Saving Server Side JavaScript Functions

Question

Is it possible to create SSJS functions as code resources in Web Studio and then use those functions in other CloudPages or Script Activities?

For example, if I created a function that generates an access token, I can definitely use it in the same CloudPage/script activity that it's created, but this might be useful in other places as well within the same Marketing Cloud account. I would ideally create this function as a code resource and then reference it in all activities that need it.

<script runat="server">  

Platform.Load("Core","1");

function generateToken(clientId, clientSecret, authURL) {
  var authUrl = authURL;
  var contentType = 'application/json';
  var authJSON = {
    "clientId": clientId,
    "clientSecret": clientSecret
  }
  var authPayload = Platform.Function.Stringify(authJSON);

  var accessTokenResult = HTTP.Post(authUrl, contentType, authPayload);

  var statusCode = accessTokenResult["StatusCode"];
  var response = accessTokenResult["Response"][0];
  var accessToken = Platform.Function.ParseJSON(response).accessToken;

  return accessToken;

};

</script>

Thanks!

Answer 1

You kind of answered your own question. You would save it as a code snippet in Content Builder and then reference that snippet in any Cloudpage/email/etc. that you would use it in. This will then add the referenced function to your code.

For example:

Your Content Builder Code Snippet:
Content Block Key: TokenFunction

<script runat=server>
Platform.Load("core", "1.1.1");

function generateToken(clientId, clientSecret, authURL) {
  var authUrl = authURL;
  var contentType = 'application/json';
  var authJSON = {
    "clientId": clientId,
    "clientSecret": clientSecret
  }
  var authPayload = Platform.Function.Stringify(authJSON);

  var accessTokenResult = HTTP.Post(authUrl, contentType, authPayload);

  var statusCode = accessTokenResult["StatusCode"];
  var response = accessTokenResult["Response"][0];
  var accessToken = Platform.Function.ParseJSON(response).accessToken;

  return accessToken;

}
</script>

Then you reference it inside your Cloudpage:

Platform.Function.ContentBlockByKey("TokenFunction");

So put it all together and you get something like:

<script runat=server>
Platform.Load("core", "1.1.1");

Platform.Function.ContentBlockByKey("TokenFunction")

var Id = "{{yourID}}"
var Secret = "{{yourSecret}}"
var URL = "https://auth.exacttargetapis.com/v1/requestToken"

var accessToken = generateToken(Id, Secret, URL)

Write("token: " + accessToken);


</script>

Which will output token: XXXXXXX where the X's represent your token characters.

My recommendation would be to put together more than a single function per code snippet and store it as a 'library' rather than individual functions.