I have recently been working on a project that involves Trade Me and their not too bad API.

However something that appeared to lack documentation was the Region ID’s that are needed to search for auctions via region in their General Search API.

So I delved around the rest of their website and eventually managed to get the region ID’s, which some people may find useful:

ID: Region:
50 North Island
1 Northland
2 Auckland
3 Waikato
4 Bay of Plenty
5 Gisborne
6 Hawke’s Bay
7 Taranaki
8 Wanganui
9 Manawatu
11 Wairarapa
12 Wellington
60 South Island
13 Nelson Bays
14 Marlborough
15 West Coast
16 Canterbury
17 Timaru - Oamaru
18 Otago
19 Southland