CODEWITHSUNDEEP
smartcontractsnearprotocol
j00yn
j00yn

Reputation: 227

near-api-js: Contract connection with no sender account

Is there a way I can initially connect to a contract without a signer? I want like to create a user flow where the user can explore with view calls, then choose to connect their wallet at a later time.

Most examples I can find of Contract Connection code includes a wallet connected Account. docs github docs

Upvotes: 3

Views: 281

Answers (2)

denbite
denbite

Reputation: 66

For those of you, who stumbled upon this question in 2024, there's been recently released update for near-api-js that extends the Contract class to enable view function calls with a plain Connection object

It ensures backward compatibility, so it won't break anything in your existing codebase https://github.com/near/near-api-js/pull/1325

The code example above can be re-written as:

const provider = new JsonRpcProvider("https://rpc.testnet.near.org");
const connection = new Connection("testnet", provider);
const contract = new Contract(connection, "guest-book.testnet", { viewMethods: ["getMessages"] });

await contract.getMessages({});

Upvotes: 0

Josh Ford
Josh Ford

Reputation: 326

Yes! You can query the state of an account by using the providers in near-api-js.

Example:

const { providers } = require("near-api-js");
const provider = new providers.JsonRpcProvider("https://rpc.testnet.near.org");

getState();

async function getState() {
  const rawResult = await provider.query({
    request_type: "call_function",
    account_id: "guest-book.testnet",
    method_name: "getMessages",
    args_base64: "e30=",
    finality: "optimistic",
  });

  const res = JSON.parse(Buffer.from(rawResult.result).toString());
  console.log(res);
}

https://docs.near.org/docs/api/naj-cookbook#read-state-without-an-account

Upvotes: 3

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