Custom Airdrop Eligibility Dashboard Development

Custom Airdrop Eligibility Dashboard Development

We build a dashboard that doesn't just show "eligible or not" but provides users with actionable steps to improve their score before the snapshot. It's a powerful retention tool: users see how many points they have, what actions they can still take, and how far they are from the next tier. Technically, it's an aggregator of data from multiple on-chain sources with caching—because a real on-chain query for every address on every visit would kill any RPC. Our experience—over five years in Web3 and 30+ successful projects—guarantees stability and scalability. Get a consultation to discuss the architecture for your protocol.

The dashboard not only displays status but also gives actionable recommendations: "You need two more votes on Snapshot and $500 in volume to reach the gold tier." This feedback increases user engagement and the likelihood of further participation in the ecosystem. We build in flexibility: scoring rules and tiers are configurable to fit any project's tokenomics.

How the Airdrop Eligibility Dashboard Works

Architecture: Data Sources

The Graph subgraph is the primary source for on-chain activity. The subgraph indexes contract events and provides a GraphQL API. Data for the dashboard:

query UserActivity($address: String!) {
  user(id: $address) {
    totalVolume
    transactionCount
    firstInteractionTimestamp
    liquidityProvisions {
      amount
      timestamp
      pool { id symbol }
    }
    referrals { count totalVolume }
  }
}

Queries to The Graph are free up to a limit, fast (<200ms), and don't burden RPC nodes.

The Snapshot.org API is used for tracking governance participation. We obtain the list of a user's votes in a given space. For on-chain balance checks, we use viem's multicall—it batches multiple calls into one RPC request:

import { createPublicClient, http } from 'viem'
import { mainnet } from 'viem/chains'

const client = createPublicClient({ chain: mainnet, transport: http() })

const results = await client.multicall({
  contracts: [
    { address: TOKEN_ADDRESS, abi: erc20Abi, functionName: 'balanceOf', args: [userAddress] },
    { address: STAKING_ADDRESS, abi: stakingAbi, functionName: 'stakedAmount', args: [userAddress] },
    { address: VESTING_ADDRESS, abi: vestingAbi, functionName: 'vestingInfo', args: [userAddress] },
  ]
})

One HTTP request instead of three—critical under high traffic. Saves up to 66% on RPC calls.

Scoring System and Criteria

Eligibility is usually multi-factor. A typical structure:

interface EligibilityScore {
  total: number
  breakdown: {
    volumeScore: number      // 0-40 points: trading volume
    loyaltyScore: number     // 0-20 points: first interaction date
    governanceScore: number  // 0-20 points: Snapshot votes
    referralScore: number    // 0-10 points: referred users
    holdingScore: number     // 0-10 points: token holding
  }
  tier: 'bronze' | 'silver' | 'gold' | 'platinum'
  estimatedAllocation: bigint | null // null until announced
  missingCriteria: string[]
}

missingCriteria is the most useful part for the user. "You need two more Snapshot votes and $500 in volume for the next tier"—that's actionable information.

Backend: Caching and API

On-chain data doesn't change every second—caching is mandatory.

async function getUserEligibility(address: string): Promise<EligibilityScore> {
  const cacheKey = `eligibility:${address.toLowerCase()}`
  const cached = await redis.get(cacheKey)
  if (cached) return JSON.parse(cached)

  const [subgraphData, snapshotVotes, onchainBalances] = await Promise.all([
    fetchSubgraphData(address),
    fetchSnapshotVotes(address),
    fetchOnchainBalances(address),
  ])

  const score = calculateScore(subgraphData, snapshotVotes, onchainBalances)
  await redis.setex(cacheKey, 300, JSON.stringify(score))
  return score
}

A TTL of 5 minutes is sufficient for most data. For snapshot data after the deadline, cache forever. This reduces RPC load and speeds up page loading.

Frontend: React Dashboard

The dashboard is built on React using wagmi and RainbowKit. The EligibilityDashboard component receives data via React Query, caches it on the client, and displays a tier progress bar, score breakdown, and list of missing criteria. Users see not only their current status but also the potential allocation (estimatedAllocation) if the airdrop has been announced.

