sendTransaction

​

Parameters

​

Response

​

Code Examples

​

Basic Request

curl https://rpc.orbitflare.com -X POST -H "Content-Type: application/json" -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sendTransaction",
  "params": [
    "4hXTCkRzt9WyecNzV1XPgCDfGAZzQKNxLXgynz5QDuWWPSAZBZSHptvWRL3BjCvzUXRdKvHL2b7yGrRQcWyaqsaBCncVG7BFggS8w9snUts67BSh3EqKpXLUm5UMHfD7ZBe9GhARjbNQMLJ1QD3Spr6oMTFNhyKNMr3WNFCrXgDS7uV7u",
    {
      "encoding": "base64",
      "commitment": "confirmed"
    }
  ]
}'

​

Using web3.js

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

const connection = new Connection('https://rpc.orbitflare.com');

// Create and send transaction
const transaction = new Transaction().add(
  SystemProgram.transfer({
    fromPubkey: new PublicKey('83astBRguLMdt2h5U1Tpdq5tjFoJ6noeGwaY3mDLVcri'),
    toPubkey: new PublicKey('J7rBdM6AecPDEZp8aPq5tPmsPzPhQG4HD6YtAcQBDfJj'),
    lamports: 1000000000
  })
);

const signature = await connection.sendTransaction(transaction, [signer]);
console.log('Transaction signature:', signature);

// Send transaction with confirmation
async function sendTransactionWithConfirmation(
  transaction: Transaction,
  signers: Array<Signer>,
  config: { 
    commitment?: string;
    preflightCommitment?: string;
    skipPreflight?: boolean;
    maxRetries?: number;
  }
) {
  const signature = await connection.sendTransaction(
    transaction,
    signers,
    config
  );
  
  // Wait for confirmation
  const confirmation = await connection.confirmTransaction(signature, config.commitment);
  
  return {
    signature,
    confirmation: {
      status: confirmation.value.err ? 'failed' : 'success',
      slot: confirmation.context.slot
    },
    transaction: {
      recentBlockhash: transaction.recentBlockhash,
      feePayer: transaction.feePayer?.toBase58(),
      instructions: transaction.instructions.length
    },
    metadata: {
      timestamp: Date.now(),
      commitment: config.commitment
    }
  };
}

​

Notes

1. Submits a signed transaction to the cluster
2. The transaction must be fully signed
3. The response is the transaction signature
4. The transaction must be confirmed before changes are applied
5. The transaction must include a recent blockhash

​

Best Practices

1. Use appropriate commitment level based on your needs
2. Wait for transaction confirmation before proceeding
3. Handle rate limits and network errors
4. Monitor transaction status for failures
5. Consider using preflight checks for validation

​

Common Errors

​

Use Cases

1. Transaction Management
   Copy

   interface TransactionRequest {
     transaction: {
       signature: string;
       blockhash: string;
       feePayer: string;
       instructions: number;
     };
     status: {
       state: 'pending' | 'success' | 'failed';
       confirmations: number;
       slot?: number;
       error?: string;
     };
     metadata: {
       timestamp: number;
       commitment?: string;
       retries: number;
     };
   }
   
   class TransactionManager {
     private readonly maxRetries = 3;
     private readonly confirmationTimeout = 30000; // 30 seconds
     
     async sendTransaction(
       transaction: Transaction,
       signers: Array<Signer>,
       config: { 
         commitment?: string;
         preflightCommitment?: string;
         skipPreflight?: boolean;
       }
     ): Promise<TransactionRequest> {
       let retries = 0;
       let signature: string;
       
       while (retries < this.maxRetries) {
         try {
           // Get a new blockhash if retrying
           if (retries > 0) {
             const { blockhash } = await connection.getRecentBlockhash();
             transaction.recentBlockhash = blockhash;
           }
           
           signature = await connection.sendTransaction(
             transaction,
             signers,
             config
           );
           
           // Wait for confirmation
           const confirmation = await connection.confirmTransaction(signature, config.commitment);
           
           if (!confirmation.value.err) {
             return {
               transaction: {
                 signature,
                 blockhash: transaction.recentBlockhash,
                 feePayer: transaction.feePayer?.toBase58(),
                 instructions: transaction.instructions.length
               },
               status: {
                 state: 'success',
                 confirmations: 1,
                 slot: confirmation.context.slot
               },
               metadata: {
                 timestamp: Date.now(),
                 commitment: config.commitment,
                 retries
               }
             };
           }
           
           throw new Error(confirmation.value.err.toString());
         } catch (error) {
           retries++;
           if (retries === this.maxRetries) {
             return {
               transaction: {
                 signature,
                 blockhash: transaction.recentBlockhash,
                 feePayer: transaction.feePayer?.toBase58(),
                 instructions: transaction.instructions.length
               },
               status: {
                 state: 'failed',
                 confirmations: 0,
                 error: error.message
               },
               metadata: {
                 timestamp: Date.now(),
                 commitment: config.commitment,
                 retries
               }
             };
           }
           await new Promise(resolve => setTimeout(resolve, 1000));
         }
       }
     }
   }
   

