export async function fetchJwk()

in src/jwk.ts [61:79]

• 19 lines of code
• 4 McCabe index (conditional complexity)

export async function fetchJwk(
  jwksUri: string,
  decomposedJwt: DecomposedJwt
): Promise<Jwk> {
  if (!decomposedJwt.header.kid) {
    throw new JwtWithoutValidKidError(
      "JWT header does not have valid kid claim"
    );
  }
  const jwk = (await fetchJwks(jwksUri)).keys.find(
    (key) => key.kid === decomposedJwt.header.kid
  );
  if (!jwk) {
    throw new KidNotFoundInJwksError(
      `JWK for kid "${decomposedJwt.header.kid}" not found in the JWKS`
    );
  }
  return jwk;
}