Fix Buy/Sell Logic, Update IDL, and Add Missing bn.js Dependency

[kiennd]

This pull request addresses compatibility and functionality issues introduced by the recent Pump.fun IDL update. The following changes have been made:

• Updated buy, sell, and createAndBuy functions to align with the updated IDL structure.

• Synchronized project interfaces with the latest Pump.fun IDL to ensure seamless program interaction.

• Added the missing bn.js dependency required for BigNumber operations.

[tranchien2002]

LGTM!

[LightYagami200]

Getting this error when attempting to create a token using this MR:

34 |         if ((0, idl_js_1.isCompositeAccounts)(acc)) {
35 |             validateAccounts(acc.accounts, accounts[acc.name]);
36 |         }
37 |         else {
38 |             if (!accounts[acc.name]) {
39 |                 throw new Error(`Account \`${acc.name}\` not provided.`);
                           ^
error: Account `feeRecipient` not provided.

[Storryy]

Getting this error when attempting to create a token using this MR:

34 |         if ((0, idl_js_1.isCompositeAccounts)(acc)) {
35 |             validateAccounts(acc.accounts, accounts[acc.name]);
36 |         }
37 |         else {
38 |             if (!accounts[acc.name]) {
39 |                 throw new Error(`Account \`${acc.name}\` not provided.`);
                           ^
error: Account `feeRecipient` not provided.

same here. Any fix for this?

[Storryy]

I changed the files that were changed in this commit, but I seem to run into this issue

[kiennd]

@LightYagami200 @Storryy i've updated new code, bellow is working log:

% npm run example

Initial test account balance: 2KGqqvJeURrkLuV9W8LXwErmvPuEcjekiMCt9gAzF1w1: 0.053529375 SOL

🔧 GlobalAccount: { initialized: true, authority: FFWtrEQ4B4PKQoVuHYzZq8FabGkVatYzDpEVHsK5rrhF, feeRecipient: 62qc2CNXwrYqQScmEdiZFFAnJR262PxWEuNQtxfafNgV, initialVirtualTokenReserves: 1073000000000000n, initialVirtualSolReserves: 30000000000n, initialRealTokenReserves: 793100000000000n, tokenTotalSupply: 1000000000000000n, feeBasisPoints: 95n }

📤 Create & Buy TX:
🔗 https://solscan.io/tx/5gNv8LzdSB6kAMYJ19JMKEub48oNkHpVzSNYAEUFePmYUu1iQNwThYaPT9374Dy76kEAatJLkFitsKZyERhrUH5Y
✅ Success: https://pump.fun/EgYErvxQUiuo87BcY3RPZZGj2JnfLmGHorFAZmDC7jsQ

📈 Bonding curve after create & buy: { virtualTokenReserves: 1072996423345256n, virtualSolReserves: 30000100000n, realTokenReserves: 793096423345256n, realSolReserves: 100000n, complete: false }

💰 SPL Balance after buy: 3576.654744

📤 Buy TX:
🔗 https://solscan.io/tx/9KUVMbaQYnAPYGRoSFuxA5jKJS7Bge1NNSaxfGrdDTWc4zyhakZ28iuQKpcxMbDEwWq7tZLTKgSg13z4pbXifNf

📈 Bonding curve after buy: { virtualTokenReserves: 1072727817469418n, virtualSolReserves: 30007611881n, realTokenReserves: 792827817469418n, realSolReserves: 7611881n, complete: false }

💸 Sell:

• amount: 3576654744
• exactSolOutput: 99100
• withSlippage: 98109
• vault PDA: 9FP2NECUSpPdgPZwd3ummxhEFXbkyUC1mRvjYwLcwYtF

📤 Sell TX:
🔗 https://solscan.io/tx/43Tjd6FMoMCdLFiDZpAeBqTZY7kBW11FtYNcnm4mXPRpoRGMu8mLZSz2JyfuUhCV1GcLRnEHh62ZjVapBUG8q19j

Final test account balance: 0.031397181 SOL
After full SPL sell: 0 SOL

📉 Bonding curve after sell: { virtualTokenReserves: 1072423395124162n, virtualSolReserves: 30016129961n, realTokenReserves: 792523395124162n, realSolReserves: 16129961n, complete: false }

[rckprtr]

I'm going to test and merge thank you!

[vacuumDev]

I'm going to test and merge thank you!

hey? its been a while