[Solved] If you run this query:{ order { customer { name } } }With schema:type Order { customer: Customer } type Customer { name: String }What is the expected output? | GraphQL

GraphQL - Type Relationships

If you run this query:

{ order { customer { name } } }

With schema:

type Order { customer: Customer } type Customer { name: String }

What is the expected output?

AThe customer's name for the order

BAn error due to missing orders field

CList of all customers

DOrder ID only

Step-by-Step Solution

Solution:

Step 1: Understand the query fields
The query asks for an order's customer and that customer's name.
Step 2: Match schema fields
Order has a customer field of type Customer, which has a name field, so the query returns the customer's name.
Final Answer:
The customer's name for the order -> Option A
Quick Check:
Nested fields return nested data [OK]

Quick Trick: Nested fields fetch nested related data [OK]

Common Mistakes:

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