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GITBOOK-317: change request with no subject merged in GitBook

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enzo 2023-05-26 12:02:01 +00:00 committed by gitbook-bot
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1 changed files with 12 additions and 26 deletions
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developers/ocean.js/update-metadata.md
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@ -15,48 +15,35 @@ The variable **AQUARIUS\_URL** and **PROVIDER\_URL** should be set correctly in
#### Create a script to update the metadata #### Create a script to update the metadata
Create a new file in the same working directory where configuration file (`config.py`/`config.js`) and `.env` files are present, and copy the code as listed below. Create a new file in the same working directory where configuration file (`config.js`) and `.env` files are present, and copy the code as listed below.
{% tabs %} {% tabs %}
{% tab title="ocean.js" %} {% tab title="ocean.js" %}
{% code title="updateMetadata.js" %} {% code title="updateMetadata.js" %}
```javascript ```javascript
// Import dependencies // Note: Make sure .env file and config.js are created and setup correctly
const { const { oceanConfig } = require('./config.js');
Nft, const { ZERO_ADDRESS, NftFactory, getHash, Nft } = require ('@oceanprotocol/lib');
ProviderInstance,
getHash,
Aquarius
} = require('@oceanprotocol/lib');
const { SHA256 } = require('crypto-js');
const Web3 = require('web3');
const { web3Provider, oceanConfig } = require('./config');
// Create a web3 instance
const web3 = new Web3(web3Provider);
// Create Aquarius instance
const aquarius = new Aquarius(oceanConfig.metadataCacheUri);
const nft = new Nft(web3);
const providerUrl = oceanConfig.providerUri;
// replace the did here // replace the did here
const did = "did:op:a419f07306d71f3357f8df74807d5d12bddd6bcd738eb0b461470c64859d6f0f"; const did = "did:op:a419f07306d71f3357f8df74807d5d12bddd6bcd738eb0b461470c64859d6f0f";
// This function takes did as a parameter and updates the data NFT information // This function takes did as a parameter and updates the data NFT information
const setMetadata = async (did) => { const setMetadata = async (did) => {
const accounts = await web3.eth.getAccounts();
const publisherAccount = accounts[0]; const publisherAccount = await oceanConfig.publisherAccount.getAddress();
// Fetch ddo from Aquarius // Fetch ddo from Aquarius
const ddo = await aquarius.resolve(did); const ddo = await await oceanConfig.aquarius.resolve(did);
const nft = new Nft(oceanConfig.ethersProvider);
// update the ddo here // update the ddo here
ddo.metadata.name = "Sample dataset v2"; ddo.metadata.name = "Sample dataset v2";
ddo.metadata.description = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam"; ddo.metadata.description = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam";
ddo.metadata.tags = ["new tag1", "new tag2"]; ddo.metadata.tags = ["new tag1", "new tag2"];
providerResponse = await ProviderInstance.encrypt(ddo, providerUrl); const providerResponse = await oceanConfig.ethersProvider.encrypt(ddo, process.env.OCEAN_NETWORK_URL);
const encryptedResponse = await providerResponse; const encryptedResponse = await providerResponse;
const metadataHash = getHash(JSON.stringify(ddo)); const metadataHash = getHash(JSON.stringify(ddo));
@ -65,7 +52,7 @@ const setMetadata = async (did) => {
ddo.nftAddress, ddo.nftAddress,
publisherAccount, publisherAccount,
0, 0,
providerUrl, process.env.OCEAN_NETWORK_URL,
'', '',
'0x2', '0x2',
encryptedResponse, encryptedResponse,
@ -73,7 +60,7 @@ const setMetadata = async (did) => {
); );
// Check if ddo is correctly udpated in Aquarius // Check if ddo is correctly udpated in Aquarius
await aquarius.waitForAqua(ddo.id); await oceanConfig.aquarius.waitForAqua(ddo.id);
console.log(`Resolved asset did [${ddo.id}]from aquarius.`); console.log(`Resolved asset did [${ddo.id}]from aquarius.`);
console.log(`Updated name: [${ddo.metadata.name}].`); console.log(`Updated name: [${ddo.metadata.name}].`);
@ -89,7 +76,6 @@ setMetadata(did).then(() => {
console.error(err); console.error(err);
process.exit(1); process.exit(1);
}); });
``` ```
{% endcode %} {% endcode %}