Platform Events Apex Handler (Object Type)

Considering you've already gone through Platform Events﻿ section of the documentation, this article will walk you through how to write a trigger on the cldfs__CloudFilesEvent__c object and handle custom logic based on the event type.

If you've set the setting to Platform Events, go through this article - Platform Events﻿ 
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Basic Example:
Note: Salesforce does not allow callouts from the trigger context. Therefore, please make the callout in an asynchronous context. In the example below, we used a future method to make the callout.

Salesforce Article Link

Trigger Example:
Apex
trigger CloudFilesObjectTrigger on cldfs__CloudFilesEvent__c (after insert) {
    CloudFilesEventTriggerHandler.execute();
}
trigger CloudFilesObjectTrigger on cldfs__CloudFilesEvent__c (after insert) {
    CloudFilesEventTriggerHandler.execute();
}
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Trigger Handler Example:
Apex
public with sharing class CloudFilesEventTriggerHandler {

    public static void execute() {
        List<Id> recordIds = new List<Id>();
        for(cldfs__CloudFilesEvent__c obj : (List<cldfs__CloudFilesEvent__c>)Trigger.new){
            recordIds.add(obj.Id);
        }
        processCloudFilesEvents(recordIds);
    }

    @future(callout=true)
    public static void processCloudFilesEvents(List<Id> recordIds) {

        List<cldfs__CloudFilesEvent__c> records = [SELECT Id, Name, cldfs__Data__c, cldfs__Object_Type__c, cldfs__Request_Id__c, cldfs__Type__c, CreatedDate FROM cldfs__CloudFilesEvent__c WHERE Id IN :recordIds];
        if (records.size() == 0) return;
         //output from GetEventDetails
         List<cldfs.Event> returnedEvents = new List<cldfs.Event>();

         //Inputs for GetEventDetails
         List<cldfs.GetEventDetails.FlowInput> getEventDetailInputs = new List<cldfs.GetEventDetails.FlowInput>();
 
         //Input mapping for GetEventDetails
         for(cldfs__CloudFilesEvent__c record : records){
             cldfs.GetEventDetails.FlowInput singleInput = new cldfs.GetEventDetails.FlowInput();
             singleInput.eventCustomObj = record;
             getEventDetailInputs.add(singleInput);
         }
 
         //Get the event details
         returnedEvents = cldfs.GetEventDetails.GetEventDetails(getEventDetailInputs);
 
         //Process the returned events
         for(cldfs.Event e : returnedEvents){
             if(e.Type == 'document-processed'){
                 System.debug('Context ==> '+e.DocumentProcessed.Context);
                 System.debug('Processed Document Id ==> '+e.DocumentProcessed.ProcessedDocumentId);
                 System.debug('Processed File Details ==> '+e.DocumentProcessed.File);    
             }
         }
    }
}
public with sharing class CloudFilesEventTriggerHandler {

    public static void execute() {
        List<Id> recordIds = new List<Id>();
        for(cldfs__CloudFilesEvent__c obj : (List<cldfs__CloudFilesEvent__c>)Trigger.new){
            recordIds.add(obj.Id);
        }
        processCloudFilesEvents(recordIds);
    }

    @future(callout=true)
    public static void processCloudFilesEvents(List<Id> recordIds) {

        List<cldfs__CloudFilesEvent__c> records = [SELECT Id, Name, cldfs__Data__c, cldfs__Object_Type__c, cldfs__Request_Id__c, cldfs__Type__c, CreatedDate FROM cldfs__CloudFilesEvent__c WHERE Id IN :recordIds];
        if (records.size() == 0) return;
         //output from GetEventDetails
         List<cldfs.Event> returnedEvents = new List<cldfs.Event>();

         //Inputs for GetEventDetails
         List<cldfs.GetEventDetails.FlowInput> getEventDetailInputs = new List<cldfs.GetEventDetails.FlowInput>();
 
         //Input mapping for GetEventDetails
         for(cldfs__CloudFilesEvent__c record : records){
             cldfs.GetEventDetails.FlowInput singleInput = new cldfs.GetEventDetails.FlowInput();
             singleInput.eventCustomObj = record;
             getEventDetailInputs.add(singleInput);
         }
 
         //Get the event details
         returnedEvents = cldfs.GetEventDetails.GetEventDetails(getEventDetailInputs);
 
         //Process the returned events
         for(cldfs.Event e : returnedEvents){
             if(e.Type == 'document-processed'){
                 System.debug('Context ==> '+e.DocumentProcessed.Context);
                 System.debug('Processed Document Id ==> '+e.DocumentProcessed.ProcessedDocumentId);
                 System.debug('Processed File Details ==> '+e.DocumentProcessed.File);    
             }
         }
    }
}
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Apex Types for different platform event types:
Line #35 in the example above displays outputs from the DocumentProcessed﻿ event type(i.e. type number 14 in the list below). Depending on your use case, Here are the avilable platform event types and their custom Apex types that you may use to access relevant information:
file-uploaded - FileUpload﻿ 
file-replaced - FileReplace﻿ 
salesforce-file-attached - SalesforceFilesAttached﻿ 
salesforce-file-copied - SalesforceFileCopied﻿ 
folder-created - FolderCreated﻿ 
resource-updated - ResourceUpdated﻿ 
content-version-created - ContentVersionCreated﻿ 
content-version-created-batch - ContentVersionCreatedBatch﻿ 
file-received - FileReceived﻿ 
resource-attached - ResourceAttached﻿ 
document-generated - DocumentGenerated﻿ 
resource-cloned - ResourceCloned﻿ 
file-viewed - FileViewed﻿ 
document-processed - DocumentProcessed﻿ 
document-split - DocumentSplit﻿ 
resource-deleted - ResourceDeleted﻿ 
error-event - ErrorEvent﻿ 
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Platform Events
CloudFiles Client