About

This repository centers around a MEM function, Endowment leaderboard, designed to log submitted Arweave TXIDs that contribute 0.25 AR or more to the Arweave's endowment. Following this, it organizes contributors into a descending leaderboard based on their contribution amounts.

The MEM function accept retroactive contributions, allowing the submission of TXIDs posted before the function's deployment.

How and Why Send AR to the Endowment?

Sending AR to the endowment holds no financial benefit. Consider it a contribution or donation aimed at fortifying the permanent storage of Arweave's dataset. By contributing to the endowment, individuals play a vital role in bolstering the integrity and longevity of Arweave's data infrastructure.

Bootstrapping

This public good initiative has been launched, kickstarted by a donation of 10 AR to the endowment from the ANS protocol

Endowment Leaderboard function id: MJpJxe_2-EZW8mmw3faJ1-6aml5kl8kut2_GyIeMq8E

Contribution Guide

1- Contributing to the Endowment

Making a contribution to the endowment is straightforward. Simply set the desired AR amount as the transaction's reward. Here's an example using the arweave npm package:

npm install --save arweave

Code snippet:

⚠️ N.B: make sure to never upload your JWK file online ⚠️

import Arweave from "arweave";

export const arweave = Arweave.init({
  host: "arweave.net",
  port: 443,
  protocol: "https",
  timeout: 60000,
  logging: false,
});

const jwk = {}; // Arweave wallet's JWK (parsed)

async function contribute(arAmount) {
  try {
    let tx = await arweave.createTransaction(
      {
        data: Buffer.from("contributing to the Permaweb!", "utf8"),
        reward: arweave.ar.arToWinston(String(arAmount)),
      },
      jwk,
    );

    await arweave.transactions.sign(tx, jwk);
    const response = await arweave.transactions.post(tx);

    console.log(tx);
  } catch (error) {
    console.log(error);
  }
}

const amount = 1;

contribute(arAmount);

2- Logging the Contribution

Logging your contribution in the MEM's Endowment Leaderboard function is straightforward. We'll provide two examples: one using axios/fetch and another using curl. Additionally, app developers can seamlessly integrate this function as MEM is entirely RESTful.

Code Snippets:

Axios

async function logContribution(txid) {
  try {
    const contribute = [
      {
        input: {
          function: "log_contribution",
          txid: txid
        },
      },
    ];

    const req = await axios.post(
      "https://api.mem.tech/api/transactions",
      {
        functionId: functionId,
        inputs: contribute,
      },
      {
        headers: {
          "Content-Type": "application/json",
        },
      },
    );

    console.log(req?.data);
    return req?.data;
  } catch (error) {
    console.log(error);
  }
}

const contributionTxid = "B8uMF-6AE7Cr_QHH-3yLDPIu1nGDYrtA_xl3FqZu-fU";

logContribution(contributionTxid);

curl:

curl -X POST \
  https://api.mem.tech/api/transactions \
  -H "Content-Type: application/json" \
  -d '{
    "functionId": "MJpJxe_2-EZW8mmw3faJ1-6aml5kl8kut2_GyIeMq8E",
    "inputs": [
      {
        "input": {
          "function": "log_contribution",
          "txid": "B8uMF-6AE7Cr_QHH-3yLDPIu1nGDYrtA_xl3FqZu-fU" 
        }
      }
    ]
  }'

License

This repository is licensed under the MIT License.