I can walk you through how to resolve an undefined function error in a Solana node application.
Understanding the Error
The “undefined function” error usually occurs when a JavaScript or TypeScript file (e.g. app.cjs, server.js) cannot be found, which causes a crash during execution. However, in this case, you are encountering an error related to creating tokens from Candy Machine, which suggests that your Solana node is not properly configured to interact with the Candy Machine network.
Steps to Fix the Problem
- Check your node dependencies: Make sure that all the dependencies required for creating tokens are installed and up to date.
– Run npm install or yarn install to update the dependencies.
- Check your Solana version
: Check that your node is running a compatible version of Solana (e.g. 1.6.x). You can check the version using
solana command --version.
- Import correctly:
– Make sure you have imported the correct library for minting tokens from Candy Machine. The candy-machine library should be imported correctly as part of your Solana application entry point.
– It looks like you have both app.cjs and server.js. However, if one of them uses a different import path or syntax, this could cause problems.
- Check your Solana node configuration:
– Make sure your node configuration in server.js contains the necessary parameters for minting tokens from Candy Machine.
– Specifically, check that candyMachineUrl, candyMachineApiKey, and any other required configuration parameters are configured correctly.
- Error handling:
– In the code, errors are handled using a try-catch block. Make sure that your coin creation logic is properly placed in a catch block to prevent unexpected application exits.
– However, the Solana API may also throw specific error codes that do not fit the typical “undefined function” messages.
Sample code for reference
Here is a simplified example of implementing Candy Machine token creation in app.js:
const candyMachineUrl = ' // Replace with your node URL or API endpoint
const candyMachineApiKey = '';
const candyMachineTokenId = 'MC12345';
async function mint() {
try {
const response = await fetch(${candyMachineUrl}/mint?apiKey=${candyMachineApiKey}&tokenId=${candyMachineTokenId});
if (response.ok) {
console.log('Token minted successfully!');
} else {
throw new Error(Error minting token: ${response.status} ${response.statusText});
}
} catch (error) {
console.error(error);
// Handle the error or re-throw it if necessary
}
}
mint();
Replace testnet.candy-machine.org with your actual Solana node URL and
Conclusion
The solution provided includes understanding what specific steps need to be taken in the code base to resolve the undefined function error encountered. This may require additional troubleshooting steps or examining the candy-machine library documentation. Always test thoroughly after making changes to ensure compatibility and reliability.