I am trying to create an unsigned transaction and broadcast it. I've used the following lines of code, and called transferSignPushTransaction with valid parameters...

async function transferSignPushTransaction(from, to, quantity, memo = ''){
  const tr = await eos.transfer(from, to, quantity, memo, { broadcast: false, sign: false });
  const signedTr = await signTr(tr, from, to, quantity, memo);
  await eos.pushTransaction(signedTr.transaction);

async function signTr(tr, from, to, quantity, memo = '') {
  let par = ecc.sha256(Buffer.from(tr.transaction.transaction.actions[0].data.toString, 'hex'));
  const sig = await getSignature(par);
  return tr;

async function getSignature(tr) {
  const sig = await ecc.signHash(tr,'5K25WUiTzhRTkdRgj4tfeeQbiW6FUPWN3LDhn8YqJsdUcjiwSgc');
  return sig;

This creates the following error msg:

(node:4968) UnhandledPromiseRejectionWarning: Error: {"code":500,"message":"Internal Service Error","error":{"code":3090003,"name":"unsatisfied_authorization","what":"Provided keys, permissions, and delays do not satisfy declared authorizations","details":[{"message":"transaction declares authority '{\"actor\":\"alice\",\"permission\":\"active\"}', but does not have signatures for it under a provided delay of 0 ms, provided permissions [], and provided keys [\"EOS6fY5AByVfbZhu7AYNj4PWg7PTVJjhp9Qj12KYWVTytH7z8fAG5\"]","file":"authorization_manager.cpp","line_number":411,"method":"check_authorization"}]}}

I think I have passed in a wrong parameter to the ecc.signHash function. Is there anyone who can give me an example of what kind of parameter I should pass into ecc.sign or ecc.signHash function? And how to obtain those?


  • Did you provide the permission to the account who pushing this transaction. Better you check first by the account with which you deployed your contract. – Nirdesh Kumar Choudhary Nov 30 '18 at 9:18
  • Yup! I provided the right permission to the account. I am probably passing a wrong parameter to ecc.signHash – jinjineos Dec 2 '18 at 7:21
  • Is the key that you are signing with the one assigned to the account that is authorizing the transfer? – John Haager Dec 5 '18 at 1:01

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