IFClite TypeScript API
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    Interface PkceCodeChallenge

    A freshly derived PKCE pair, ready to drive one authorization attempt.

    interface PkceCodeChallenge {
        codeChallenge: string;
        codeChallengeMethod: "S256";
        codeVerifier: string;
    }
    Index
    codeChallenge codeChallengeMethod codeVerifier
    codeChallenge: string

    RFC 7636 §4.2, S256 method: BASE64URL(SHA256(ASCII(code_verifier))).

    codeChallengeMethod: "S256"
    codeVerifier: string

    RFC 7636 §4.1: 43-128 char high-entropy random string. Never send this to the authorization endpoint — only the derived challenge goes in the authorization URL; the verifier is redeemed later, at the token endpoint.

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