Address validation form API or Database on iOS? -


i'm working on ios app users can purchase products , them delivered home. before actual purchase, user have input delivery address in united kingdom.

for example, user types in postcode "sw1a 2ab", , uipicker shows listing possible matches such "11 downing st".

i know if there ressources or services online (free ideally) address lookup based on uk postcode user provide on form. since app launched in uk , products can delivered here, don't have worry other kinds of address formats.

it sounds after postcode address lookup within uk involves using royal mail postcode address file (paf) comes cost, reliable source uk address data. can bought data file directly royal mail several apis exist, meaning don't need worry storing , updating on 29 million addresses.

i work allies computing provide cloud hosted rest based api, uses royal mail's daily updates , can paid on per search basis.

of course other providers exist offering similar apis, royal mail's powered paf website has full list of them.

so long application have access internet can make use of these, although idea present users full address form if don't have internet connection.


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