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Angel F Syrus
Angel F Syrus

Reputation: 2042

Nested query GraphQL : Syntax error - iOS

I am working with Apollo GraphQL and have to call nested query .But while call the Query in .graphql file it showing

Syntax error : Expected Name, found {

Let me know how to call Nested query of GraphQL. enter image description here

I have to call getAllproduct{....} query with the specified parameters.Here the FilterInput having the parameter as location with another pattern of query , so I don't know how to call this nested query.Anyone please help me to find out the solution.Thanks...

Upvotes: 0

Views: 310

Answers (1)

Daniel Rearden
Daniel Rearden

Reputation: 84677

If an argument is an Input Object Type (as opposed to a Scalar), you can include the fields of the Input Object Type by using curly brackets.

query MyProductsQuery {
  allProducts(
    pageNumber: "someString"
    filter: {
      title: "someOtherString"
      yearFrom: 1900
      location: {
        city: "yetAnotherString"
        state: "FL"
      }
    }
  ) {
    id
    # other product fields
  }
}

Of course, hardcoding those values in a .graphql file is not very helpful. You probably want to be able to swap those values out programatically. So here's what that same query looks like with variables:

query MyProductsQuery($pageNumber: String, $filter: FilterInput) {
  allProducts(pageNumber: $pageNumber, filter: $filter) {
    id
    # other product fields
  }
}

Your variables are passed in separately from your query and unlike your query, are not a GraphQL document. They are just JSON:

{
  "pageNumber": "someString",
  "filter": {
    "title": "someOtherString",
    "yearFrom": 1900,
    "location": {
      "city": "yetAnotherString",
      "state": "FL"
    }
  }
}

Upvotes: 2

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