Shyft
Start BuildingSupportWebsite
  • Welcome
    • 👋Introducing Shyft
    • 🏗️Start Building
  • Solana Infrastructure
    • 🚁Shyft RPCs
  • Yellowstone gRPC Network
    • Decoding gRPC Latency
    • ⚡gRPC Docs
      • Introduction
      • Authentication
      • Subscribe Requests
      • FAQ
      • Getting Started
        • Initializing the Yellowstone Client
        • Making a gRPC connection
        • Adding a Reconnection Mechanism
        • 🔥Replaying Slots with Solana yellowstone gRPCs
        • Modifying your Subscribe Request
        • Closing a gRPC Connection
      • Subscribing to Transactions
        • All Transactions of an address
        • Subscribing to all transactions of a Liquidity Pool
        • Subscribing to all transactions of multiple addresses
        • Subscribing to all transactions of a Token
      • Subscribing to Accounts
        • Account Updates for a Program
        • Account Updates for an Address
        • Account updates using memcmp
      • Streaming Blocks & BlocksMeta
        • Streaming Block Updates
        • Subscribing to BlocksMeta
      • Modifying & Unsubscribing
  • Solana defi data
    • DeFI APIs
      • Get Pool By Address
      • Get Pools By Token Pair
      • Get All Pools for a Token
      • Get Liquidity Details of a Pool
  • Callbacks
    • ☎️What are Callbacks?
      • Transaction Callbacks
      • Account Callbacks
    • 📔Callback APIs
      • Response Structure
      • List Callbacks
      • Register callback
      • Remove callback
      • 🔥Pause a callback
      • 🔥Resume a callback
      • Update Callbacks
      • Add Addresses
      • Remove addresses
  • Solana Super Indexers
    • 🌩️GraphQL APIs
      • Getting Started
      • Building Queries
      • Paginating Response
      • Applying Filters
      • Ordering and Sorting Data
    • 📀Case Studies
      • Tensor
        • Get Active Listings of a Wallet
        • Get Active Bids of a Wallet
        • Get Active Listings of a Collection
        • Get all Bids of a Collection
        • Get all Pools of a Margin Account
        • Get all Pools by Owner
      • Raydium
        • Get Pool By Address
        • Get Pools By Token Address
        • Get Pools Created Between Time
        • Get Pool Burn Percentage
        • Get Liquidity Details of a Pool
        • Get Pool and OpenBook Market Info
        • Get Token Supply Percentage In Pool
      • Orca Whirlpool
        • Get Pool by Address
        • Get Pool by Token Address
        • Get Positions for a Pool
        • Get Positions for a Wallet
        • Get Liquidity Details of a Pool
      • Kamino
        • Get Borrow Details of a Wallet
        • Get Deposit Details of a Wallet
        • Get Reserve Details
      • Cross Marketplace Queries
        • Get active listings across marketplaces for a wallet
        • Get listings for a collection across marketplaces
        • Get floor price of a collection
      • Cross Defi Queries
        • Fetch Liquidity Pools for Token
      • Native Staking
        • Get Stakes for a Wallet
        • Get Stakes For Validator
      • Governance/Realms
        • Get DAO Token Owners
        • Get Proposals For Governing Mint
        • Get All Proposals For DAO
        • Get DAO Treasury Info
        • Get All Active Proposals For Wallet
      • Meteora
        • Get All LB Position Pairs
        • Get Position of a User Wallet
        • Get Pool by Token Addresses
        • Get All Deposits for a User
        • Get All Withdraws for a User
        • Get All Fees Claimed by a User
        • Get All User Positions and Deposits for a Pool
        • Get All User Positions and Withdrawals for a Pool
      • Fluxbeam
        • Get Pool by Address
        • Get Pool by Token Addresses
      • Drift
        • Get User account for Delegate
        • Get User accounts based on authority
        • Get User details based on Referrer
        • Get Borrow/Deposit Amount for an User
        • Get PrepPositions for an User Account
        • Getting OrderId and userOrderId
        • Get OpenOrders for a User Account
      • 🔥Pumpswap
        • 🔥Get Pool by Address
        • 🔥Get Pool by Creator Address
        • 🔥Get Pools by Token Addresses
      • Raydium Launchpad
        • Get Bonding Curve Details by Pool Address
        • Get All Pools for a Creator
        • Get Pools by Token Addresses
        • Get Migration details of a Pool
  • Solana APIs
    • API Reference
    • Transactions
      • Parsed Transaction Structure
      • Transaction APIs
        • History
        • Parse Signature
        • Parse Multiple Signatures
        • Send
        • Send Multiple
    • NFT
      • 🔥Create Gasless
      • Create
      • Read All
      • Burn
      • 🔥Burn Multiple NFTs V2
      • Update
      • 🔥Create NFT from Metadata
      • 🔥Read Wallet Nfts
      • 🔥Read Selected NFTs
      • 🔥Get NFT Owners
      • 🔥Update NFT Metadata Uri
      • 🔥Update V2
      • Search
      • Transfer
      • Transfer Multiple NFTs
      • Mint
      • Read
    • Wallet
      • Get Balance
      • Get Token Balance
      • Get All Tokens Balance
      • Get Portfolio
      • Resolve Address
      • Get All Domains
      • Get Stake Accounts
    • Fungible Tokens
      • Create
      • Mint
      • Burn
      • 🔥Update
      • Get Token Info
      • Transfer
      • Airdrop
Powered by GitBook
On this page

Was this helpful?

