Allow index to be fetched based on fieldName

[QUzair]

Having issues for pulling separate indexes for different pages.

Current:

/my-site/page1

query SearchbarIndexQuery {
  localSearchPage1 {
    index
    store
  }

/my-site/another-page

query SearchbarIndexQuery {
  localSearchAnotherPage {
    index
    store
  }

Preferred:

query($indexName: String) {
  localSearchPages(filter: {indexName: {eq: $indexName}}) {
    index
    store
  }

Because gatsby tries to validate pageQueries on compile time the current version requires a dynamic string to be passed in, unless theres a better approach?