Cloudformation deploy aws sdk for javascript

Question

Looking at the AWS sdk for Javascript, it appears we can only create stacks but i'm looking of a way to deploy a stack. How would I do that with the provided sdk; this is what they currently have:

cloudformation.createStack(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

I was hoping for something like this:

cloudformation.deployStack(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

Basically, I would like to recreate this command using the sdk instead of the cli:

aws cloudformation deploy --template-file /path_to_template/template.json --stack-name my-new-stack --parameter-overrides Key1=Value1 Key2=Value2 --tags Key1=Value1 Key2=Value2

And this is because I use Linux and can put this in a shell script while most of the people I work with all use Windows and I don't want to use Windows Batch but instead a cross platform solution like npm and thus the aws-sdk for javascript approach.

How would you perform the cloudformation.deployStack using the SDK and NOT the CLI ?

user_2084979 · Answer

The current AWS sdk for Javascript does not currently have a deploy method, however, the AWS CLI's deploy command is a wrapper:

Deploys the specified AWS CloudFormation template by creating and then executing a change set

With that in mind, I wrote the following code:

const CloudformationInstance = new Cloudformation(accessParams)

CloudformationInstance.createChangeSet(changeSetParams, (err, data) => {
  if (err) throw new Error(err, err.stack)
  console.info('Succesfully created the ChangeSet: ', data)

  CloudformationInstance.waitFor('changeSetCreateComplete', {ChangeSetName: config.changeSetName}, (err, data) => {
  if (err) throw new Error(err, err.stack)
  const { StackName } = data.Stacks[0]

    CloudformationInstance.executeChangeSet({ StackName, ChangeSetName }, (err, data) => {
        if (err) throw new Error(err, err.stack)
        console.info('Succesfully finished creating the set: ', data)
    })
  })
})

Note: changeSetType(part of the changeSetParams) needs to be explicitly defined as either "Create or Update". So using something like:

const upsertParam = await CloudformationInstance.describeStacks(params, (err, data) => {
  if(err) return 'CREATE'
  return 'UPDATE'
}

Cloudformation deploy aws sdk for javascript

1 Answers