Sending Transactions
This endpoint allows you to send a single transaction that will be distributed faster using the BDN.
Method: blxr_tx
Sending transactions via WebSocket instead of HTTP can lead to a latency improvement of up to 10ms.
Parameter | Description |
transaction | [Mandatory] Raw transactions bytes without 0x prefix. |
nonce_monitoring | [Optional, default: False] A boolean flag indicating if Tx Nonce Monitoring should be enabled for the transaction. This parameter only effects Cloud-API requests.
*Currently only available for users testing the Beta version, but will soon be available to all. |
blockchain_network | [Optional, default: Mainnet] Blockchain network name. Use with Cloud-API when working with BSC. Available options are: Mainnet for ETH Mainnet, BSC-Mainnet for BSC Mainnet, and Polygon-Mainnet for Polygon Mainnet. |
validators_only | [Optional, default: False] Support for semi private transactions in all networks. See section Semi-Private Transaction for more info. |
Cloud-API:
- The HTTPS POST endpoint is
https://api.blxrbdn.com. - The WebSocket endpoint for sending transactions is
wss://api.blxrbdn.com/ws. All users sending transactions via a WebSocket connection should use this endpoint.
Examples (Cloud-API)
HTTPS POST
wscat WS
Node.js WS
Python WS
golang WS
# ETH Example
curl https://api.blxrbdn.com \
-X POST \
-H "Content-Type: application/json" \
-H "Authorization: <YOUR-AUTHORIZATION-HEADER>" \
-d '{"method": "blxr_tx", "id": "1", "params": {"transaction": "f86b0184...e0b58219"}}'
# BSC Example
curl https://api.blxrbdn.com \
-X POST \
-H "Content-Type: application/json" \
-H "Authorization: <YOUR-AUTHORIZATION-HEADER>" \
-d '{"method": "blxr_tx", "id": "1", "params": {"transaction": "f86b0184...e0b58219",
"blockchain_network": "BSC-Mainnet"}}'
# ETH Example
wscat -c wss://api.blxrbdn.com/ws --header "Authorization: <YOUR-AUTHORIZATION-HEADER>"
> {"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params":
{"transaction": "f86b0184...e0b58219"}}
< ......
# BSC Example
wscat -c wss://api.blxrbdn.com/ws --header "Authorization: <YOUR-AUTHORIZATION-HEADER>"
> {"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params":
{"transaction": "f86b0184...e0b58219",
"blockchain_network": "BSC-Mainnet"}}
< ....
const WebSocket = require('ws');
const ws = new WebSocket(
"wss://api.blxrbdn.com/ws",
{
headers: {
"Authorization" : <YOUR-AUTHORIZATION-HEADER>
},
rejectUnauthorized: false,
}
);
function proceed() {
// ETH Example
ws.send(`{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219"}}`);
// BSC Example
// ws.send(`{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219", "blockchain_network": "BSC-Mainnet"}}`);
//
// or use a variable for the transaction string:
// rawTx = "f86b0184...e0b58219";
// ws.send(`{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "${rawTx}"}}`);
}
function handle(response) {
console.log(response.toString()); // or process it generally
}
ws.on('open', proceed);
ws.on('message', handle);
# Python 3.7 or higher required due to the use of asyncio.run()
import asyncio, json, ssl
from websocket import create_connection
async def main():
try:
ws = create_connection('wss://api.blxrbdn.com/ws',
header=["Authorization:{}".format("YOUR_AUTHORIZATION_HEADER")],
sslopt={"cert_reqs": ssl.CERT_NONE})
# ETH Example
request = json.dumps({"id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219"}})
# BSC Example
request = json.dumps({"id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219", "blockchain_network": "BSC-Mainnet"}})
ws.send(str(request))
while True:
response = json.loads(ws.recv())
print(response) # or process it generally
except Exception as e:
print(f'Connection failed, Reason: {e}')
if __name__ == '__main__':
asyncio.run(main()
package main
import (
"crypto/tls"
"fmt"
"github.com/gorilla/websocket"
"net/http"
)
func main() {
tlsConfig := &tls.Config{
InsecureSkipVerify: true,
}
dialer := websocket.DefaultDialer
dialer.TLSClientConfig = tlsConfig
wsSubscriber, _, err := dialer.Dial("wss://api.blxrbdn.com/ws", http.Header{"Authorization": []string{<YOUR-AUTHORIZATION-HEADER>}})
if err != nil {
fmt.Println(err)
return
}
// ETH Example
request := `{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219"}}`
// BSC Example
// request := `{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219", "blockchain_network": "BSC-Mainnet"}}`
err = wsSubscriber.WriteMessage(websocket.TextMessage, []byte(request))
if err != nil {
fmt.Println(err)
return
}
_, response, err := wsSubscriber.ReadMessage()
if err != nil {
fmt.Println(err)
}
fmt.Println(string(response)) // or process it generally
}
- Go-Gateway websocket endpoint:
ws://127.0.0.1:28333/ws - We assume the WebSocket port
28333.
