getTokenLargestAccounts

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Параметры

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Ответ

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Примеры кода

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Базовый запрос

curl https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY -X POST -H "Content-Type: application/json" -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getTokenLargestAccounts",
  "params": [
    "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    {
      "limit": 10
    }
  ]
}'

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Использование web3.js

import { Connection, PublicKey } from '@solana/web3.js';

const connection = new Connection('https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY');

// Get largest token accounts
const mint = new PublicKey('EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v');
const accounts = await connection.getTokenLargestAccounts(mint, { limit: 10 });
console.log('Largest token accounts:', accounts);

// Get largest token accounts with analysis
async function getTokenLargestAccountsWithAnalysis(
  mint: PublicKey,
  config: { limit?: number; commitment?: string }
) {
  const accounts = await connection.getTokenLargestAccounts(mint, config);
  
  return {
    accounts,
    analysis: {
      totalAccounts: accounts.value.length,
      totalSupply: accounts.value.reduce((sum, acc) => {
        const amount = BigInt(acc.amount);
        return sum + amount;
      }, BigInt(0)),
      distribution: accounts.value.reduce((acc, account, index) => {
        const amount = BigInt(account.amount);
        const percentage = Number((amount * BigInt(100)) / BigInt(accounts.value[0].amount));
        acc[account.address] = {
          amount: account.amount,
          percentage,
          rank: index + 1
        };
        return acc;
      }, {} as Record<string, {
        amount: string;
        percentage: number;
        rank: number;
      }>),
      metadata: {
        timestamp: Date.now(),
        commitment: config.commitment
      }
    }
  };
}

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Примечания

1. Возвращает крупнейшие токеновые счета для заданного монетного двора
2. Счета отсортированы по балансу в порядке убывания
3. Ответ приходит немедленно, так как читается из текущего состояния
4. Счета могут изменяться при переводах токенов и других операциях
5. Монетный двор должен быть действительным токеновым монетным двором

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Рекомендации

1. Используйте подходящий уровень подтверждения в зависимости от ваших потребностей
2. Кэшируйте результаты там, где это уместно, для снижения нагрузки на RPC
3. Отслеживайте изменения в крупнейших счетах
4. Рассмотрите использование подписки на websocket для обновлений в реальном времени
5. Обрабатывайте сетевые ошибки и выполняйте повторные попытки при необходимости

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Распространённые ошибки

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Сценарии использования

1. Анализ распределения токенов
   interface TokenDistributionAnalysis {
     mint: string;
     accounts: Array<{
       address: string;
       amount: string;
       percentage: number;
       rank: number;
     }>;
     metrics: {
       totalAccounts: number;
       totalSupply: string;
       concentration: number; // Gini coefficient
       top10Percentage: number;
     };
     metadata: {
       timestamp: number;
       commitment?: string;
     };
   }
   
   class TokenDistributionAnalyzer {
     private calculateGiniCoefficient(amounts: bigint[]): number {
       const n = amounts.length;
       const mean = amounts.reduce((sum, x) => sum + x, BigInt(0)) / BigInt(n);
       let numerator = BigInt(0);
       let denominator = BigInt(0);
       
       for (let i = 0; i < n; i++) {
         for (let j = 0; j < n; j++) {
           numerator += (amounts[i] - amounts[j]).abs();
         }
         denominator += amounts[i];
       }
       
       return Number(numerator) / (2 * n * Number(denominator));
     }
     
     async analyzeTokenDistribution(
       mint: PublicKey,
       config: { limit?: number; commitment?: string }
     ): Promise<TokenDistributionAnalysis> {
       const accounts = await connection.getTokenLargestAccounts(mint, config);
       const amounts = accounts.value.map(acc => BigInt(acc.amount));
       const totalSupply = amounts.reduce((sum, x) => sum + x, BigInt(0));
       const top10Supply = amounts.slice(0, 10).reduce((sum, x) => sum + x, BigInt(0));
       
       return {
         mint: mint.toBase58(),
         accounts: accounts.value.map((account, index) => ({
           address: account.address,
           amount: account.amount,
           percentage: Number((BigInt(account.amount) * BigInt(100)) / totalSupply),
           rank: index + 1
         })),
         metrics: {
           totalAccounts: accounts.value.length,
           totalSupply: totalSupply.toString(),
           concentration: this.calculateGiniCoefficient(amounts),
           top10Percentage: Number((top10Supply * BigInt(100)) / totalSupply)
         },
         metadata: {
           timestamp: Date.now(),
           commitment: config.commitment
         }
       };
     }
   }
   
