CloudWatch 自定义指标可以是变量而不是硬编码字符串吗

Question

I have created a AWS custom metric in CloudWatch. I am using NodeJs Lambda function to create a custom metric along with dimensions. I would like to know if we can pass variable value to dimensions instead of string (hardcoded strings). Does dimension values accept anything other then string value?

This works:

var params = {
    MetricData: [
      {
        MetricName: 'PAGES_VISITED',
        Dimensions: [
          {
            Name: 'UNIQUE_PAGES',
            Value: '**URLS**'
          },
        ],
        Unit: 'None',
        Value: 1.0
      },
    ],
    Namespace: 'SITE/TRAFFIC'
  }

But I want to pass something like this:

MetricData: [
    {
      MetricName: 'PAGES_VISITED',
      Dimensions: [
        {
          Name: 'MessageAttributes',
          Value: msgattr
        },
        {
          Name: 'CompanyName',
          Value: process.env.CompanyName
        },
        {
          Name: 'short_description',
          Value: message
        },
      ],
      Unit: 'None',
      Value: 10.0
    },
  ],

Answer 1

Yes, that will work fine.

The Value variables for Dimensions can only be strings, but you can provide those strings by referencing variables.

To see the result, simply print(params) and you will see that the values from the variables have been stored.