GCP服务帐户JWT的多个范围？

Question

如何在 JWT 中设置多个范围以获取服务帐户的访问令牌？

这是我的代码 JWT 代码。它适用于单个范围，但不适用于多个范围。我尝试了逗号分隔值，但没有运气。

private func makeSignedJWT() throws -> String {
    let header = Header()
    struct MyClaims: Claims {
        /// The email address of the service account.
        var iss:String
        /// A space-delimited list of the permissions that the application requests.
        var scope: String
        /// A descriptor of the intended target of the assertion. When making an access token request this value is always https://oauth2.googleapis.com/token.
        var aud: String
        /// The expiration time of the assertion, specified as seconds since 00:00:00 UTC, January 1, 1970. This value has a maximum of 1 hour after the issued time.
        var exp: Date
        /// The time the assertion was issued, specified as seconds since 00:00:00 UTC, January 1, 1970.
        var iat: Date
    }
    let now = Date()
    let claims = MyClaims(
        iss: "my.account@my.account.gserviceaccount.com",
//        scope: "https://www.googleapis.com/auth/admin.directory.user.readonly",
        scope: [
            "https://www.googleapis.com/auth/admin.directory.user.alias.readonly",
            "https://www.googleapis.com/auth/admin.directory.user.readonly",
        ].joined(separator: ","),
        aud: "https://oauth2.googleapis.com/token",
        exp: now.addingTimeInterval(60 * 60),
        iat: now)
    var jwt = JWT(header: header, claims: claims)
    let jwtKeyData = "-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----\n".data(using: .utf8)!
    let jwtSigner = JWTSigner.rs256(privateKey: jwtKeyData)
    let signedJWT = try jwt.sign(using: jwtSigner)
    return signedJWT
}

因此错误而失败。

{
  "error": "invalid_scope",
  "error_description": "https://www.googleapis.com/auth/admin.directory.user.alias.readonly,https://www.googleapis.com/auth/admin.directory.user.readonly is not a valid audience string."
}

• 使用逗号分隔值的多个范围是否正确？
• 还是我配置错误？

我正在使用 Xcode 11、Swift 5.x 和 IBM Swift-JWT 库。

Answer 1

范围由空格 连接和分隔，而不是逗号,。

].joined(separator: " "),