value. The key name is in the format namespace.partition.key. For example, for namespace ns1, partition partition1, and key orderDate, the fully qualified key name is ns1.partition1.orderDate.
Cache.OrgPartition Methods
If you’re managing cache values in one partition, use the Cache.OrgPartition methods instead. After the partition object is obtained, the process of adding and retrieving cache values is similar to using the Cache.Org methods.
Cache.Session Methods
To store a value in the session cache, call the Cache.Session.put () method and supply a key and value. The key name is in the format namespace.partition.key. For example, for namespace ns1, partition partition1, and key orderDate, the fully qualified key name is ns1.partition1.orderDate.
Cache.SessionPartition Methods
If you’re managing cache values in one partition, use the Cache.SessionPartition methods instead. After the partition object is obtained, the process of adding and retrieving cache values is similar to using the Cache.Session methods.
What is regional edge cache?
A regional edge cache has a larger cache than an individual edge location, so objects remain in the regional edge cache longer. Amazon CloudFront only queries Availability Zones, your origin servers, for content that isn’t cached.
What is Cloudfront regional edge?
Regional edge caches are CloudFront locations that are deployed globally and are close to your viewers. They are located between your origin server and the global edge locations that serve content directly to viewers. A regional edge cache has a larger cache than an individual edge ...
What is Amazon Cloudfront?
Amazon CloudFront is a fast CDN service. It securely delivers data, videos, and applications. It makes application programming interfaces (APIs) accessible to customers around the globe, with low-latency (or time delay) and high-transfer speeds, all within a developer-friendly environment.
Does Amazon Cloudfront forward files?
As soon as the first byte arrives from the origin, Amazon CloudFront begins to forward the files to the user. CloudFront also adds the files to the cache in the edge location and the regional edge cache for the next time someone requests those files.
Learning Objectives
Storefront Implementation Strategies
Content Delivery Network
Why Caching?
API Cache
Distributed Cache
In-Memory Cache
- For requests to the application that aren’t cached by the CDN or Apollo server, Vijay can implement an in-memory cache so his application can cache and serve requests that are expensive to calculate. The NodeJS SDK has built-in support for in-memory caching using key/value pairs. The key contains a unique string, and the value contains the data ass...
Next Steps
Resources