testmempoolaccept

POST

https://grs.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Test raw transactions against mempool acceptance policy without submitting them.

Body

application/json

jsonrpcstringrequired

idstringrequired

methodstringtestmempoolacceptrequired

paramsArray<Array<any> | number>required

Positional parameters (in order):

rawtxs (array, required) — Array of raw transaction hex strings
maxfeerate (number, optional) — Maximum allowed fee rate in GRS/kvB; default 0.10

Show child attributes

One of

Array<any>

number

Response

200OK

JSON-RPC response (inspect error when result is null)

401Unauthorized

Unknown API key

500Internal Server Error

Service is unavailable

testmempoolaccept

curl -X POST 'https://grs.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "testmempoolaccept",
    "params": [
      []
    ]
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://grs.nownodes.io/");
const result = await provider.send("testmempoolaccept", [
  []
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://grs.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "testmempoolaccept",
  "params": [
    []
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://grs.nownodes.io/"))
response = w3.provider.make_request("testmempoolaccept", [
  []
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://grs.nownodes.io/"),
});

const result = await client.request({
  method: "testmempoolaccept",
  params: [
  []
],
});

console.log(result);

const endpoint = "https://grs.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "testmempoolaccept", params: [
  []
], id: 1 });
console.log(result);

const response = await fetch('https://grs.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "1.0",
      "id": "curltest",
      "method": "testmempoolaccept",
      "params": [
        []
      ]
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "1.0",
  "id": "curltest",
  "method": "testmempoolaccept",
  "params": [
    []
  ]
}

response = requests.post('https://grs.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://grs.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "testmempoolaccept",
    "params": [
      []
    ]
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "1.0",
  "id": "curltest",
  "method": "testmempoolaccept",
  "params": [
    []
  ]
}

200

{
  "result": [
    {
      "txid": "string",
      "wtxid": "string",
      "vsize": 0,
      "vsize_adjusted": 0,
      "vsize_bip141": 0,
      "allowed": true,
      "fees": {
        "base": 0,
        "effective-feerate": 0,
        "effective-includes": [
          "string"
        ]
      },
      "reject-reason": "string",
      "reject-details": "string",
      "package-error": "string"
    }
  ],
  "error": {
    "code": 0,
    "message": "string"
  },
  "id": "string"
}