Btcpayserver refuses to work with a new token

The guys when I try to create an invoice, I constantly have a 401 error, although I do everything according to the instructions:

info: BTCPayServer.Security.BitpayAuthentication+BitpayAuthHandler: Bitpay.Auth was not authenticated. Failure message: Invalid credentials
info: BTCPayServer.Security.BitpayAuthentication+BitpayAuthHandler: AuthenticationScheme: Bitpay.Auth was challenged.

perform the following steps:

• create a private key
• I get clientId using it (that is, I get SIN)
• I create a new token in the admin panel btcpayserver-> stores-> Access token
• copying the pairing code and sending a request to /tokens, the request looks like this: body {pairingCode: ‘j6jfkaf’, id: ‘Tf3WxtCNvPR9ATBjc14Wrw6EBxBS5AWn8Li’}
• in response, I successfully receive the token
• then I create an invoice {price: 900, currency: ‘USD’, token: ‘****’}
• add X-Identity and X-Signature headers

{
'X-Identity': Buffer.from(this.keypar.getPublic().EncodeCompressed()).ToString('hex'),
'X-Signature': this.sign(url, this.keypar).toString ('hex')
}

where url is host + uri + payload, and payload is JSON request body

After that, I successfully create an invoice, everything works! But after all, the current token will become obsolete after some time, and I added functionality to update it for example after 10 hours.

I save the private key to a file:

fs.writeFile('./key', JSON.stringify(keys.priv), 'utf-8', (err) => {
  if (err) console.log('err generateKeys:', err)
})

Then, when restarting the service, I load the private key:

const file = fs.readFileSync('./key', 'utf8')
this.keypar = ec.keyFromPrivate(Buffer.from(JSON.parse(file), 'hex'))

To get a new token, I send a request to / tokens with the following parameters

{
  label: 'label', // obtained by pairing pair code
  id: 'Tf3WxtCNvPR9ATBjc14Wrw6EBxBS5AWn8Li',
  facade: 'merchant'
}

In response, I get a new token and using it I try to create an invoice, but I get the error 401 (

Guys, explain to me how to organize work with the API?

I want to know, after pairing paircode, I can use the received data to create a new token, right? but it does not work (

The source code for my implementation is here: https://github.com/hazratgs/btcpay-node/blob/master/payqr.js

[hazratgs]

@hazratgs has your issue been resolved?

Yes, thank

[NicolasDorier]

Btw, is it related to https://github.com/btcpayserver/btcpayserver/issues/563 ?