POST Form Data using REST API

Question

Hi,My company has recently started integration work on Marketo. We were earlier using Pardot-Salesforce to capture formdata , now the same needs to replaced with Marketo using their REST API.!Going through the documentation I dont see any REST API which shows that I can POST data to a form( I have successfully created a form and able to submit data by embedding it in a form) and also linking the form data to the Form Landing Page . The Lead or Form is actually shown as a Member only if I use the Form landing page to post data to it. Though the data is shown under the Marketing studio , if I like search based on email IdQuestion1- How should I replace my existing codebase to use the Marketo Forms , with minimal coding effort.2- Which endpoint should I use to POST the form data to Marketo. I am sorry I have gone through the documentation twice and implemented a few code examples , But I am not sure which endpoint I should use. I can see that the embed form POSTS data to .marketo.com/index.php/leadCapture/save2 ?  If nothing works , I am going to use this endpoint , though this is not documented in REST documentation.2- Is it possible to Link the Form's Data (emailId? ) to the actual form ?@Beth Corby

SanfordWhiteman · Accepted Answer

You actually shouldn't be using the REST API at all for this task because you'll be opening a DoS vulnerability. Using an API call in response to untrusted user input (a public form post) is a no-no because your daily limit is infinitesimal. A malicious but unskilled actor could use all your calls in a 1/2 hour, and you can't provide proper service to legit users without keeping your input rates high enough to be abused by bad actors. (Note you need a minimum of 2 calls to roughly mirror what a true form post does.)

The /save2 endpoint is even more of a liability from the server side than the API because you're limited to one request every 2 seconds, which doesn't model real-world concurrency.

Instead, you should use the client-side (browser-side) Forms API to submit data in the background to Marketo. This triggers all the proper Form events that a Marketo user expects to use in Smart Campaigns and conversion reporting, and has no rate limit worries.

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