Function discoverOAuthMetadata

src/client/auth.ts:866–904

(
    issuer: string | URL,
    {
        authorizationServerUrl,
        protocolVersion
    }: {
        authorizationServerUrl?: string | URL;
        protocolVersion?: string;
    } = {},
    fetchFn: FetchLike = fetch
)

 * @deprecated This function is deprecated in favor of `discoverAuthorizationServerMetadata`.
 */
export async function discoverOAuthMetadata(
    issuer: string | URL,
    {
        authorizationServerUrl,
        protocolVersion
    }: {
        authorizationServerUrl?: string | URL;
        protocolVersion?: string;
    } = {},
    fetchFn: FetchLike = fetch
): Promise<OAuthMetadata | undefined> {
    if (typeof issuer === 'string') {
        issuer = new URL(issuer);
    }
    if (!authorizationServerUrl) {
        authorizationServerUrl = issuer;
    }
    if (typeof authorizationServerUrl === 'string') {
        authorizationServerUrl = new URL(authorizationServerUrl);
    }
    protocolVersion ??= LATEST_PROTOCOL_VERSION;

    const response = await discoverMetadataWithFallback(authorizationServerUrl, 'oauth-authorization-server', fetchFn, {
        protocolVersion,
        metadataServerUrl: authorizationServerUrl
    });

    if (!response || response.status === 404) {
        await response?.body?.cancel();
        return undefined;
    }

    if (!response.ok) {
        await response.body?.cancel();
        throw new Error(`HTTP ${response.status} trying to load well-known OAuth metadata`);
    }

    return OAuthMetadataSchema.parse(await response.json());
}

/**
 * Builds a list of discovery URLs to try for authorization server metadata.