Category: sitecore

Sitecore Headless Next.js – Forwarding custom query parameters to Layout Service

A few weeks ago the following question came up by Robbert Hock on Sitecore Chat:

Contents Resolver question: with Context.HttpContext.Request.Params["item"] I can read the url of the item. But when for example we have a url like /news?page=1, how would I read the page querystring prop in a contents resolver? Somehow I can’t find it, since the request is like /sitecore/api/layout/render/default

Robbert Hock

This is a fair question, if you would like to process custom parameters in your custom Contents Resolver.

Continue reading “Sitecore Headless Next.js – Forwarding custom query parameters to Layout Service” →

Sitecore Headless Next.js – Runtime rewrites

When you create a Sitecore Next.js project you will notice there is a configuration file generated, called next.config.js. This config holds different Sitecore related config entries, but in this post I would like to focus on the async rewrites() method. This is a Next.js feature, to handle rewrites in the app. Rewrites can be useful for several things. By default Sitecore uses rewrites to proxy the media and some Sitecore API requests.

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Sitecore Headless Next.js – Generic component based external API response processing

Since Sitecore Headless and Composable DXP jumped in to our life, designing and architecting Sitecore solutions are changing. The integration layer is moving to the frontend layer and stays decoupled from Sitecore.

On the current project we are working on, almost all Sitecore components have to call different API routes to enrich the Sitecore component with data coming from these external sources. As it’s a requirement to almost all of our components, it makes sense to design a generic solution for serving the merged data to the frontend. I want to thank Richárd Palkó, we designed and implemented this generic solution together and thank you for guiding me on getting familiar with TypeScript, Next.js and React 🙏.

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Sitecore Headless – Wildcard item with datasource content resolver

On one of my first Sitecore Headless project I got a requirement to implement a dynamic URL resolving to display product data from a different root of the Sitecore tree. If it would have been a traditional Sitecore solution I could implement a custom item resolver but in the headless world we need a different kind of mindset to solve problems like this.

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Using translation API with Sitecore ASP .NET Core Rendering Host

Currently there is no client side API implementation done of the Sitecore dictionary translation API in the official Sitecore ASP .NET Core SDK, therefore I decided to implement a PoC. After googling a bit I found, Sitecore already provides an API endpoint to resolve dictionary items and it’s already implemented in the JSS clients. So based on this documentation I found the API endpoint on my local Sitecore CM instance, which is

/sitecore/api/jss/dictionary/<site>/<language>/?sc_apikey=<apikey>

The response of this endpoint is the following:

{
"lang": "en",
"app": "Discovering.Sitecore101",
"phrases": {
"label1": "label 1",
"label2": "label 2"
}
}
view raw dictionary-raw.json hosted with ❤ by GitHub
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Sitecore Publishing Web Hook – Sitecore Rendering Host output caching PoC update

Sitecore 10.1 released a few weeks ago and one of the new features is the Publishing Web Hook. The main reason why this is introduced is to able to easily update JAMstack apps on publish. Official step-by-step guide for Vercel deployment can be found on the official Sitecore JSS documentation site, here.

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Using Sitecore configuration API from Service Configurator

OR when you are facing with the following exception:

[LockRecursionException: A read lock may not be acquired with the write lock held in this mode.]
System.Threading.ReaderWriterLockSlim.TryEnterReadLockCore(TimeoutTracker timeout) +1347
System.Threading.ReaderWriterLockSlim.TryEnterReadLock(TimeoutTracker timeout) +44
Sitecore.DependencyInjection.ServiceLocator.get_ServiceProvider() +176
Sitecore.Configuration.<>c.<.cctor>b__360_0() +9
System.Lazy`1.CreateValue() +734
System.Lazy`1.LazyInitValue() +189
Sitecore.Configuration.Settings.GetSetting(String name) +48
view raw LockRecursionException.log hosted with ❤ by GitHub
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Discovering Sitecore ASP .NET Core SDK – Datasource Item Children Resolver

TL;DR

namespace Discovering.Sitecore10.Models
{
public class ChildrenBlockModel
{
[SitecoreComponentField(Name = "items")]
public IEnumerable<ItemLinkField<ContentBlockModel>> Children { get; set; }
}
public class ContentBlockModel
{
[SitecoreComponentField]
public TextField Title { get; set; }
}
}
view raw ChildrenBlockModel.cs hosted with ❤ by GitHub

Longer interpretation

I wanted to play around a bit with different Contents Resolvers. The default resolvers are the following under the /sitecore/system/Modules/Layout Service/Rendering Contents Resolvers item:

  • Context Item Children Resolver
  • Context Item Resolver
  • Datasource Item Children Resolver
  • Datasource Resolver
  • Folder Filter Resolver
  • Sitecore Forms Resolver
Continue reading “Discovering Sitecore ASP .NET Core SDK – Datasource Item Children Resolver” →