To setup the Postman collections follow these steps:
1. Download and register for Postman.
2. Click File | Import ....
3. Select Import From Link.
4. Paste the following two URLs and click Import after each.
https://raw.githubusercontent.com/selectedtech/Samples/master/QnAMakerPostmanCollection/QnA%20Maker%20Postman%20Collection.postman_collection.json
https://raw.githubusercontent.com/selectedtech/Samples/master/QnAMakerPostmanCollection/QnA%20Maker%20Environment.postman_environment.json
You should now see the QnA Maker Postman Collection collection on the left had side Collections pane.
5. Click on the No environment drop down in top right hand corner.
6. Select QnA Maker Environment.
7. Click the eye icon to the the right and then click Edit.
8. Enter in to the current (not initial) variables your values (e.g. Subscription Key, region, host, ...)
9. Select Update. Close the Manage Environments dialog. Select one of the requests from the QnA Maker Postman Collection and click Send button on right hand side.