Function dcrClientSlug

packages/core/sdk/src/oauth-service.ts:452–467

(
  issuer: string | null,
  resource: string | null,
  fallback: OAuthClientSlug,
)

};

const dcrClientSlug = (
  issuer: string | null,
  resource: string | null,
  fallback: OAuthClientSlug,
): OAuthClientSlug => {
  if (issuer === null) return fallback;
  const issuerHost = hostOfUrl(issuer);
  if (issuerHost === null) return fallback;
  const base = `dcr-${slugifyOAuthKey(issuerHost) || "authorization-server"}`;
  if (resource === null) return OAuthClientSlug.make(base);
  const resourceUrl = parseUrl(resource);
  const resourceSource =
    resourceUrl === null ? resource : `${resourceUrl.host}${resourceUrl.pathname}`;
  const resourcePart = slugifyOAuthKey(resourceSource).slice(0, 60) || "resource";
  return OAuthClientSlug.make(`${base}-${resourcePart}-${shortStableHash(resource)}`.slice(0, 240));
};

/** Dedupe a freshly-minted DCR slug against slugs already held by an owner's
 *  DCR candidates, appending `-2`, `-3`, … so a new client never collides with