PublicKeyCredential: rawId property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The rawId read-only property of the
PublicKeyCredential interface is an ArrayBuffer object
containing the identifier of the credentials.
The PublicKeyCredential.id property is a base64url encoded version of this identifier.
Note:
This property may only be used in top-level contexts and will
not be available in an <iframe> for example.
Value
An ArrayBuffer containing the identifier of the credentials. This
identifier is expected to be globally unique and is appointed for the current
PublicKeyCredential and its associated
AuthenticatorAssertionResponse.
Examples
const options = {
challenge: new Uint8Array(26) /* from the server */,
rp: {
name: "Example CORP",
id: "login.example.com",
},
user: {
id: new Uint8Array(26) /* To be changed for each user */,
name: "canand@example.com",
displayName: "Carina Anand",
},
pubKeyCredParams: [
{
type: "public-key",
alg: -7,
},
],
};
navigator.credentials
.create({ publicKey: options })
.then((pubKeyCredential) => {
const rawId = pubKeyCredential.rawId;
// Do something with rawId
})
.catch((err) => {
// Deal with any error
});
Specifications
| Specification |
|---|
| Web Authentication: An API for accessing Public Key Credentials - Level 3 # dom-publickeycredential-rawid |
Browser compatibility
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