Atomic swaps on Solana: A step -by -step guide
In today’s decentralized exchanges (DEX), atomic swaps have appeared as a game changer. An atomic swap is a type of transaction that allows users to change two cryptocurrencies or chips to a single atomic operation, ensuring total security and minimizing the risk of errors. In this article, we will explore how to make an atomic exchange on Solana, focusing on writing a program that buys a token on Raydium, then sells Orca and returns the user if there is an error while selling.
What is an atomic swap?
Before we sink into details, let’s define quickly which is an atomic swap. An atomic swap is a type of transaction that ensures that a number of operations are performed as one, without leaving any state or intermediate risk. This is in contrast to traditional swaps, where each operation is performed separately and errors may occur.
Choosing a programming language
To implement an atomic swap on the Solana, you will need to choose a programming language. For this example, we will use Python, which has excellent support for solar Node API.
Setup Environment
First, make sure you have the following installed premises:
- Solar node:
Solan Install Solana-Discor.py
- Python 3.7+ (with “Type” and
Py-Solanapackages)
- A compatible wallet (eg solar cli)
Implementation of Atomic Swap
Here is a step -by -step guide for implementing an atomic swap on Sola:
Step 1: Set up the wallet
Create a new wallet using Sola Cli:
`Bash
Solana Keygen -Portofel Path.Json
Generate a private key and store it inWallet.json. You can also use the default keyboard.
Step 2: Define functions
Define two functions that will be used to perform the atomic swap:
- Buytokenonraydium
: Buy a token on raydium using the solar cli.
- SellTokenonorca
: sell a token on the orca using solar cli.
Here are the Python functions:
Python
Import Sola Cli
Def bought_token_on_raydium (Private_Key, sum):
"" "Buy a token on Raydium." ""
raydium = cli.solana_from_path (private_key.patch)
result = raydium.send_approve (
"Raydium token program",
{
"Program_id": "raydium-token-program",
"Sum": {"Type": "uint8", "value": sum},
},
{"Wait_time": 2000},
Wait for the program completion
)
Return result
Def sell_token_on_orca (Private_Key, sum):
"" "Sell a token on the orca." ""
orca = cli.solana_from_path (private_key.patch)
result = orca.Send_approve (
"ORCA JETON PROGRAM",
{
"Program_id": "orca-token-program",
"Sum": {"Type": "uint8", "value": sum},
},
{"Wait_time": 2000},
Wait for the program completion
)
Return result
Def atomic_swap (Private_Key, sum):
"" "Perform an atomic swap." ""
Buy_result = buy
sell_result = sell_token_on_orca (private_key)
If Buy_result.status! = "ok" or sell_result.status! = "ok":
Return {"Error": "Error during swap"}
Step 3: Run the Atomic Swap
Now that you have defined the functions, you can run the atomic swap:
Python
Private_Key = "Path/to/Private/Key"
Sum = 1000000
Replace with your desired amount
swap_result = atomic_swap (private_key, sum)
Print (Swap_result)
Print the Swap result
Error handling
To handle errors during the swap, you can add the verification and record of the errors. Here is an updated implementation:
` Python
Import Sola Cli
Def bought_token_on_raydium (Private_Key, sum):
“” “Buy a token on Raydium.” “”
raydium = cli.solana_from_path (private_key.patch)
try:
result = raydium.
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