2. Transaction Monitoring
   Copy

   interface TransactionStatus {
     transaction: {
       signature: string;
       slot?: number;
     };
     status: {
       confirmations: number;
       err: any;
     };
     history: Array<{
       timestamp: number;
       confirmations: number;
       error?: string;
     }>;
   }
   
   class TransactionMonitor {
     private transactions: Map<string, TransactionStatus> = new Map();
     
     async monitorTransaction(
       signature: string
     ): Promise<TransactionStatus> {
       let status = this.transactions.get(signature);
       const now = Date.now();
       
       const confirmation = await connection.getSignatureStatus(signature);
       
       if (!status) {
         status = {
           transaction: {
             signature,
             slot: confirmation?.slot
           },
           status: {
             confirmations: confirmation?.confirmations || 0,
             err: confirmation?.err
           },
           history: [{
             timestamp: now,
             confirmations: confirmation?.confirmations || 0,
             error: confirmation?.err?.toString()
           }]
         };
       } else {
         status.status.confirmations = confirmation?.confirmations || 0;
         status.status.err = confirmation?.err;
         status.history.push({
           timestamp: now,
           confirmations: confirmation?.confirmations || 0,
           error: confirmation?.err?.toString()
         });
       }
       
       this.transactions.set(signature, status);
       return status;
     }
   }
   

3. Transaction Planning
   Copy

   interface TransactionPlan {
     transaction: {
       instructions: number;
       signers: number;
       estimatedFee: number;
     };
     recommendations: Array<{
       type: 'proceed' | 'split' | 'abort';
       reason: string;
     }>;
     metadata: {
       timestamp: number;
     };
   }
   
   class TransactionPlanner {
     private readonly maxInstructions = 10;
     private readonly maxSigners = 8;
     
     async planTransaction(
       transaction: Transaction
     ): Promise<TransactionPlan> {
       const { feeCalculator } = await connection.getRecentBlockhash();
       const estimatedFee = feeCalculator.lamportsPerSignature * transaction.signatures.length;
       
       const recommendations: Array<{
         type: 'proceed' | 'split' | 'abort';
         reason: string;
       }> = [];
       
       if (transaction.instructions.length > this.maxInstructions) {
         recommendations.push({
           type: 'split',
           reason: `Transaction has ${transaction.instructions.length} instructions, exceeding maximum of ${this.maxInstructions}`
         });
       }
       
       if (transaction.signatures.length > this.maxSigners) {
         recommendations.push({
           type: 'split',
           reason: `Transaction has ${transaction.signatures.length} signers, exceeding maximum of ${this.maxSigners}`
         });
       }
       
       if (recommendations.length === 0) {
         recommendations.push({
           type: 'proceed',
           reason: 'Transaction is within limits'
         });
       }
       
       return {
         transaction: {
           instructions: transaction.instructions.length,
           signers: transaction.signatures.length,
           estimatedFee
         },
         recommendations,
         metadata: {
           timestamp: Date.now()
         }
       };
     }
     
     async splitTransaction(
       transaction: Transaction
     ): Promise<Array<{
       transaction: Transaction;
       signers: Array<PublicKey>;
     }>> {
       const chunks: Array<{
         transaction: Transaction;
         signers: Array<PublicKey>;
       }> = [];
       
       let currentChunk = new Transaction();
       let currentSigners: Array<PublicKey> = [];
       
       for (let i = 0; i < transaction.instructions.length; i++) {
         const instruction = transaction.instructions[i];
         
         if (currentChunk.instructions.length >= this.maxInstructions) {
           chunks.push({
             transaction: currentChunk,
             signers: currentSigners
           });
           
           currentChunk = new Transaction();
           currentSigners = [];
         }
         
         currentChunk.add(instruction);
         
         // Add unique signers
         instruction.keys
           .filter(key => key.isSigner)
           .forEach(key => {
             if (!currentSigners.find(signer => signer.equals(key.pubkey))) {
               currentSigners.push(key.pubkey);
             }
           });
       }
       
       if (currentChunk.instructions.length > 0) {
         chunks.push({
           transaction: currentChunk,
           signers: currentSigners
         });
       }
       
       return chunks;
     }
   }