How to exchange one cryptocurrency for another?

Question

Programming

Hello everyone, the problem arose of exchanging one cryptocurrency for another. How to implement this?
For example, I want to exchange bitcoins for ether.
It would be desirable without third-party api. Himself, programmatically.

Answer 1

Interested in how to implement such an exchanger by software.
Raise bitcoin fullnode (>170GB) and ethereum fullnode.
Learn their API.
For the user, create a unique address to enter for each currency.
If the balance is not zero and at least 6 confirmations have passed, it can be exchanged for another currency and withdrawn.
This, if very briefly, but there are safety nuances in the wagon and a small cart.

Answer 2

Something like this:
эфир = биткойны * курс(эфир к биткойн)

Answer 3

Without an API, you can only make transactions, but not change the crypt in any way. Not a complicated API for the Binance exchange.

Answer 4

When you need to change crowns for yens, where do you go? That's right, the exchange.

Answer 5

In order not to catch a bunch of rakes, use the time-tested bitgo service, it has an adequate API and the number of currencies is varied

Answer 6

+WEX, +Blockchain