wscat
Node.js
Python
golang
# ETH Example
wscat -c ws://127.0.0.1:28333/ws --header "Authorization: <YOUR-AUTHORIZATION-HEADER>"
> {"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params":
{"transaction": "f86b0184...e0b58219"}}
< ......
# BSC Example
wscat -c ws://127.0.0.1:28333/ws --header "Authorization: <YOUR-AUTHORIZATION-HEADER>"
> {"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params":
{"transaction": "f86b0184...e0b58219",
"blockchain_network": "BSC-Mainnet"}}
< ......
const WebSocket = require('ws');
const ws = new WebSocket(
"ws://127.0.0.1:28333/ws",
{
headers: {
"Authorization" : <YOUR-AUTHORIZATION-HEADER>
},
rejectUnauthorized: false,
}
);
function proceed() {
// ETH Example
ws.send(`{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219"}}`);
// BSC Example
// ws.send(`{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219", "blockchain_network": "BSC-Mainnet"}}`);
//
// or use a variable for the transaction string:
// rawTx = "f86b0184...e0b58219";
// ws.send(`{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "${rawTx}"}}`);
}
function handle(response) {
console.log(response.toString()); // or process it generally
}
ws.on('open', proceed);
ws.on('message', handle);
# Python 3.7 or higher required due to the use of asyncio.run()
import asyncio, json, ssl
from websocket import create_connection
async def main():
try:
ws = create_connection('ws://127.0.0.1:28333/ws',
header=["Authorization:{}".format("YOUR_AUTHORIZATION_HEADER")],
sslopt={"cert_reqs": ssl.CERT_NONE})
# ETH Example
request = json.dumps({"id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219"}})
# BSC Example
request = json.dumps({"id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219", "blockchain_network": "BSC-Mainnet"}})
ws.send(str(request))
while True:
response = json.loads(ws.recv())
print(response) # or process it generally
except Exception as e:
print(f'Connection failed, Reason: {e}')
package main
import (
"crypto/tls"
"fmt"
"github.com/gorilla/websocket"
"net/http"
)
func main() {
tlsConfig := &tls.Config{
InsecureSkipVerify: true,
}
dialer := websocket.DefaultDialer
dialer.TLSClientConfig = tlsConfig
wsSubscriber, _, err := dialer.Dial("ws://127.0.0.1:28333/ws", http.Header{"Authorization": []string{<YOUR-AUTHORIZATION-HEADER>}})
if err != nil {
fmt.Println(err)
return
}
// ETH Example
request := `{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219"}}`
// BSC Example
// request := `{"jsonrpc": "2.0", "id": 1, "method": "blxr_tx", "params": {"transaction": "f86b0184...e0b58219", "blockchain_network": "BSC-Mainnet"}}`
err = wsSubscriber.WriteMessage(websocket.TextMessage, []byte(request))
if err != nil {
fmt.Println(err)
return
}
_, response, err := wsSubscriber.ReadMessage()
if err != nil {
fmt.Println(err)
}
fmt.Println(string(response)) // or process it generally
}
Result Field | Description |
tx_hash | Transaction hash |
Response
{
"jsonrpc": "2.0",
"id": "1",
"result": {
"tx_hash": "ffd59870844e5...bfa54a69"
}
}
Sending Transactions to the Cloud-API or Gateway-API requires you to register an account on the bloXroute portal. During the registration process, a certificate, private key, and secret hash will be generated for your account. The certificate and key will be used to authenticate your account.
The bloXroute best practice is for users to send transactions to both the Gateway-API and to their blockchain node. You should send transactions in parallel to the Gateway and to your blockchain node as a backup.
Users should not send transactions to the transactions streams WebSocket endpoint
wss://<REGION>.<NETWORK>.blxrbdn.com/ws(e.g.wss://virginia.eth.blxrbdn.com/ws) which is for streaming only and doesn't support sending transactions.Last modified 21d ago