Upvote:2
You would Need to book the tickets before applying for the visa I'm afraid - the exception is where tickets cannot be booked in advance (which is not the case here since you're already in Ukraine), in which case you should explain it to the embassy in an explanation letter containing your itinerary, which the embassy may or may not accept.
The good news is, if you give them the required docs, in all likelihood you'll have no problems getting it. Russian and Belarusian transit visas are easy to get for EU citizens.
You don't need to show any hotel bookings for a transit visa, only the Transport tickets
Your only other option is going via Poland rather than Belarus
Upvote:4
I am from Germany and am staying in Minsk for a little more than one month right know. For my Visa I needed
If you do not want to stay I am pretty sure, for a transit visa, there are no such requirements. But you may have to present some proof that you will travel further, like a flight ticket or a visa of the country you are travelling to.