Dry run

Dry run an extrinsic.

Use the dryrun call to practice submission of a transaction.

POSThttps://dot-playbook.nownodes.io/transaction/dry-run

Body

application/json

txstring (hex)

Response

200400

successful operation

Body

application/json

resultTypeenum

Either DispatchOutcome if the transaction is valid or TransactionValidityError if the result is invalid.

DispatchOutcomeTransactionValidityError

resultenum

If there was an error it will be the cause of the error. If the transaction executed correctly it will be Ok: []

OkCannotLookupNoUnsignedValidatorCustom(u8)CallPaymentFutureStaleBadProofAncientBirthBlockExhaustsResourcesBadMandatoryMandatoryDispatch

validityErrorTypeenum

InvalidTransactionUnknownTransaction

Request

JavaScriptCurlPythonHTTP

const response = await fetch('https://dot-playbook.nownodes.io/transaction/dry-run', {
    method: 'POST',
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({}),
});
const data = await response.json();

Response

200400

{
  "resultType": "DispatchOutcome",
  "result": "Ok",
  "validityErrorType": "InvalidTransaction"
}