parrya

using Newtonsoft.Json.Linq;
using Sitecore.Data;
using Sitecore.Data.Items;
using Sitecore.Diagnostics;
using Sitecore.Globalization;
using Sitecore.LayoutService.Configuration;
using System.Collections.Generic;
using System.Linq;

namespace JSSDemo.Feature.Blog.Extensions

parrya

using Newtonsoft.Json.Linq;
using Sitecore.Data;
using Sitecore.Data.Items;
using Sitecore.Diagnostics;
using Sitecore.LayoutService.Configuration;
using System.Collections.Generic;
using System.Linq;

namespace JSSDemo.Feature.Blog.Extensions
{

parrya

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>
    <pipelines>
      <group groupName="layoutService">
        <pipelines>
          <getLayoutServiceContext>
			  <processor type="JSSDemo.Feature.Metadata.PipelineProcessors.ItemContext, JSSDemo.Feature.Metadata" />	
		  </getLayoutServiceContext>
		</pipelines>
      </group>

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using Sitecore.Diagnostics;
using Sitecore.LayoutService.ItemRendering.Pipelines.GetLayoutServiceContext;
using System.Collections.Generic;
using Sitecore;
using Sitecore.Links;

namespace JSSDemo.Feature.Metadata.PipelineProcessors
{
    public class ItemContext : IGetLayoutServiceContextProcessor
    {

parrya

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
 <sitecore>
    <pipelines>
        <group groupName="layoutService">
        <!-- NOTE: This patch will be have a slightly different signature in Headless Services for Sitecore 9.x vs 10. The below works for Headless Services in Sitecore 10 -->
	    <pipelines>
		<renderJsonRendering>
		    <processor type="JSSDemo.Foundation.LayoutService.PipelineProcessors.CustomInitialize, JSSDemo.Foundation.LayoutService" resolve="true"
			 patch:instead="*[@type='Sitecore.LayoutService.Presentation.Pipelines.RenderJsonRendering.Initialize, Sitecore.LayoutService']"/>
		 </renderJsonRendering>

parrya

using System.Collections.Generic;
using Sitecore.Data;
using Sitecore.Data.Items;
using Sitecore.LayoutService.Configuration;
using Sitecore.LayoutService.ItemRendering;
using Sitecore.LayoutService.Presentation.Pipelines.RenderJsonRendering;
using Sitecore.LayoutService.Serialization;
using Sitecore.Mvc.Presentation;
using System.Linq;

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HttpResponseBase response = filterContext.HttpContext.Response;
response.Headers["Access-Control-Allow-Origin"] = header;
if (string.IsNullOrWhiteSpace(response.Headers.Get("Access-Control-Allow-Headers")))
    response.AddHeader("Access-Control-Allow-Headers", "*");
if (string.IsNullOrWhiteSpace(response.Headers.Get("Access-Control-Allow-Credentials")))
    response.AddHeader("Access-Control-Allow-Credentials", "true");
if (string.IsNullOrWhiteSpace(response.Headers.Get("Access-Control-Allow-Credentials")))
    response.AddHeader("Access-Control-Expose-Headers", "ETag");
if (!string.IsNullOrWhiteSpace(response.Headers.Get("Access-Control-Max-Age")))
    return;

parrya

<?xml version="1.0"?>
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:set="http://www.sitecore.net/xmlconfig/set/">
<sitecore>
  <pipelines>
    <mvc.requestBegin>
      <processor type="Mysite.Feature.Redirects.Pipelines.RedirectHandler, Mysite.Feature.Redirects" resolve="true"
          patch:after="*[@type='Sitecore.LayoutService.Mvc.Pipelines.RequestBegin.ContextItemResolver, Sitecore.LayoutService.Mvc']"/>
    </mvc.requestBegin>
  </pipelines>
</sitecore>