I have following code:

Http httpProtocol = new Http();
            HttpRequest request = new HttpRequest();
            system.debug(logginglevel.INFO , '$$ ' + ValueProvider.constructEndpoint(addressToDetermineCoordinates));
            String endpoint = ValueProvider.constructEndpoint(addressToDetermineCoordinates);
            System.debug(Logginglevel.INFO , '#$ endpoint url: ' + endpoint);
            request.setEndpoint(endpoint);
            request.setMethod('GET');
            HttpResponse response = httpProtocol.send(request);
            system.debug(logginglevel.info , '## ' + response.toString() );
            
            System.debug(logginglevel.info , '@#response' + response.getBody());

            
And I am trying to send request to google maps api and recieve an answer as JSON. My variable "endpoint" contains following value:

https://maps.googleapis.com/maps/api/geocode/json?address=Lodz Tuszynska 101/7&key=[myAPIKey]

and when I am trying to do it manually via FIrefox i get proper JSON representation, but in apex I get: "12:41:58:073 USER_DEBUG [17]|INFO|## System.HttpResponse[Status=Bad Request, StatusCode=400]" . I have tried to replace all spaces to "%" in my endpoint but it did not work. COuld you please give me some advice what I am doing wrong?