Filtering and Searching for Meme Coins in Solana: A Step-by-Step Guide
As a developer working in the cryptocurrency market, you are likely familiar with the concept of meme coins. These speculative assets are driven by community sentiment rather than fundamental analysis, making them highly volatile and sensitive to market conditions. With the rise of decentralized data platforms such as Jupiter’s API and Sentient Market, it has become easier to access and analyze large datasets in Solana. However, for those who want to filter and search for specific meme coins based on different conditions, this article provides a comprehensive guide.
Prerequisites
Before diving into the code, make sure you have:
- A Solana node installed and running (e.g. Solana CLI, SOL.js).
- Familiarity with the Solana programming language (JavaScript or Rust).
- Familiarity with GraphQL (optional).
Step 1: Install Dependencies
In order to interact with the Sentient Market API, we need to install the package “@sentient-market/sentient”. Run the following command in your terminal:
npm install @sentient-market/sentient
Or if you are using yarn:
yarn add @sentient-market/sentient
Step 2: Configure the Sentient Market API
Create a new file called “sentient.json” in the root of your project and add the following content:
{
"apiKey": "YOUR_API_KEY_HERE",
"apiEndpoint": "
"headers": {
"Authorization": "Bearer YOUR_ACCESS_TOKEN_HERE"
}
}
Replace “YOUR_API_KEY_HERE” and “YOUR_ACCESS_TOKEN_HERE” with your actual Sentient Market API credentials.
Step 3: Enable GraphQL Query
In your Solana project, create a new file called “meme-coins.graphql” and add the following content:
write MemeCoin {
id: ID!
name: String!
symbol: string!
marketCap: Float!
}
write query {
memeCoins: [MemeCoin!]!
}
This query defines a type of “memeCoins” with an array of “MemeCoin” objects and a single field for the first argument, which is an empty list. We will use this to retrieve data from the Sentient Market API.
Step 4: Retrieve data using GraphQL
Create a new file called “fetchMemeCoins.js” and add the following code:
“javascript
const { gql } = require('graphql-tag');
const { SolanaProgram } = require('@solana/web3.js');
const SENTIENT_API_URL = '
const API_KEY = 'YOUR_API_KEY_HERE';
const ACCESS_TOKEN = 'YOUR_ACCESS_TOKEN_THERE';
async function fetchMemeCoins() {
const program = new SolanaProgram(
// Replace with your Solana project ID
process.env.SOLANA_PROJECT_ID,
// Set Sentient Market API URL and credentials here
"
[
{
accounts: [
{ accountId: 'meme-coins-query' },
{
accountId: 'sentiment',
pubkeys: ['accountPubkey'],
},
],
functions: {
fetchMemeCoins: {
args: [{}],
returns: {
memeCoins: MemeCoin,
},
},
},
},
]
);
try {
const response = await program.fetch(
query { memeCoins }`,
{ variables: {} }
);
return response.data.memeCoins;
} catch (error) {
console.error(error);
}
}
// Execute the query to retrieve the data
fetchMemeCoins().then((data) => {
const memeCoins = data.memeCoins;
// Filter and retrieve specific meme coins based on conditions
function filterMemeCoins(memeCoinList, condition) {
return memeCoinList.filter((coin) => {
if (condition type === ‘string’) {
return coin.name.