I need to make such mutation from frontend:

input ActionMemberInput {
    personId: ID!
    side: String!
  }

  createAction(
    title: String!
    date: String!
    description: String
    karma: String!
    executors: String!
    members: [ActionMemberInput!]!
  ): Action!

That's schema from frontend:

export const CREATE_ACTION = gql`
  mutation createAction(
    $title: String!,
    $date: String!,
    $description: String!,
    $karma: String!,
    $executors: String!,
    $members: [ActionMembersInput!]!,
  ) {
    createAction(
      title: $title,
      date: $date,
      description: $description,
      karma: $karma,
      executors: $executors,
      members: $members,
    ) {
      id
      title
      date
      description
      karma
      executors
      members {
        person {
          id
          name
        }
        side
      }
    }
  }
`;

When I'm trying to make such mutation from frontend, I get error 404. I guess the problem somewhere there -

$members: [ActionMembersInput!]!,

(frontend schema) I tried to make same mutation from frontend and from playground and it worked in playground but didn't work in frontend