You were watching a video from @code-queen and that video and tutorial for it is a great example for if you don’t want to use the new e-sign option in the Wix Forms app as it is available to Premium Ascend users only.
Youtube Video.
https://www.youtube.com/watch?v=IPYYPi91UC8&feature=youtu.be
Written Tutorial.
https://support.totallycodable.com/en/article/create-an-electronic-signature-with-wix-code-corvid-custom-form
Plus, using Nayeli’s version means that you can add it to your own user input form and not have to use the Wix Forms app either.
I think to be honest, it might have been more of a case that you are struggling to understand some parts of it, so this is why you should always use her written tutorial and watch her youtube video if you need more info on it.
Remember that with the video you can always stop and go back to a certain part, the same as the tutorial itself.
So you would be best to follow the links that Heath has supplied and have a read about Wix Corvid and using it so that you can get to understand it and what it can do for you.
As for the tutorial, if you follow the written one then Nayeli clearly shows you in step 5 where you add code to the page which will retrieve the image and then add it to your dataset through the setFieldValue function before saving it to your dataset and then showing a thank you strip.
Step 5: Add the Code to your Page
Now you will write a code to retrieve the image created by the HTML code to be set as the value in our dataset and then save the dataset. The code in our example looks like this:
$w.onReady(function () {
$w("#html1").onMessage((event) => {
let signStamp = event.data;
console.log(signStamp);
$w("#saveSignatureDataset").setFieldValue("signature", signStamp);
$w("#saveSignatureDataset").save()
.then(() => {
//do something after the code saves, such as redirect to another page or show a thank you message.
// In our example we collapse and expand a thank you strip.
})
.catch((err) => {
let errMsg = err;
});
});
});