Docs
Login with NEAROur donation example enables to forward NEAR Tokens to an account while keeping track of it. It is one of the simplest examples on making a contract handle tranfers. Frontend of the Donation App Obtaining the Donation Example You have two options to start the Donation Example. You can use the app through …
Login with NEARThis example presents 3 instances of complex cross-contract calls. Particularly, it shows: How to batch multiple function calls to a same contract. How to call multiple contracts in parallel, each returning a different type. Different ways of handling the responses in the callback. info Simple Cross-Contract Calls Check the tutorial on how to …
Login with NEARCoin Flip is a game where the player tries to guess the outcome of a coin flip. It is one of the simplest contracts implementing random numbers. Starting the Game You have two options to start the example: Recommended: use the app through Gitpod (a web-based interactive environment) Clone the project locally. Gitpod …
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 NEARAdd the login functionality Plan We’re going to add a login button that uses near-api-js to login with NEAR. Below is the workflow of logging in: User clicks the login button near-api-js creates a private key in the browser A redirect to NEAR Wallet occurs, passing the public key. NEAR Wallet (often) has …
Connect Your Wallet
What is a Wallet?
Safely store and transfer your crypto and NFTs.
No need to create new accounts or credentials. Connect your wallet and you are good to go!
