Just created Azure Mobile App service calls return http 400 error

1
votes

Here's what I'm doing.

  1. Install latest Azure SDK (by the date)
  2. Open Visual Studio 2013
  3. Create a new Azure Mobile App project. The simple service is created with TodoItem DataObject and 2 simple controllers - TodoItemController and ValuesController
  4. Do not change anything
  5. Start the project

The service is started and hosted in local IISExpress on url http://localhost:50993/ (the port may vary). The "This mobile app is up and running" web page is opened in the browser. But http 400 error is returned when I try to invoke some GET-actions: for example http://localhost:50993/api/values or http://localhost:50993/tables/TodoItem.

Any ideas? Is something wrong in my environment or is that me doing something wrong?

Thanks.

3
azureazure-mobile-services
What is the actual 400 error when you run this through Postman? If you watch the debugging, then is anything printed? – Adrian Hall
My guess is that you have not added the X-ZUMO-VERSION header to the request though. See azure.microsoft.com/en-us/documentation/articles/… – Adrian Hall
@zhe did my answer below help ? – Rami Sarieddine

3 Answers

2
votes

I guess you can opt out of version checking by setting a value of true for the app setting MS_SkipVersionCheck. Specify this either in your web.config or in the Application Settings section of the Azure Portal.

1
votes

This generally happens when you don't add a ZUMO-API-VERSION header to the request. This is required when making requests from a REST client, but the mobile client SDKs add the header automatically.

To fix, add the header ZUMO-API-VERSION with value of 2.0.0. To learn more, see https://azure.microsoft.com/en-us/documentation/articles/app-service-mobile-client-and-server-versioning/.

-2
votes

Adding

http://localhost:50993/tables/Location?ZUMO-API-VERSION=2.0.0

at the end will do the trick.