未捕获的TypeError:filesys.existsSync不是函数 [英] Uncaught TypeError: filesys.existsSync is not a function

问题描述

当尝试使用适用于JavaScript的AWS IoT SDK初始化IOT设备时，出现错误

When trying to initialize IOT device using AWS IoT SDK for JavaScript, its giving error

TypeError:filesys.existsSync不是函数

TypeError: filesys.existsSync is not a function

var device = AWSIoTData.device({
    keyPath: "././assets/certificate/xx",
    certPath: "././assets/certificate/xx",
    caPath: "././assets/certificate/xx",
    clientId: "xx",
    host: "xx",
    region: "xx",
    port: 8883,
    debug: true
});

tls-reader.js为何具有此未定义的功能?

How come tls-reader.js has this undefined function?

推荐答案

如果您尝试通过浏览器使用aws-iot-sdk，将无法正常工作.在您的示例中，您尝试使用路径访问证书，该路径是浏览器运行时不可用的功能.FileSystem是一个系统模块，浏览器不支持，但节点支持.但是，您可以使用浏览"解决此问题.有关更多信息，请参见 sdk文档.

If your trying to work with aws-iot-sdk with browser this will not work as expected. In your example your trying to access the certificates using path which is a functionality not available on browser runtime. FileSystem is a system module and it's not supported by a browser but supported by node. However you can use to "browserify" get this resolved. Refer to the sdk documentation for more information.

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