Skip to main content
POST
/
user
/
webauthn
/
add
Initialize adding of a new webauthn security key
curl --request POST \
  --url https://{subdomain}.auth.{region}.nhost.run/v1/user/webauthn/add \
  --header 'Authorization: Bearer <token>'
{
  "rp": {
    "name": "<string>",
    "id": "<string>"
  },
  "user": {
    "name": "<string>",
    "displayName": "<string>",
    "id": "<string>"
  },
  "challenge": "aSDinaTvuI8gbWludGxpZnk=",
  "pubKeyCredParams": [
    {
      "type": "public-key",
      "alg": 123
    }
  ],
  "timeout": 123,
  "excludeCredentials": [
    {
      "type": "public-key",
      "id": "aSDinaTvuI8gbWludGxpZnk=",
      "transports": [
        "usb"
      ]
    }
  ],
  "authenticatorSelection": {
    "authenticatorAttachment": "platform",
    "requireResidentKey": true,
    "residentKey": "discouraged",
    "userVerification": "preferred"
  },
  "hints": [
    "security-key"
  ],
  "attestation": "none",
  "attestationFormats": [
    "packed"
  ],
  "extensions": {}
}

Authorizations

​
Authorization
string
header
required

Bearer authentication that requires elevated permissions. Used for sensitive operations that may require additional security measures such as recent authentication. For details see https://docs.nhost.io/guides/auth/elevated-permissions

Response

Challenge created for registering a new security key

​
rp
object
required
​
user
object
required
​
challenge
string<byte>
required

Base64url-encoded binary data

​
pubKeyCredParams
object[]
required

The desired credential types and their respective cryptographic parameters

​
timeout
integer

A time, in milliseconds, that the caller is willing to wait for the call to complete

​
excludeCredentials
object[]

A list of PublicKeyCredentialDescriptor objects representing public key credentials that are not acceptable to the caller

​
authenticatorSelection
object
​
hints
enum<string>[]

Hints to help guide the user through the experience

​
attestation
enum<string>
default:none

The attestation conveyance preference

Available options:
none,
indirect,
direct,
enterprise
​
attestationFormats
enum<string>[]

The preferred attestation statement formats

​
extensions
object

Additional parameters requesting additional processing by the client and authenticator

⌘I