Login with NEARUpdating the contract To reiterate, we’d like anyone to be able to participate in the crossword puzzle, even folks who don’t have a NEAR account. The first person to win will “reserve their spot” and choose where to send the prize money: either an account they own or an account they’d like to …
Adding cross-contract calls, access key shuffling, etc. Read More »
Login with NEARFinal modifications Let’s modify our new_puzzle method a bit, and demonstrate how a smart contract author might use base64-encoded arguments. In the previous chapter we had a fairly long NEAR CLI command that called the new_puzzle, providing it the parameters for all the clues. Having these lengthy parameters on the CLI might get …
Using base64-encoded arguments when we create a new crossword puzzle Read More »
Login with NEARSeed phrase and key derivation There are two separate things we’ll want to do: Create a random seed phrase for the user when they visit the crossword puzzle. This will be used if they win and don’t have a NEAR account and wish to create one. They can then paste this seed phrase …
Implementing the seed phrase logic from the necessary libraries Read More »
Login with NEARThe linkdrop contract We’re going to take a small detour to talk about the linkdrop smart contract. It’s best that we first understand this contract and its purpose, then discuss calling a method on this contract. The linkdrop contract is deployed to the accounts testnet and near, which are known as the top-level …
Login with NEARReplacing our solution hash So far in this tutorial, the user sends the plaintext solution to the crossword puzzle smart contract, where it’s hashed and compared with the known answer. This works, but we might want to be more careful and avoid sending the plaintext solution. Why? Blockchains rely on many computers processing …
Login with NEARIntermediate concepts This chapter will go a bit faster than the previous ones. We’re going to be covering an important part of smart contract development: cross-contract calls. Cross-contract calls A cross-contract call is when a smart contract calls another smart contract. For instance, if alice.near calls contract A, and contract A makes a …
Intermediate concepts (cross-contract calls and more) Read More »
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