问接收消费请求通知并发送消费信息

EN

func readPrivateKeyFromFile(keyFile string) (*ecdsa.PrivateKey, error) {
    bytes, err := ioutil.ReadFile(keyFile)
    if err != nil {
        return nil, err
    }

    block, _ := pem.Decode(bytes)
    if block == nil {
        return nil, errors.New("appstore private key must be a valid .p8 PEM file")
    }

    key, err := x509.ParsePKCS8PrivateKey(block.Bytes)
    if err != nil {
        return nil, err
    }

    switch pk := key.(type) {
    case *ecdsa.PrivateKey:
        return pk, nil
    default:
        return nil, errors.New("appstore private key must be of type ecdsa.PrivateKey")
    }

}

func generateToken(privateKey *ecdsa.PrivateKey) (string, error) {
    token := jwt.NewWithClaims(jwt.SigningMethodES256, jwt.MapClaims{
        "iss":   "issuerId,
        "isa":   time.Now().Unix(),
        "exp":   expireTIme,
        "aud":   "appstoreconnect-v1",
        "nonce": "uuid",
        "bid":   "bid",
    })

    token.Header["kid"] = "keyId"
    token.Header["alg"] = "ES256"
    token.Header["typ"] = "JWT"

    return token.SignedString(privateKey)
}