If you're looking to get advanced data on a country, state or city then you'll want to check out the API Demo to learn the URIs required to get rich responses.

To use Geodata Solutions for dynamic dropdowns lists, the easiest way is to use our simple code snippet that can have to set up in minutes. However, if you're looking for a web service just for dropdown lists and our code snippet doesn't fit your requirements, or you have any other implementation where you just need the name of the location, then read on.

1. QUERYING THE API

The /restapi URI

You'll need to start by sending all of your queries to the https://geodata.solutions/restapi/ uri

The dd parameter

In order to tell the API that you're just wanting the names of locations, you MUST include a ?dd= parameter

• To limit the results by minimum population, use a 'pop' designator
  • pop10k - limits results to place with 10,000 people or more
  • pop100k - limits results to place with 100,000 people or more
  • pop1m - limits results to place with 1,000,000 people or more
  • pop10m - limits results to place with 10,000,000 people or more
• To order the results by population, add ordpop
• If you don't want any filtering or ordering, just add ?dd=1

nb. You can separate dd params by a dash, so to limit to places over 100,000 people and return the results in order of population, you can put ?dd=pop100k-ordpop

Click to view the results

https://geodata.solutions/restapi?dd=1 

https://geodata.solutions/restapi?dd=pop1m-ordpop

2. FETCHING STATES & CITIES

To get the states for a country, you just need to add a &country parameter with the code contained as the key in the country and state arrays 

https://geodata.solutions/restapi?dd=1&country=IN

https://geodata.solutions/restapi?dd=pop10k-ordpop&country=AU&state=NSW

3. USING THIS IN A FORM

You can use this in a form by adding javascript functions to onload and onchange events. More details to come soon.