INNER CODE UNIT · TypeScript

isSigningJwk

bex-co/beancount-io · backend-cluster/backend-v2/src/config/jwks/index.ts:26

function isSigningJwk(value: unknown): value is SigningJwk {
  if (typeof value !== "object" || value === null) return false;
  const candidate = value as Record<string, unknown>;
  if (
    !(
      candidate.kty === "EC" &&
      candidate.crv === "P-256" &&
      candidate.alg === "ES256" &&
      (candidate.use === undefined || candidate.use === "sig") &&
      (candidate.key_ops === undefined ||
        (Array.isArray(candidate.key_ops) &&
          candidate.key_ops.includes("sign"))) &&
      typeof candidate.kid === "string" &&
      candidate.kid.length > 0 &&
      typeof candidate.d === "string" &&
      candidate.d.length > 0
    )
  ) {

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