Future Callout Throws: System.LimitException: Too many future calls: 51

Question

I am trying to call the external API endpoint from Salesforce when an account is created. I created a trigger on the Account which looks like below

trigger createSegSubSegmentD on Account (after insert) {        
    Id AccParentRecordTypeId = Schema.SObjectType.Account.getRecordTypeInfosByName().get('Parent Account').getRecordTypeId();
    String recordType = '';        
    if(trigger.isinsert)
    {
        set<Id> AccountIds = new Set<Id>();
        list<Account> acclist = new list<Account>();
        for(Account acc : trigger.new){
            AccountIds.add(acc.Id); 
        }
    if(AccountIds.size()&gt;0)
    {
        acclist = [Select id,Data_Source_ID__c,Parent.Data_Source_ID__c,RecordTypeId from Account WHERE Id IN: AccountIds ];

        for(Account acc : acclist)
        {
           // If the record is Parent account
                if(acc.RecordTypeId == AccParentRecordTypeId)
                {
                    recordType = 'Segment';
                    if(String.isNotBlank(acc.Data_Source_ID__c) ||String.isNotEmpty(acc.Data_Source_ID__c)) 
                    {                                handleDRequest.createSegSubSegD(acc.Data_Source_ID__c,acc.Parent.Data_Source_ID__c,recordType);
                    }}
               }}

Where I have a apex Class which makes the future callouts to the third party endpoints

    // Called from the trigger when a Parent/Site account is created
    public static void createSegSubSegD (String segID,String parSegID,String recordType)
    {
        String jsonBody = '';
        String endPoint = '';
        if (segID != null){             
            if(recordType == 'Segment')
            {
                // Compose Json Body for the Segment creation
                SegJSON js = new SegJSON();
                js.dataAreaId = 'abc';
                js.SegmentCode = segID;
                jsonBody = json.serialize(js); 
                endPoint = '/data/ABCParentAccounts'; 
                createSegSubSegment(jsonBody,endPoint);
            }
        }
@future (callout=true)
    public static void createSegSubSegment(String jsonBody,String endPoint) {
        String clientId = '';
        String clientSecret = '';
        String resource = '';
        String tenant_id = '';
        String bearerToken = '';

        try{

            DSetting__c[] DObj_Data = [SELECT Client_ID__c,Client_Secret__c,Resource__c,Tenant_ID__c from DSetting__c where Name = 'ccc' ];
            if( DObj_Data.size() > 0 ) 
            {
                clientId = DObj_Data[0].Client_ID__c;
                clientSecret = DObj_Data[0].Client_Secret__c;
                resource = DObj_Data[0].Resource__c;
                tenant_id =  DObj_Data[0].Tenant_ID__c;
            String reqbody = 'grant_type=client_credentials&client_id='+clientId+'&client_secret='+clientSecret+'&tenant_id='+tenant_id+'&resource='+resource;

            Http h = new Http();
            HttpRequest req = new HttpRequest();
            req.setBody(reqbody);
            req.setMethod('POST');
            req.setEndpoint('https://login.microsoftonline.com/abc.org/oauth2/token');
            HttpResponse res = h.send(req);

            if(res.getstatusCode() == 200 && res.getbody() != null){
                deserializeResponse resp1 = (deserializeResponse)JSON.deserialize(res.getbody(),deserializeResponse.class);
                bearerToken = resp1.access_token;
            }

            Http http1 = new Http();
            HttpRequest req1 = new HttpRequest();
            String dEndPoint = resource + endPoint;           
            req1.setMethod('POST');
            req1.setTimeout(20000);
            req1.setHeader('Authorization','Bearer '+bearerToken);
            req1.setEndpoint(dEndPoint);
            req1.setBody(jsonBody);
            req1.setHeader('Content-Type', 'application/json;charset=UTF-8');
            HttpResponse res1 = http1.send(req1);
       }
    }
    catch(CalloutException  e)
    {
        system.debug('Exception Occurred in Call Out to ' + e.getMessage());
    }
    catch(Exception e)
    {
        system.debug('Exception Occurred' + e.getMessage());
    }
}

//Deserialize the response received from the Authorization provider
public class deserializeResponse
{
    public String token_type;
    public String expires_in;
    public String ext_expires_in;
    public String expires_on;
    public String not_before;
    public String resource;
    public String access_token;
}       

}

When I tried to create the account using Data loader with 10 records it worked. But when I tried to create the over 100 records I am getting error in the data loader like createSegSubSegmentD: System.LimitException: Too many future calls: 51

Looking in to different questions on the stackexchange there is different solution batcahable, Queueable. Can anyone suggest whether queuable/batcahble works for future callouts here. Also here I the external API uses the OAUTH authentication, so I am calling the Auth Provider get the access token and then calling the Endpoint. Also if I am changing the apex calss to Batcahable/Queable does that work well with just 1 record? Any help is greatly appreciated

Answer 1

You could still use future methods, you just need to bulkify your future code to accept a list of inputs instead of just one. Have every 50 records or so be placed into a single future call. If you decide to use Queueable or Batchable, you would still need to bulkify your code, since you only get a handful of each type you can use per transaction. I would recommend using future or Queueable for code to be called from triggers, since there may be many calls, and Batchable calls are severely limited.