func getList(_ request: Request)throws -> Future<Response> {

    let deviceIdReq = request.parameters.values[0].value
    let queryTrips = Trip.query(on: request).filter(.deviceId == deviceIdReq).all()
    var tripsR = [TripCustomContent]()
    var trips = [Trip]()

    return queryTrips.flatMap { (result) -> (Future<Response>) in
        trips = result

        var count = 0
        for t in trips {
            let tripIdString = String(t.id!)
            let v = Location.query(on: request).filter(.tripID == tripIdString).count().map({ (res) -> Int in
                return res
            })/*.map{ (result) -> (Int) in
             count = result
             return result
             }*/
            let tripCustomContent = TripCustomContent.init(startTimestamp: t.startTimestamp, endTimestamp: t.endTimestamp, deviceId: t.deviceId, locationCount: v)
            tripsR.append(tripCustomContent)
        }
        let jsonEncoder = JSONEncoder()
        let data = try jsonEncoder.encode(tripsR)
        let response = HTTPResponse.init(status: .ok, version: HTTPVersion.init(major: x, minor: y), headers: HTTPHeaders.init(), body: data)
        let finalResponse = Response.init(http: response, using: request)
        return try g.encode(for: request)
    }
}

struct TripCustomContent: Encodable {
var startTimestamp: String?
var endTimestamp: String?
var deviceId: String
var locationCount: Future<Int>
}