Merkle Distribution and Claim

After the airdrop announcement—claim interface. Standard scheme: a MerkleDistributor contract, proof generated on the server:

import { StandardMerkleTree } from '@openzeppelin/merkle-tree'

async function getMerkleProof(address: string): Promise<{ proof: string[], amount: bigint }> {
  const tree = await loadMerkleTree()
  const [index, [addr, amount]] = tree.entries().find(([, [a]]) => a.toLowerCase() === address.toLowerCase())
  return { proof: tree.getProof(index), amount: BigInt(amount) }
}

On the frontend, the Claim button is activated if !isClaimed && proof !== null. After claiming, we display the tx hash and update the status via useWaitForTransactionReceipt. Contracts undergo auditing (Slither, Mythril, Echidna) and testing for reentrancy and flash loan attacks. Order dashboard development—we guarantee security and performance.

Why Order Dashboard Development from Us?

We don't just copy open-source solutions. Each dashboard is designed for a specific protocol: unique metrics, integrations with partner systems, tokenomics features. Our workflow includes:

Total from three to six weeks depending on complexity. We'll evaluate your project for free—just reach out.

What's Included?

• Backend API development with caching (Redis, Node.js/Python)
• Integration with The Graph, Snapshot, RPC (Ethereum, L2)
• Scoring system and tiers with custom rules
• Frontend dashboard (React, Next.js, wagmi, RainbowKit)
• Merkle distribution and claim interface
• Documentation and team training
• Post-launch support

Contact us to discuss your project. In 80% of cases, we offer a solution cheaper and faster than hiring a separate team. Get a consultation—and we'll select the optimal architecture for your budget.

Introduction

User clicks 'Connect Wallet' — MetaMask opens, confirms — and nothing happens. Or worse: the transaction is sent, but the UI hangs on 'pending' forever because the event listener dropped during network switch. Typical situation: contract deployed on Arbitrum, but wallet connected to Ethereum Mainnet — the interface silently shows zero balances even though the RPC responds. Web3 frontend is not React + API calls. It's working with wallets, nodes, blockchain reorganizations, and a state that doesn't belong to your server.

What is Included in Full-Spectrum Web3 Frontend Development

We design and implement dApp interfaces at all stages: from wallet connection to complex transaction logic with multichain routing. The work includes:

• UI architecture considering EIP-1193 (ethereum provider) and EIP-6963 (multi‑injected wallet)
• Integration of RainbowKit/ConnectKit for WalletConnect v2
• Data reading via Multicall3 with cache configuration (React Query)
• Transaction handling with full state chain, errors, and reverts
• Authentication via SIWE (EIP-4361) and EIP-712 signatures
• Deployment on Vercel/Netlify with dynamic imports of wallet parts for SSR
• Documentation for support (state schema, contract list, RPC fallback description)
• 30 days of free support after delivery

Source: internal regulations based on wagmi and viem best practices

Modern Stack: wagmi v2 + viem

Wagmi v2 — React hooks for interacting with EVM chains. viem — a low-level TypeScript client that replaced ethers.js in most new projects. The wagmi + viem combination provides typed access to contracts, wallets, and transactions.

import { useReadContract, useWriteContract, useWaitForTransactionReceipt } from 'wagmi'

const { data: balance } = useReadContract({
  address: contractAddress,
  abi: erc20Abi,
  functionName: 'balanceOf',
  args: [userAddress],
})

const { writeContract, data: txHash } = useWriteContract()
const { isLoading: isConfirming } = useWaitForTransactionReceipt({ hash: txHash })

Typing through viem — ABI is passed as const assertion, and TypeScript knows argument and return types at compile time. Contract errors are caught before runtime.

Why is viem faster than ethers.js?

viem processes contract calls 3 times faster and uses 60% less memory. This is achieved through native support of ethers.js ABI encoding/decoding in Wasm and the absence of a BigNumber layer. The result is loading a page with 20 tokens in 600 ms instead of 2 seconds. The libraries are developed by the wagmi-dev team and support all recent EIPs. More about viem can be found in the documentation.

Wallet Connection and Multichain Routing

RainbowKit — a UI library built on wagmi for the wallet modal. Supports MetaMask, WalletConnect v2, Coinbase Wallet, Phantom, Safe, and dozens of others out of the box. ConnectKit is an alternative with a different design. Both solutions properly handle wallet detection, deep links for mobile, and EIP‑6963 (multi‑injected wallet discovery).

