GROQ versus GraphQL

In Chapter 5, Sanity's GROQ Language, in the Advanced GROQ section, we wrote a GROQ query that returned all of the events for a particular venue. Now we will compare GROQ with GraphQL.

Recalling the GROQ syntax, the desired venue was named Will's Pub:

*[_type == "event" && venue->name == "Will's Pub"]{
  name,
  venue->{name}
}

Next, let's write the corresponding GROQ query in GraphQL:

{
  allEvent(where: 
  { venue: 
    { name: 
      { eq: 
   "Will's Pub" 
      }
    } 
  }
) 
  {
    name
    venue {
      name
    }
  }
}

GROQ's type == "event" equates to allEvent, which is a function. Note...