updated simple example

Author: erhant

examples/simple/README.md

@@ -0,0 +1,19 @@
+# Simple Example
+
+In this example, we simply put and get a value from HollowDB.
+
+```sh
+yarn install
+```
+
+Run the example:
+
+```sh
+node index.js
+```
+
+You can also use a bundler (Irys) with, if you have funded your wallet:
+
+```sh
+USE_IRYS=true node index.js
+```

examples/simple/example.js

@@ -0,0 +1,65 @@
+const {SDK} = require('hollowdb');
+const {WarpFactory} = require('warp-contracts');
+const {computeKey} = require('hollowdb-prover');
+const {readFileSync} = require('fs');
+const Irys = require('@irys/sdk');
+
+async function uploadToIrys(jwk, payload) {
+  const irys = new Irys({
+    url: 'https://node1.irys.xyz',
+    token: 'arweave',
+    key: jwk,
+  });
+
+  try {
+    const receipt = await irys.upload(Buffer.from(JSON.stringify(payload)));
+    console.log(`Data uploaded ==> https://gateway.irys.xyz/${receipt.id}`);
+    return receipt.id;
+  } catch (e) {
+    console.log('Error uploading data ', e);
+    throw e;
+  }
+}
+
+async function main() {
+  const USE_IRYS = process.env.USE_IRYS === 'true' ? true : false;
+
+  const wallet = JSON.parse(readFileSync('./config/wallet.json', 'utf-8'));
+  const warp = WarpFactory.forMainnet();
+
+  // example contract
+  const contractTxId = 'bNsZhQ1UaZpAk-x-Zm7pq_EC15m-sLqsRTbki-LpW_M';
+
+  // create a hollowdb instance
+  const db = new SDK(wallet, contractTxId, warp);
+
+  // create a secret, this can be a signature/number or anything you want
+  const secret = BigInt(123);
+
+  // prepare your key, as a hash of your secret
+  const key = computeKey(secret);
+
+  // value can be anything you want to store, but it must not exceed 2kb
+  // if you need to store more than 2kb, you can use bundlr to store the data on arweave and store the txid in hollowdb
+  const payload = {
+    name: 'John Doe',
+    age: 21,
+    address: '123 Main St',
+  };
+
+  // put the key and payload into hollowdb
+  let result;
+  if (USE_IRYS) {
+    const txid = await uploadToIrys(wallet, payload);
+    await db.put(key, txid);
+
+    const getTxId = await db.get(key);
+    result = await fetch(`https://arweave.net/${getTxId}`);
+  } else {
+    await db.put(key, payload);
+    result = await db.get(key);
+  }
+  console.log(JSON.parse(result));
+}
+
+main();

examples/simple/exampleBundlr.js

@@ -3,8 +3,8 @@
   "author": "FirstBatch Team <dev@firstbatch.xyz>",
   "private": true,
   "dependencies": {
-    "@bundlr-network/client": "^0.11.0",
-    "hollowdb": "latest",
+    "@irys/sdk": "^0.1.1",
+    "hollowdb": "^1.3.5",
     "hollowdb-prover": "latest"
   }
 }