Type Alias: RecognizedTokenTypes
August 29, 2025 ยท View on GitHub
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โข RecognizedTokenTypes = Record<Lowercase<string>, (res, body) => void>
A record of custom token_type handlers for processing non-standard token types in OAuth 2.0
token endpoint responses.
This allows extending the library to support non-standard token types returned by the authorization server's token endpoint with optional specific processing.
By default, this library recognizes and handles bearer and dpop token types. When a token
endpoint response contains a different token_type value, you can provide custom handlers to
process these tokens appropriately. Token types other than bearer, dpop, and ones represented
in this record will be rejected as per https://www.rfc-editor.org/rfc/rfc6749.html#section-7.1
Examples
Allow a custom mac token type
let recognizedTokenTypes: oauth.RecognizedTokenTypes = {
mac: () => {},
}
Allow a custom mac token type with additional constraints put on the token endpoint JSON
response
let recognizedTokenTypes: oauth.RecognizedTokenTypes = {
mac: (response: Response, tokenResponse: oauth.TokenEndpointResponse) => {
if (typeof tokenResponse.id !== 'string') {
throw new oauth.UnsupportedOperationError('invalid "mac" token_type', {
cause: { body: tokenResponse },
})
}
},
}
Note
Token type names are case insensitive and will be normalized to lowercase before lookup.