Exercises

1. How would we send a delete request to the following URL: https://httpbin.org/delete?
2. What parameters would we need to use Invoke-WebRequest with a stateful endpoint?
3. We try to connect to a website and see the following error:

   Invoke-WebRequest: The remote certificate is invalid because of errors in the certificate chain: NotTimeValid

   How can we continue to the site with Invoke-WebRequest?

4. Which type of API is stateful? What does this mean?
5. We sign up to a web service and get an authentication token. We encode the token using ConvertTo-SecureString, store it in a variable called $token, and then use the variable to create a web request like this:

   Invoke-WebRequest -Uri 'https://webservice.com/endpoint' -Headers @{Authorization = "Bearer $token"}

   We get an authentication error. Have we done something wrong, or is the token bad?

6. Get the latitude and longitude of the ISS right now. You can use http://api.open-notify.org/iss-now.json.
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