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eth_getTransactionByBlockNumberAndIndex

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eth_getTransactionByBlockNumberAndIndex returns a single transaction object selected by two coordinates: the block (by number or block tag) and the transaction's zero-based index within that block. Both the block number and the index are 0x-prefixed hexadecimal strings.

Use it when you already know a transaction's position in a block — for example when iterating a block's transactions one at a time, when you have the index from a prior eth_getBlockByNumber call, or when reconstructing a block body without fetching every transaction at once. If you have the block hash rather than its number, use the sibling method eth_getTransactionByBlockHashAndIndex. If you have the transaction hash directly, use eth_getTransactionByHash.

If the block does not exist, or the index is out of range for that block, the result is null rather than an error.

Parameters

This method takes no parameters.

Returns

eth_getTransactionByBlockNumberAndIndex return value
FieldType
resultobject

Examples

curl https://triport.io/eth \
  -X POST -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <api-key>' \
  -d '{"id":1,"method":"eth_getTransactionByBlockNumberAndIndex","params":[],"jsonrpc":"2.0"}'
const res = await fetch("https://triport.io/eth", {
  method: "POST",
  headers: { "Content-Type": "application/json", Authorization: "Bearer <api-key>" },
  body: JSON.stringify({
  "id": 1,
  "method": "eth_getTransactionByBlockNumberAndIndex",
  "params": [],
  "jsonrpc": "2.0"
}),
});
const data = await res.json();
import requests
resp = requests.post(
    "https://triport.io/eth",
    headers={"Authorization": "Bearer <api-key>"},
    json={"id":1,"method":"eth_getTransactionByBlockNumberAndIndex","params":[],"jsonrpc":"2.0"},
)
print(resp.json())

Usage

  1. Transport: HTTP (JSON-RPC).
  2. Networks: mainnet.
  3. Credit cost: 1 per call.

FAQ

What does eth_getTransactionByBlockNumberAndIndex do?
Returns the transaction at a given position within the block identified by its number or a block tag.
How many credits does eth_getTransactionByBlockNumberAndIndex cost?
eth_getTransactionByBlockNumberAndIndex costs 1 credit(s) per call on Triport by default.
Is eth_getTransactionByBlockNumberAndIndex available over WebSocket?
eth_getTransactionByBlockNumberAndIndex is an HTTP JSON-RPC method.