Solana: How can a swap between two decentralized exchanges (DEXs) be made atomic?
** Atomic replacements
Transactions of atomic replacements in the world of modern decentralized stock exchanges appeared as an exchanger to the gaming of merchants. Atomic Swaps is a type of transaction that allows users to exchange two crypts of currency or token in one atomic surgery, providing complete safety and reducing the risk of error. In this article, we will study how to change the Solane atoms, focusing on writing the program that buys Raydium marker and then sells it to the orcs and returns it to the user if there is an error at the time of sale.
What is an atom change?
Before we dive into details, we will quickly define what an atomic replacement is. Atomic Swaps is a type of transaction that provides a series of surgery as one without leaving any medium position or risk. This is contrary to the traditional replacements in which each operation is performed separately and errors may occur.
Process Language Select
You need to choose a programming language to introduce a solana atom. In this example, we will use Python who has excellent support for API Solana Noda.
Environmental Setting up
First check that you have the following prerequisites installed:
- Solar Node:
Solana Install Solana-Discord.py
- Python 3.7+ (with packets
Typeand ‘Py-Solan)
- Compatible wallet (eg solana cli)
Introducing atomic exchange
Here's a step -be -broke guide for an atomic swap salt:
1. Step: Set your wallet
Create a new wallet using the Solana Cli:
Bash
Solana Keygen -trass Max.jsons
`
Generate a private key and store itWallet.json. You can also use a default key.
2. Step: Define features
Define two features that will be used to modify atomic changes:
- BuytoKenonrayDium: Buy Markers on Raydium using Solan Cli.
!
Here’s a python function:
`Python
Import of salt cli
Def buy_token_on_raydium (private_key, sum):
"" "Buy a marker on Raydium." ""
Raydium = cli.solana_from_path (Private_KEY.PATH)
result = raydium.send_Appave (
"Raydium Token Program",
{
"Soft_id": "Raydium-Tocken-Program",
"Sum": {"Type": "NAint8", "Value": The sum},
Mozhlo
{"Wait_time": 2000},
wait for the program to be completed
)
return
Defl_token_on_orca (Private_Key, sum):
"" "Sold Marker Orca." ""
Orca = cli.solana_from_path (private_key.path)
result = orca.Send_Appave (
"Orca Marker Program",
{
"Soft_id": "Orca-token-Program",
"Sum": {"Type": "NAint8", "Value": The sum},
Mozhlo
{"Wait_time": 2000},
wait for the program to be completed
)
return
Def atomic_Swap (Private_KEY, sum):
"" "Make a change in atoms." "
Buy_result = buy_token_on_raydium (Private_key, sum)
Sell_result = Sell_token_on_orca (Private_Key, Sum)
If Buy_result.status! = "OK" or Sell_result.status! = "OK":
Return {"Error": "Error in Time of Exchange}
Step 3: Start atomic change
Now that you have defined features, you can start an atomic replacement:
Python
Private_KEY = "Road/Do/Private/Key"
sum = 1000000
replace with the desired amount of marker
Swap_result = ATOMIC_SWAP (Private_Key, amount)
Print (swap_result)
rating to change print
Error handling
You can add verification and registration of errors to process the error during change. Here's an updated implementation:
` Python
Import of salt cli
Def buy_token_on_raydium (private_key, sum):
“” “Buy a marker on Raydium.” “”
Raydium = cli.solana_from_path (Private_KEY.PATH)
try:
Rating = raydium.