node.js AWS Lambda：无法导入模块

AWS Lambda: Unable to import module

提问by Ben Richards

please forgive me, I am totally new at Lambda and Node.

请原谅我，我是 Lambda 和 Node.js 的新手。

I am trying to replicate thisgit to order a pizza using an AWS IoT button.

我正在尝试复制此git 以使用 AWS IoT 按钮订购披萨。

My current code is:

我目前的代码是：

var pizzapi = require('dominos');

var myStore = new pizzapi.Store(
    {
        ID: 'Example'
    }
);

var myAddress = new pizzapi.Address(
        {
            Street: 'Example',
            City: 'Example',
            Region: 'Example',
            PostalCode: 'Example'
        }
    );

var myCustomer = new pizzapi.Customer(
    {
        firstName: 'Example',
        lastName: 'Example',
        address: myAddress,
        phone: 'Example',
        email: '[email protected]'
    }
);

var order = new pizzapi.Order(
    {
        customer: myCustomer,
        storeID: myStore.ID
    }
);

var cardNumber='Example';
var cardInfo = new order.PaymentObject();
cardInfo.Amount = order.Amounts.Customer;
cardInfo.Number = cardNumber;
cardInfo.CardType = order.validateCC(cardNumber);
cardInfo.Expiration = 'Example';
cardInfo.SecurityCode = 'Example';
cardInfo.PostalCode = 'Example';

order.Payments.push(cardInfo);

function orderDominos(event, context) {
  var clickType = event.clickType;
  switch(clickType.toLowerCase()) {
    case "single": {
      order.addItem(
          new pizzapi.Item(
              {
                  code: 'P_14SCREEN',
                  options: {},
                  quantity: 1
              }
          )
      );
      break;
    }
    case "double": {
        order.addItem(
          new pizzapi.Item(
              {
                  code: 'P_14SCREEN',
                  options: {},
                  quantity: 1
              }
          )
      );
      break;
    }
    case "long": {
        order.addItem(
          new pizzapi.Item(
              {
                  code: 'P_14SCREEN',
                  options: {},
                  quantity: 1
              }
          )
      );
      break;
    }
  }
  order.validate(
      function(result) {
          console.log("Order is Validated");
      }
  );
  order.price(
      function(result) {
            console.log("Order is Priced");
      }
  );
  order.place(
      function(result) {
          console.log("Price is", result.result.Order.Amounts, "\nEstimated Wait Time",result.result.Order.EstimatedWaitMinutes, "minutes");
          console.log("Order placed!");
          context.succeed(event);
      }
  );
}

exports.handler = orderDominos;

The file structure is:

文件结构为：

• orderDominos.js
• node_modules/dominos

• 订购Dominos.js
• 节点模块/多米诺骨牌

I zipped the files, uploaded to Lambda, and pointed the header to "index.handler"

我压缩文件，上传到 Lambda，并将标题指向“index.handler”

What am I doing wrong?

我究竟做错了什么？

Edit: The error

编辑：错误

Unable to import module 'orderDominos': Error
at Function.Module._resolveFilename (module.js:325:15)
at Function.Module._load (module.js:276:25)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object.<anonymous> (/var/task/node_modules/dominos/src/http-json.js:1:74)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Module.require (module.js:353:17)

回答by Prasanth Jaya

In my case, i mentioned Handleras index.handlerbut my root filename is app.js. Changing this to index.jsworked.

就我而言，我提到了Handlerasindex.handler但我的根文件名是app.js. 将此更改为index.js有效。

Also make sure the zip file has your index.js, node_modules and package.jsondirectly.

还要确保 zip 文件index.js, node_modules and package.json直接包含您的 .zip 文件。

Should be:

应该：

zip file --> index.js
             package.json
             node_modules

Not

不是

zip file --> some_folder_name --> index.js
                                  package.json
                                  node_modules

回答by Benjamin Guttmann

It was a permission issue for me, after I changed the permissions for the 'node_modules' folder to 777, zipped and uploaded it, it worked.

这对我来说是一个权限问题，在我将“node_modules”文件夹的权限更改为 777、压缩并上传后，它起作用了。

回答by Gabriel Wamunyu

Ran into this problem as well. What solved it for me was realizing that the file path was too long on a Windows machine. After zipping, I realized that the contents of node_modules was empty. I copied the files for zipping to a higher level path e.g. C:\User\ and zipped the specified files. Hope this helps!

也遇到了这个问题。为我解决的是意识到 Windows 机器上的文件路径太长。压缩后，我发现 node_modules 的内容是空的。我将要压缩的文件复制到更高级别的路径，例如 C:\User\ 并压缩指定的文件。希望这可以帮助！

回答by Ranjith Ramesh

I had the same issue and got it solved by the following the below steps

我遇到了同样的问题，并通过以下步骤解决了它

1. dont use the default zip option provided in the finder in mac. use terminal to zip

1. 不要使用 mac 中 finder 中提供的默认 zip 选项。使用终端压缩

cd foldername

cd 文件夹名

zip -r foldername.zip *

zip -r 文件夹名.zip *

1. use exports in all your js functions which you want to use in the index.js file.

2. 在所有要在 index.js 文件中使用的 js 函数中使用导出。

Say in Javascript file a.js

在 Javascript 文件 a.js 中说

var func = function(){

}

export.func = func ; 

In index.js

在 index.js 中

var a = require('a.js')
exports.handler(event, context, callback){

a.func

}

回答by mnng

What worked for me was to zip the following files and upload the zip(after doing npm install in the folder):

对我有用的是压缩以下文件并上传 zip（在文件夹中执行 npm install 之后）：

• node_modules/
• your_file1.js
• your file2.js
• your files.js
• package.json
• package-lock.json

• 节点模块/
• your_file1.js
• 你的 file2.js
• 你的 files.js
• 包.json
• 包-lock.json

回答by LeOn - Han Li

In our case, it is neither path or permission issue. We got this error because we do npm prune --productionbefore we deploy, and we have some runtime packages that is incorrectly placed under devDependencieswhich get wiped out during that phase. Unfortunately the lambda only gives a vague error message.

在我们的例子中，这既不是路径问题，也不是权限问题。我们得到这个错误是因为我们npm prune --production在部署之前就做了，我们有一些运行时包被错误地放置在devDependencies这些包下，在那个阶段被清除了。不幸的是，lambda 只给出了一个模糊的错误信息。