I see this error in the Terminal while building a Rust application (which happens to be about NEAR Protocol, if you're curious): error[E0463]: can't find crate for core note: the "wasm32-unkn...

I'm using https://github.com/near/workspaces-rs/ and have lines in my functions like log!("Removed {} from {}", &key, &recipient); (using use near_sdk::{env, log};) But those log ...

Where can someone increase the number of tokens on their TestNet account on NEAR Protocol if they run out?

Can someone help me understand the relationship and distinction amongst these three concepts? It seems like context.predecessor == context.contractName checks are common.

I was wondering how come some blocks exist but some don't? It seems like they get skipped and I'm unsure as to why. For example: 87868936 exists and so does 87868938 but 87868938 does not. Thanks! ...

In this post, I'll run through how you can import an account into the NEAR Wallet using only your private key. This is useful when you've created accounts (or sub-accounts) using the CLI or near-ap...

I am creating a subaccount using command: near create-account 123.xyz.testnet --masterAccount xyz.testnet But it only generates the public key and private key, how to get the seed phrase of the acc...

I'm attempting to delete a NEAR wallet and transfer the remaining fund to another wallet by using the following command: near delete choyeumeo.near maimai276.near But seems like the action failed b...

I've been able to run near dev-deploy using near-shell for a Rust contract, and then call a function "new" with near call my-account new '{"param1": "foo"}' However, this does not work when I depl...

In this post, I'll go through what causes the cryptic error message "Smart contract panicked: panicked at 'Cannot deserialize the contract state.: Custom { kind: InvalidData, error: "Not ...

This post will outline the most common source of the famed "Exceeded the prepaid gas." error and how you can try and debug the problem. With that being said, I'm quickly going to outline ...

I have signed the message, using ed25519 const msg = Buffer.from("hi"); const signerKeyPair = await keyStore.getKey(config.networkId, signerAccount); const { signature } = signerKeyPair.s...

I'm new in blockchain, smart contract and near protocol. I'm trying to learn from https://near.academy/ . There's a sample contract on testnet : museum.testnet. I'm using windows and i installed ws...

How can you extract the smart contract WebAssembly binaries by exploring the NEAR protocol blockchain?

Assume there's a contract written in near-sdk-rs, deployed, has state defined as: #[near_bindgen] #[derive(BorshDeserialize, BorshSerialize)] pub struct NFT { pub tokens: UnorderedMap<TokenId, ...

For various use cases it's valuable to display historical data of the balance on some account. What is the best way to query this data from NEAR protocol?

Writing NEAR smart contracts in Rust, my compiler seems to require objects sent through the API to have the Serialize trait, and objects stored in the blockchain to have BorshSerialize and BorshDes...

After reading more about how transactions are processed by NEAR I came up with this picture of how a few key parts are related. I am seeking some pointers on how to correct this. First a few key po...

Obviously the accounts have changed significantly but is there an easy way to view the mapping of original accounts and balances when the network launched? Basically, where is the genesis hash?

There are various scenarios when you may possess either account id (this is public information) or own the private (secret) key (e.g. extract it from NEAR Wallet local storage), and you want to kno...

NEAR's accounts can have many different key pairs accessing the same account. The keys can also change and rotate. Which means the default way of encrypting messages for specific user with their pu...

I am trying to sign the message in javascript using signMessage and verify it with python for implementing jwt authentication. This is the code for signing message in javascript using near-api-js ...

In ethereum, JWT authentication takes place with the following process: https://github.com/Bearle/django-web3-auth/ 1) Users sign a message in metamask using accounts private key. 2) account addr...

I know a bunch of crypto wallets which works in IFRAMEs and similar technologies right inside a web browser without needing to install any plugins: https://authereum.org https://www.portis.io htt...

I want to write tests that require the ability to change predecessor accounts mid-test. But I couldn't find a way to change the VMContext dynamically. fn get_context(value: u128) -> VMContext ...