Exploratory Testing of an HTTP REST API with Postman and Fiddler proxy

workaround for postman proxy issue shown in this video- start proxy first, check browser sends traffic through proxy, then start postman pointing at proxy. I'm not sure if electron didn't shut down properly, or what. But when I reboot, and started in that order, Postman worked through proxy fine.
A short exploratory testing session on a REST API running locally using Postman and Fiddler.

This session was a simple exploratory testing session based around the documentation supplied by the REST API application.

Postman v 5 failed to respond to the `--proxy-server=localhost:8888` command line option - later investigation revealed that Postman still supports --proxy-server so I don't know what caused that issue in this video
Postman v 5 can use proxies that act as default system proxy e.g. Fiddler or Charles
Using `Accept` header to change the content format of the response payload
Content Type validation of payloads in Postman
using different HTTP Verbs from Postman
Save requests in Postman to build up a 'collection' of requests
using Basic Auth in Postman requests
Pretty print payloads in JSON and XML in Postman
Using examples in documentation as test data
Why we should create custom data that makes testing self-documenting
405 is returned with a Method is not valid
201 returned on POST messages which create entities


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