2. Мониторинг крупных держателей токенов
   interface TokenHolderChange {
     mint: string;
     changes: Array<{
       type: 'added' | 'removed' | 'modified';
       address: string;
       previousAmount?: string;
       currentAmount?: string;
       previousRank?: number;
       currentRank?: number;
     }>;
     metadata: {
       timestamp: number;
     };
   }
   
   class TokenHolderMonitor {
     private previousHolders: Map<string, {
       amount: string;
       rank: number;
     }> = new Map();
     
     async monitorTokenHolders(
       mint: PublicKey,
       config: { limit?: number; commitment?: string }
     ): Promise<TokenHolderChange | null> {
       const accounts = await connection.getTokenLargestAccounts(mint, config);
       const currentHolders = new Map(
         accounts.value.map((account, index) => [
           account.address,
           {
             amount: account.amount,
             rank: index + 1
           }
         ])
       );
       
       const changes: Array<{
         type: 'added' | 'removed' | 'modified';
         address: string;
         previousAmount?: string;
         currentAmount?: string;
         previousRank?: number;
         currentRank?: number;
       }> = [];
       
       // Check for removed or modified holders
       this.previousHolders.forEach((data, address) => {
         if (!currentHolders.has(address)) {
           changes.push({
             type: 'removed',
             address,
             previousAmount: data.amount,
             previousRank: data.rank
           });
         } else {
           const current = currentHolders.get(address)!;
           if (current.amount !== data.amount || current.rank !== data.rank) {
             changes.push({
               type: 'modified',
               address,
               previousAmount: data.amount,
               currentAmount: current.amount,
               previousRank: data.rank,
               currentRank: current.rank
             });
           }
         }
       });
       
       // Check for added holders
       currentHolders.forEach((data, address) => {
         if (!this.previousHolders.has(address)) {
           changes.push({
             type: 'added',
             address,
             currentAmount: data.amount,
             currentRank: data.rank
           });
         }
       });
       
       this.previousHolders = currentHolders;
       
       if (changes.length > 0) {
         return {
           mint: mint.toBase58(),
           changes,
           metadata: {
             timestamp: Date.now()
           }
         };
       }
       
       return null;
     }
   }
   
3. Планирование предложения токенов
   interface TokenSupplyPlan {
     mint: string;
     currentHolders: Array<{
       address: string;
       amount: string;
       rank: number;
     }>;
     recommendations: Array<{
       type: 'diversify' | 'consolidate' | 'rebalance';
       addresses: string[];
       reason: string;
     }>;
     metadata: {
       timestamp: number;
     };
   }
   
   class TokenSupplyPlanner {
     private readonly maxConcentration = 0.5; // Maximum allowed concentration
     private readonly minHolders = 100; // Minimum number of holders
     
     async planTokenSupply(
       mint: PublicKey,
       config: { limit?: number; commitment?: string }
     ): Promise<TokenSupplyPlan> {
       const accounts = await connection.getTokenLargestAccounts(mint, config);
       const amounts = accounts.value.map(acc => BigInt(acc.amount));
       const totalSupply = amounts.reduce((sum, x) => sum + x, BigInt(0));
       
       const recommendations: Array<{
         type: 'diversify' | 'consolidate' | 'rebalance';
         addresses: string[];
         reason: string;
       }> = [];
       
       // Check for concentration
       const top10Supply = amounts.slice(0, 10).reduce((sum, x) => sum + x, BigInt(0));
       const concentration = Number((top10Supply * BigInt(100)) / totalSupply) / 100;
       
       if (concentration > this.maxConcentration) {
         recommendations.push({
           type: 'diversify',
           addresses: accounts.value.slice(0, 10).map(acc => acc.address),
           reason: `Top 10 holders control ${(concentration * 100).toFixed(2)}% of supply`
         });
       }
       
       // Check for minimum holders
       if (accounts.value.length < this.minHolders) {
         recommendations.push({
           type: 'diversify',
           addresses: accounts.value.map(acc => acc.address),
           reason: `Only ${accounts.value.length} holders, below minimum of ${this.minHolders}`
         });
       }
       
       return {
         mint: mint.toBase58(),
         currentHolders: accounts.value.map((account, index) => ({
           address: account.address,
           amount: account.amount,
           rank: index + 1
         })),
         recommendations,
         metadata: {
           timestamp: Date.now()
         }
       };
     }
   }