An introductory course on how to go from little programming experience to writing your own NFT Smart Contract in Cadence. Along the way, you will learn important concepts about the Flow Blockchain and complete meaningful quests to aid your learning.
Hello!
The final code example, of the script transaction that will return the language from the reference appears to generate an error in the flow playground:
import Test from 0x01
pub fun main(): String {
let ref = Test.getReference(key: "Hello!")
return ref.language // returns "English" <--- produces this error: value of type @Test.Greeting? has no member "language". Unknown member.
}I was able to fix it by changing the code to the following:
import Test from 0x01
pub fun main(): String {
let ref = Test.getReference(key: "Hello!")
return ref!.language // returns "English"
}I suggest you assign the flow-blockchain Github topic to this repository for easier discoverability by the community.
This has become the official Flow blockchain topic: https://github.com/topics/flow-blockchain
Hello. I've found that we don't need to use quotes while writing TRANSACTION ARGUMENTS. So, may be this is not an actual information in course readme.md
Thank you, you're the best.
https://github.com/jacob-tucker/Flow-Zero-to-Jacob/tree/main/chapter4.0/day4
import CryptoPoops from 0x01
transaction() {
// Let's assume the `signer` was the one who deployed the contract, since only they have the `Minter` resource
prepare(creator: AuthAccount, recipient: AuthAccount) {
// Get a reference to the `Minter` from the `creator`
let minter = signer.borrow<&CryptoPoops.Minter>(from: /storage/Minter)
?? panic("This signer is not the one who deployed the contract.")
// create the new `Minter` resource
let newMinter <- minter.createMinter()
// the `recipient` save it to their account
recipient.save(<- newMinter, to: /storage/Minter)
}
}As if I'm going to the first class, it will be very interesting.
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