HTTP Request & Response
An HTTP request is what a client sends to a server. It has a method, address, headers, and sometimes a body. The response returns a status, headers, and data.
Another example
A form sends JSON. A 422 response gives field errors, while a 201 response gives the new record.
Main parts
- 01Originating request
- 02Resolution or processing hop
- 03Response, timing, and failure
Use it when
Use clear status codes and structured bodies so success and failure follow known rules.
Do not use it when
Never treat every response as a success or put sensitive details in an error.
Name used in code
fetch() / HTTP status Before you ship
Check contracts and invariants, authorization, and input limits. Test retries, one-time effects, timeouts, and partial failures. Verify data integrity, compatibility, monitoring, recovery, and rollback.
Outcome: Design or review HTTP Request & Response for this system while keeping data correct, secure, and easy to operate. User context: A form sends JSON. A 422 response gives field errors, while a 201 response gives the new record. Technical concept or control: HTTP Request & Response. Why it fits: Use clear status codes and structured bodies so success and failure follow known rules. Do not use it when: Never treat every response as a success or put sensitive details in an error. Engineering requirements: Define inputs, outputs, contracts, and rules that must always hold. Set authorization and input checks. Define failures, timeouts, retries, one-time effects, data moves, and compatibility limits. Operations: Add useful signals and logs that hide sensitive data. Set capacity limits and write an operator guide. Test recovery and rollback. Acceptance criteria: Contract and failure-path tests pass. Data and authorization rules still hold during retries and partial failures. Check performance limits, monitoring, recovery, and rollback. Evidence and limits (evidence boundary): The standard covers only the listed scope. It does not choose the visual style, product decision, or Vibulary example. Unknowns to confirm: Where the code runs, data stores, traffic shape, consistency needs, and the security boundary. Also confirm the compatibility period, service goals, and rollback limits.
Check this request
Review the current use of HTTP Request & Response. Definition: An HTTP request is what a client sends to a server. It has a method, address, headers, and sometimes a body. The response returns a status, headers, and data. Release checks: Check contracts and invariants, authorization, and input limits. Test retries, one-time effects, timeouts, and partial failures. Verify data integrity, compatibility, monitoring, recovery, and rollback. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.