Successful, Invalid, and Unauthorised Requests
What evidence shows that the paid workflow works under normal, invalid, duplicate, and unavailable-service conditions? Verify both the response and the resulting data state for every important request class.
What You Will Be Able to Decide
- Explain successful, invalid, and unauthorised requests in product and business terms.
- Apply this decision: Verify both the response and the resulting data state for every important request class.
- Recognise this material risk: the API returns an error while still making a partial or unauthorised change.
- Use this review: Repeat a report purchase with a failed payment, a refresh after checkout, and a delayed delivery before release.
A founder needs evidence that the product works beyond the most convenient demonstration path. This lesson gives you a concrete question to take into a build brief, proposal review, or product decision.
What evidence shows that the paid workflow works under normal, invalid, duplicate, and unavailable-service conditions? The course example is A paid report service with sign-in, checkout, and report delivery; use it to decide what evidence would justify the choice before a builder implements it.
What Does Successful, Invalid, and Unauthorised Requests Mean for Your Product?
A founder needs evidence that the product works beyond the most convenient demonstration path.
Use the illustrative service for this course (A paid report service with sign-in, checkout, and report delivery) to make the choice concrete. What evidence shows that the paid workflow works under normal, invalid, duplicate, and unavailable-service conditions?
Technical term
Successful, Invalid, and Unauthorised Requests
Request testing distinguishes valid operations from malformed, impossible, unauthenticated, and insufficiently authorised attempts.
How Should a Founder Use Successful, Invalid, and Unauthorised Requests?
For a paid report service with sign-in, checkout, and report delivery, ask what would happen if the api returns an error while still making a partial or unauthorised change.
For this decision, the useful standard is that the same expected result can be reproduced under normal, invalid, and failure conditions.
- Decision: Verify both the response and the resulting data state for every important request class.
- Evidence to request: show that the same expected result can be reproduced under normal, invalid, and failure conditions.
- Owner: name who will respond if the api returns an error while still making a partial or unauthorised change.
- Record the result in the test plan and recorded evidence.
- Practical review: Repeat a report purchase with a failed payment, a refresh after checkout, and a delayed delivery before release.
How Do You Choose an Approach to Successful, Invalid, and Unauthorised Requests?
What evidence shows that the paid workflow works under normal, invalid, duplicate, and unavailable-service conditions? Verify both the response and the resulting data state for every important request class.
The risk is that the api returns an error while still making a partial or unauthorised change. Compare a simpler option with the proposed one, including who will operate either choice.
- Describe the user or business outcome that must be protected.
- Identify the most credible failure and its consequence.
- Compare the simplest adequate approach with one realistic alternative.
- Set a review point for when the decision may need to change.
What Evidence Should You Accept for Successful, Invalid, and Unauthorised Requests?
What Warning Signs Should You Look For?
- The proposal does not address this risk: the API returns an error while still making a partial or unauthorised change.
- Nobody can show whether the same expected result can be reproduced under normal, invalid, and failure conditions.
- The decision has no named owner or review point.
What Should You Ask a Consultant?
- What changes for the user if we choose this approach to successful, invalid, and unauthorised requests?
- How have we reduced or accepted this risk: the API returns an error while still making a partial or unauthorised change.
- Can you demonstrate that the same expected result can be reproduced under normal, invalid, and failure conditions?
- Who owns the result, and when will we reconsider it?
Key takeaway
Key Takeaway
Verify both the response and the resulting data state for every important request class. Ask for evidence against the specific risk: the API returns an error while still making a partial or unauthorised change.