模块初始化错误：使用kms.decrypt时引用错误

Question

我有一个函数可以解密发送给它的加密变量。我刚刚复制并粘贴了代码，这个按钮位于aws lambda控制台的encypt按钮旁边。下面是一些修改后，我的代码：

var decryptEnvVariable = function (encryptedEnvVar) { 
var promise = new Promise(function (resolve, reject) { 
    const kms = new AWS.KMS(); 

    kms.decrypt({CiphertextBlob: new Buffer(encryptedEnvVar, 'base64')}, (err, data) = > { 
     if (err) { 
      console.log('Error in decryption of environment variable', err); 
      reject(err); 
     } 
     resolve(data.Plaintext.toString('ascii')); 
}); 
}); 
return promise; 

} 

所以，当我调用上面我得到以下错误：

``START RequestId: eb7dd1ac-4549-11e7-b41b-071b15adaf2f Version: $LATEST 
    module initialization error: ReferenceError 
kms.decrypt({CiphertextBlob: new Buffer(encryptedEnvVar, 'base64')}, (err, 
data) = > { 
    ^^^^^^^^^^^ 
ReferenceError: Invalid left-hand side in assignment 
at createScript (vm.js:56:10) 
at Object.runInThisContext (vm.js:97:10) 
at Module._compile (module.js:542:28) 
at Object.Module._extensions..js (module.js:579:10) 
at Module.load (module.js:487:32) 
at tryModuleLoad (module.js:446:12) 
at Function.Module._load (module.js:438:3) 
at Module.require (module.js:497:17) 
at require (internal/module.js:20:19) 
END RequestId: eb7dd1ac-4549-11e7-b41b-071b15adaf2f 
REPORT RequestId: eb7dd1ac-4549-11e7-b41b-071b15adaf2f Duration: 56.15 ms 
Billed Duration: 100 ms Memory Size: 128 MB Max Memory Used: 18 MB 

任何想法？

Answer 1

你确定不只是= >到=>（没有空格）？