How can I access fulfillment_status values using Shopify APIs?

[Rudrava]

Hi i was integrating shopify apis. Where I'm trying to access the values of fulfillment_status as shown on the admin order listing. But when i try call the apis the fulfillment_status comes as null fulfillment array is []. 

    

I just want to know if there is any api endpoint that serves this values. 
I have tried FulfillmentEvents and webhooks nothing works. Please help