query.graphql

# Type queries into this side of the screen, and you will 
# see intelligent typeaheads aware of the current GraphQL type schema, 
# live syntax, and validation errors highlighted within the text.

# We'll get you started with a simple query showing your username!
query Test($owner: String!, $repo: String!, $baseRefName: String!, $cursor: String, $prCount: Int!) { 
  repository(owner: $owner, name: $repo) {
    pullRequests(before: $cursor, last: $prCount, states: [MERGED], baseRefName: $baseRefName) {
      totalCount,
      pageInfo {
        endCursor
        hasNextPage
        hasPreviousPage
        startCursor
      }
      edges {
        cursor,
    		node {
          baseRef {
            id,
            name
          },
          headRef {
            id,
            name
          },
          url,
          title
        	labels (first: 100) {
            pageInfo {
              endCursor
              hasNextPage
              startCursor
            } 
          	edges {
            	node {
              	id,
              	name
            	}
          	}
          }
        }
      }
    }
  }
}

variables.json

{ "owner": "nodejs", "repo": "node", "baseRefName": "master", "prCount": 10, "cursor": "Y3Vyc29yOnYyOpHOCLcpYw==" }