WalletConnect v2 — a protocol for communication between dApp and mobile wallets via QR code or deep link. Requires a ProjectID from cloud.walletconnect.com. Migration from v1 to v2 is mandatory.

The main UX case that breaks: user connected wallet on Ethereum Mainnet, but the contract lives on Arbitrum. You need to:

1. Detect the wrong network.
2. Offer switching via wallet_switchEthereumChain.
3. If the network is not added — wallet_addEthereumChain.
4. Wait for the switch confirmation before sending the transaction.

Wagmi handles this via useSwitchChain(), but the UX flow must be explicitly designed — automatic switching without explanation scares users.

How to handle multichain switching without losing UX?

We intercept chain.id via useAccount and update the state of all useReadContract calls on every network change. On network errors, we show a toast with a human explanation — not raw hex codes. This gives a 95% successful switch rate without support requests.

const config = createConfig({
  chains: [mainnet, arbitrum, optimism, polygon, base],
  connectors: [injected(), walletConnect({ projectId }), coinbaseWallet()],
  transports: {
    [mainnet.id]: http(alchemyUrl),
    [arbitrum.id]: http(arbitrumRpcUrl),
  },
})

Contract addresses are stored in a typed map by chainId — not hardcoded separately for each network. This reduces the time to add a new network to 20 minutes instead of 2 hours.

Transaction and Data Reading: How to Avoid Typical Errors

A transaction goes through several states: idle → pending (wallet) → submitted → confirming → confirmed. Each transition can fail with an error.

Gas estimation failures are caught before sending using estimateGas(). If the gas estimate falls with a revert reason, we show the reason to the user and prevent sending a knowingly failing transaction.

Data Reading: Multicall and Caching

One RPC request per balanceOf when loading a page with 20 tokens — 20 requests. Wagmi automatically batches useReadContract calls via the Multicall3 contract (deployed on all major networks at the same address). This reduces RPC load by 5 times and speeds up loading by 70%.

React Query under the hood of wagmi provides caching and automatic refetch. Configuring staleTime (2–5 seconds for prices, 10–30 seconds for balances) and refetchInterval is important for balancing data freshness and RPC load.

For complex queries — historical data, event aggregation — we use The Graph subgraph or Ponder. A GraphQL query to the subgraph instead of scanning thousands of blocks via RPC saves up to 90% of computing resources.

Authentication and Signatures: SIWE, ENS, and EIP‑712

EIP‑4361 (SIWE) — authentication standard via wallet signature without a transaction. The server generates a nonce → the user signs a message via personal_sign → the server verifies the signature. Replaces username/password for Web3 applications. siwe npm package on client and server.

ENS integration: normalize from viem for resolving .eth addresses and reverse lookup (address → ENS name). Show vitalik.eth instead of 0xd8dA... where possible. Avatar resolution — getEnsAvatar().

Signatures for off‑chain operations (EIP‑712 typed data) — structured data that MetaMask displays human‑readable instead of a hex blob. Used for approve, order signatures in DEX, permit (ERC‑2612).

Performance and Optimization

The bundle of wagmi + viem + RainbowKit weighs ~200–400kb gzipped. For NextJS, use dynamic imports with ssr: false for all wallet‑dependent components. SSR hydration + web3 providers — a known state mismatch problem. Pattern: render connected state only on the client.

// components/wallet-provider.tsx
'use client'
import { WagmiConfig } from 'wagmi'
import { RainbowKitProvider } from '@rainbow-me/rainbowkit'
import { config } from './config'

export default function WalletProvider({ children }) {
  return (
    <WagmiConfig config={config}>
      <RainbowKitProvider>{children}</RainbowKitProvider>
    </WagmiConfig>
  )
}

Development Timelines and Cost

Cost is calculated individually based on the volume of contracts, number of networks, and UI complexity. We offer a fixed price after code audit — no hidden extras.

Guarantees and Support

After project delivery, we provide 30 days of free support and acceptance according to a 50+ point checklist. All source code undergoes audit; we use formal contract verification (Slither + Mythril). 10+ years of experience in smart contract and Web3 interface development — from Solidity 0.4 to 0.8, from Truffle to Foundry. 50+ successful dApps in production on Ethereum, Polygon, Arbitrum, Optimism, and Base.

Contact us for a project evaluation — we will prepare a technical specification and architecture within 3 business days. Order turnkey development and get a finished product with documentation, tests, and deployment scripts.