SOLANA SERIES

How to get Solana NFT metadata

A guide to fetch the metadata of Solana NFT

In this tutorial, we’ll go over utilizing the Moralis Solana API and NodeJS to retrieve the metadata of Solana NFT.

To set up the application, follow the instructions below.

1. Create a package.json file as below

npm init -y

2. Install moralis and @moralisweb3/common-sol-utilsdependency as follows

npm i moralis @moralisweb3/common-sol-utils

3. Your package.json should contain the following

{
  "name": "solana-nft-metadata",
  "version": "1.0.0",
  "description": "",
  "main": "server.js",
  "scripts": {
    "start": "node server.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@moralisweb3/common-sol-utils": "^2.7.4",
    "dotenv": "^16.0.3",
    "express": "^4.18.2",
    "moralis": "^2.7.4"
  }
}

4. Create a .env file which contains the Moralis API_KEY

API_KEY = “Your Moralis API Key”

5. Start the server in server.js

require('dotenv').config();
const express = require('express');
const app = express();

app.use(express.json());

app.listen(8080, async () => {
    console.log('server started');
});

6. Start Moralis in server.js

require('dotenv').config();
const express = require('express');
const Moralis = require('moralis').default;

const app = express();
const { API_KEY } = process.env;

app.use(express.json())

async function startMoralis() {
    try{
        await Moralis.start({
            apiKey: API_KEY,
        });
    }catch(err) {
        console.log(err);
    }
}

app.listen(8080, async () => {
    startMoralis();
    console.log('server started');
})

7. Add a GET endpoint /sol-nft-metadata to get the Solana NFT metadata.

require('dotenv').config();
const express = require('express');
const Moralis = require('moralis').default;
const { SolNetwork } = require('@moralisweb3/common-sol-utils');

const app = express();
const { API_KEY } = process.env;

app.use(express.json())

async function startMoralis() {
    try{
        await Moralis.start({
            apiKey: API_KEY,
        });
    }catch(err) {
        console.log(err);
    }
}

app.get('/sol-nft-metadata', async (req, res) => {
    const network = SolNetwork.MAINNET;
    const { address } = req.body;
    try{
       const response = await Moralis.SolApi.nft.getNFTMetadata({
           address,
           network,
       });
       res.status(200).send(response.toJSON());
    }catch(err) {
      console.log(err);
    }
})

app.listen(8080, async () => {
    startMoralis();
    console.log('server started');
})

8. Test the endpoint using Postman

The test result is given below. Give the wallet address in req.body

Summary

Up to this point, we have talked about utilizing the Moralis Solana API and NodeJs to obtain the Solana NFT metadata. Open a Moralis account and play around with their APIs.

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