  1. Yellowstone gRPC Network
  2. gRPC Docs
  3. Getting Started

Adding a Reconnection Mechanism

Reconnection mechanism for your gRPC production Application

PreviousMaking a gRPC connectionNextReplaying Slots with Solana yellowstone gRPCs

Last updated 12 days ago

Was this helpful?

Yellowstone gRPC is a powerful, production-ready tool for real-time Solana data. But in real-world conditions, network issues or server outages can cause connection drops. Without a reconnect strategy, your app might miss critical updates from the blockchain. A reliable reconnect system ensures your app stays connected and continues receiving live data, even during temporary interruptions.

You can paste this code in Replit to see it in action, or simply run the Repl .

import Client, {
  CommitmentLevel,
  SubscribeRequestAccountsDataSlice,
  SubscribeRequestFilterAccounts,
  SubscribeRequestFilterBlocks,
  SubscribeRequestFilterBlocksMeta,
  SubscribeRequestFilterEntry,
  SubscribeRequestFilterSlots,
  SubscribeRequestFilterTransactions,
} from "@triton-one/yellowstone-grpc";
import { SubscribeRequestPing } from "@triton-one/yellowstone-grpc/dist/grpc/geyser";

// Interface for the subscription request structure
interface SubscribeRequest {
  accounts: { [key: string]: SubscribeRequestFilterAccounts };
  slots: { [key: string]: SubscribeRequestFilterSlots };
  transactions: { [key: string]: SubscribeRequestFilterTransactions };
  transactionsStatus: { [key: string]: SubscribeRequestFilterTransactions };
  blocks: { [key: string]: SubscribeRequestFilterBlocks };
  blocksMeta: { [key: string]: SubscribeRequestFilterBlocksMeta };
  entry: { [key: string]: SubscribeRequestFilterEntry };
  commitment?: CommitmentLevel;
  accountsDataSlice: SubscribeRequestAccountsDataSlice[];
  ping?: SubscribeRequestPing;
}

const ADDRESS_TO_STREAM_FROM = "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P";

async function handleStream(client: Client, args: SubscribeRequest) {
  const stream = await client.subscribe();

  // Promise that resolves when the stream ends or errors out
  const streamClosed = new Promise<void>((resolve, reject) => {
    stream.on("error", (error) => {
      console.error("Stream error:", error);
      reject(error);
      stream.end();
    });

    stream.on("end", resolve);
    stream.on("close", resolve);
  });

  // Handle incoming transaction data
  stream.on("data", (data) => {
    if (data?.transaction) {
      console.log("Received Transaction:");
      console.log(data?.transaction);
    }
  });

  // Send the subscription request
  await new Promise<void>((resolve, reject) => {
    stream.write(args, (err: any) => {
      err ? reject(err) : resolve();
    });
  }).catch((err) => {
    console.error("Failed to send subscription request:", err);
    throw err;
  });

  // Wait for the stream to close
  await streamClosed;
}

/**
 * The reconnection mechanism is implemented on the handle stream function
 * If any error occurs, the stream will wait for 1000ms and call 
 * the handleStream function, which in-turn will restart the stream
 */
async function subscribeCommand(client: Client, args: SubscribeRequest) {
  while (true) {
    try {
      await handleStream(client, args);
    } catch (error) {
      console.error("Stream error, retrying in 1 second...", error);
      await new Promise((resolve) => setTimeout(resolve, 1000));
      // the timeout can be changed here
    }
  }
}

// Instantiate Yellowstone gRPC client with env credentials
const client = new Client(
  process.env.GRPC_URL, //Your Region specific gRPC URL
  process.env.X_TOKEN, // your Access Token
  undefined,
);

const req: SubscribeRequest = {
  accounts: {},
  slots: {},
  transactions: {
    pumpFun: {
      vote: false,
      failed: false,
      signature: undefined,
      accountInclude: [ADDRESS_TO_STREAM_FROM],
      accountExclude: [],
      accountRequired: [],
    },
  },
  transactionsStatus: {},
  blocks: {},
  blocksMeta: {},
  entry: {},
  accountsDataSlice: [],
  ping: undefined,
  commitment: CommitmentLevel.CONFIRMED,
};

subscribeCommand(client, req);

In the above example, if the stream is interrupted, we restart it after waiting for 1000ms. This time can be configured as per your requirement.

The complete code of implementing a reconnection mechanism is available on and .

⚡
code here
GitHub
Replit here