Explore Philand
  • Welcome to Phi
    • 🏝️What's Phi?
    • 🌄Mission
    • 🏃‍♀️Story
    • 🏄Phi Crew
  • ⚡Products
    • 🏝️Phi Land
      • 🔦User Guide for Phi Land
        • 0️⃣Before Playing Phi
          • 🦊Download a Crypto Wallet
          • 🟣Get $MATIC
          • 🔷Get an ENS Domain
        • 1️⃣Access Phi Land
        • 2️⃣Create your Phi Land
        • 3️⃣Claim Quest Objects
        • 4️⃣Purchase Items on Shop
        • 5️⃣Deposit Objects to Land
        • 6️⃣Build your land
        • 7️⃣Share your land on Twitter
      • 🎧Phi Music
      • ⛓️Hyperlinks & Link List
      • 💫Transferring Land
      • ↔️Phi Connect
    • ⚔️Phi Quest
      • 🔦User Guide for Phi Quest
        • 0️⃣Before Playing Phi
          • 🦊Download a Crypto Wallet
          • 🟣Get $MATIC
        • 1️⃣Access Phi Quest
        • 2️⃣Claim Quest Objects
          • Quest List
          • Adventure
          • Campaign
        • 3️⃣Purchase Items on Shop
        • 4️⃣Play Phi Land with Items you got
      • 🧑Account
      • 🏅Active Score Rank Quests
    • 🍭Phi Opportunity (beta)
    • 💎Phi Material
      • ⚒️Phi Craft
      • 🥗UGC Craft
    • 🔮OpenSea Collection Links
    • 💡How-to's
      • 🏷️Mastering ENS (Ethereum Name Service)
        • How to Register an ENS Domain Name
        • How to Renew an ENS Domain Name
        • How to Manage ENS records
          • How to set up the Avatar record in ENS
            • Using MintYourPFP to set an Avatar to an ENS name
        • How to Transfer ENS to Another Wallet
        • How to set up an ENS Subdomain
    • ❓FAQ
      • Must I have an ENS to play Phi Quest?
      • How can I get an ENS domain?
      • Why don't my ENS domains show up?
      • Can I use ENS subdomains for Phi Land?
      • What happens when I transfer ENS?
      • I can't create a land
      • Why cannot access to my land?
      • Why can't I change the baseplate?
      • Why can’t I claim Quest objects?
      • Any rewards for participating in Testnet?
      • What is Phi Quest?
      • How the Leaderboard on Phi Quest is calculated?
      • Why are there two EXPs?
      • I claimed objects on Phi Quest. How can I create my Phi Land?
      • Why can’t I see my objects in my wallet?
      • Can I trade Quest Objects?
      • Are traded objects included in my EXP calculation?
      • My EXP not showing, leaderboard not updating
      • Which browser should I use?
      • Which devices are supported?
      • How to update my Twitter OGP image (card)?
    • 📬Submit Feedback
      • Bug Report
      • Feature Request
      • User Survey
  • ⚙️DEVELOPERS
    • 🪴Create Philand
    • 🎨Objects NFT
      • ⛓️Quest Object
      • 🌾Free Object
      • 🧊Premium Object
      • 🍰Baseplate Object
      • 🧮Wallpaper Object
      • 💄Other Topics
      • 💡Appendix
    • 🛠️Use PhiMap
      • 🗺️Deposit/Withdraw
      • 🍧Save Philand
      • 👀View Function
      • 💡Appendix
    • 💝Philand API
      • ⌚Introduction
      • 🔑Authentication
        • 😄Use API key
        • 😍Get Access Token
        • 🤩Verify Access Token
        • 🤪Get Refresh Token
        • 😎Refresh JWT
      • 🫔Quest
        • 🎾Get Quest List
        • 🏀Get Quest Status
        • ⚽Trigger Eligible Check
        • 🎯Get Claimed Status
        • 🏓Get Verify Coupon
      • 🏝️Philand
        • 🫑View Philand Link
        • 🍍Get Philand Image
      • 🧸Account
        • 🍞Get Philand List
        • 👑Get PhiRank
      • 🎺Object
        • 🎸Get Object Info
      • 🦖Example Call
        • 🤠Quest Claim
      • 👔Related Links
    • 🧑‍🏫How to Verify your transaction
      • 👓Read Contract Method
      • 🚩Third-party API
      • 🦷Whitelist
    • 📄Contracts
      • 👮Audit
  • 💼Career
    • 👯Phi is hiring
  • 🔗Official links
    • Website
    • Twitter
    • Discord
    • Discourse
    • Medium
    • Github
    • Guild.xyz
    • Lenster
    • Instagram
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On this page
  • - Swap Count on Uniswap (Etherscan API)
  • - Uniswap V2 User Quest
  • Snapshot Voting Quest

Was this helpful?

  1. DEVELOPERS
  2. How to Verify your transaction

Third-party API

Using a third-party API to verify the users information.

PreviousRead Contract MethodNextWhitelist

Last updated 2 years ago

Was this helpful?

In some verifications, we use api third-party api to verify the user's address. (Ex. Etherscan API, graph protocol API, Opensea.)

- Swap Count on Uniswap (Etherscan API)

We set up a simple verification system in the form of AWS CDK. If you are interested, please check it out.

- Uniswap V2 User Quest

In the case of Uniswap V2, we use graph protocol API and check whether user swap befero 1380481 or not.

import axios from "axios";
import { getProviderForNetwork } from "../../helpers/phiUtils";

/* -------------------------------- NETWORK -------------------------------- */
// number of the block you want to get timestamp of
const NETWORK = "homestead";
const blockNumber = 13804681;
/* ------------------------------------------------------------------------- */
type Swap = {
  id: number;
  timestamp: number;
  sender: string;
};

type APIResponse = {
  data: {
    swaps: Swap[];
  };
};
/* ------------------------------------------------------------------------- */
const endpoint = "https://api.thegraph.com/subgraphs/name/uniswap/uniswap-v2";
/* ------------------------------------------------------------------------- */
let provider: any;
// value is condition of count 
export async function verify(address: string, value: number): Promise<[boolean, number]> {
  if (!provider) {
    provider = await getProviderForNetwork(NETWORK);
  }
  const timestamp = (await provider.getBlock(blockNumber)).timestamp;

  const query = `
    query {
      swaps (
        where: {
          timestamp_lte: "${timestamp}", to: "${address}"
        }
      ) {
        id
        timestamp
        to
      }
    }
    `;
  const result = await axios.post<APIResponse>(endpoint, { query });
  const swapsLength = result.data.data.swaps.length;
 
 //if true, user get coupon
  if (swapsLength >= value) {
    return [true, swapsLength];
  } else {
    return [false, swapsLength];
  }
}

Snapshot Voting Quest

In the case of Snaphot, we use snapshot graph api and check count of votes.

const endpoint = "https://hub.snapshot.org/graphql";
const query = `
    query Votes {
      votes (
        first: ${value}
        skip: 0
        where: {
          voter: "${address}"
        }
      ) {
        id
        voter
      }
    }
    `;
const result = await retryableApiPost<APIResponse>(endpoint, { query });
  counter = result.data.votes.length;
  
// if true, user get coupon
  if (counter >= value) {
    return [true, counter];
  } else {
    return [false, counter];
  }
⚙️
🧑‍🏫
🚩
https://github.com/PHI-LABS-INC/cdk-verify-templategithub.com
github-verify-template