feat: add support for wsol swaps

README.md

@@ -1,17 +1,44 @@
 # Solana Sniper Bot
-Proof of concept - 2023-04-20
-
 This code is written as proof of concept for demonstrating how we can buy new tokens immediately after liquidity pool is created.
 
-Script listens to new raydium USDC pools and buys token for a fixed amount in USDC.
-Depending on speed of RPC node, the purchase usually happens before token is available on Raydium for swapping.
+Script listens to new raydium USDC/SOL pools and buys token for a fixed amount in USDC/SOL.
+Depending on speed of RPC node, the purchase usually happens before token is available on Raydium UI for swapping.
 
 # Setup
 In order to run the script you need to:
 - Create a new empty Solana wallet
 - Transfer some SOL to it.
-- Convert some SOL to USDC.
-  - We need USDC because the script is buying USDC pairs.
-- Set your PRIVATE_KEY, RPC_ENDPOINT and RPC_WEBSOCKET_ENDPOINT in the .env file (remove the .copy from the file name when done)
+- Convert some SOL to USDC or WSOL.
+  - You need USDC or WSOL depending on configuration set below.
+- Set your 
+  - PRIVATE_KEY (your wallet private key)
+  - RPC_ENDPOINT (https endpoint like helius/quicknode)
+  - RPC_WEBSOCKET_ENDPOINT (websocket endpoint like helius/quicknode)
+  - QUOTE_MINT (which pools to look at, USDC or WSOL)
+  - QUOTE_AMOUNT (amount used to buy each new token)
+  - COMMITMENT_LEVEL
+
+  in the .env file (remove the .copy from the file name when done). 
+  Make sure to replace default values.
+
 - Install dependencies by typing: `npm install`
 - Run the script by typing: `npm run buy` in terminal
+
+You should see following output:
+![output](output.png)
+
+# Support
+
+## Unsupported RPC node
+- If you see following error in your log file:
+`Error: 410 Gone:  {"jsonrpc":"2.0","error":{"code": 410, "message":"The RPC call or parameters have been disabled."}, "id": "986f3599-b2b7-47c4-b951-074c19842bad" }`
+it means your RPC node doesn't support methods needed to execute script.
+  - FIX: Change your RPC node. You can use Helius or Quicknode.
+
+
+- If you see following error in your log file:
+`Error: No SOL token account found in wallet: `
+it means that wallet you provided doesn't have USDC/WSOL token account.
+  - FIX: Go to dex and swap some SOL to USDC/WSOL. For example when you swap sol to wsol you should see it in wallet as shown below:
+![wsol](wsol.png)
+