SendTransaction - Documentation

sendTransaction RPC Method

Submits a signed transaction to the cluster for processing.

Method Behavior

Relays the transaction to the node exactly as created by clients
Immediate success means the RPC service received the transaction
Success does NOT guarantee transaction processing or confirmation
Transaction could be rejected if recent_blockhash expires

Preflight Checks

Before submission, the following checks are performed:

Verify transaction signatures
Simulate transaction against bank slot specified by preflight commitment

Parameters

string required
Fully-signed Transaction

Encoded as a string

object optional
Configuration object with the following fields:encoding string

Default: base58
Encoding for transaction data

Allowed Encoding Values:

base58 (slow, DEPRECATED)
base64

skipPreflight bool

Default: false
When true, skips preflight transaction checks

preflightCommitment string

Default: finalized
Commitment level for preflight checks

maxRetries usize

Maximum RPC node retries for sending transaction
If not provided, retries until finalized or blockhash expires

minContextSlot number

Minimum slot for performing preflight checks

Code Sample

curl https://rpc.testnet.soo.network/rpc \
-X POST \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sendTransaction",
  "params": [
    "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=",
    {
      "skipPreflight": false,
      "preflightCommitment": "finalized",
      "encoding": "base64",
      "maxRetries": 3
    }
  ]
}'

Response

{
  "jsonrpc": "2.0",
  "result": "5ThJTCxpdn54bk3gBAWKZS4K9ogHEX56WooYbXQDnm3Q",
  "id": 1
}

Result Details

<string> - Transaction Signature
- First signature embedded in the transaction
- Base-58 encoded string
- Used as the transaction identifier

Important Notes

Recommended to use getSignatureStatuses to confirm transaction processing
Specify consistent commitment levels to avoid unexpected behavior
Transaction signatures can be extracted before submission

​sendTransaction RPC Method

​Method Behavior

​Preflight Checks

​Parameters

​Code Sample

​Response

​Result Details

​Important Notes