You'll probably need to use some kind of Postcode lookup service, such as Postcode Anywhere or something similar. They have a javascript API that you can use to get address details when the postcode is filled out and populate the rest of the form. You'll be better off doing it all client side with Contour, as it'll be hard to plug something like that in on the server side.
Auto fill address information based on zip/postal code
How would I achieve this?
You'll probably need to use some kind of Postcode lookup service, such as Postcode Anywhere or something similar. They have a javascript API that you can use to get address details when the postcode is filled out and populate the rest of the form. You'll be better off doing it all client side with Contour, as it'll be hard to plug something like that in on the server side.
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