Backend
You might say
Where does the part users can't see run, and who handles things like login and saving data?
The server-side part people usually cannot see that handles requests and dataAfter someone submits a sign-up form, the backend checks the phone number and code, creates the account, and returns success or failure to the page. Passwords, secret keys, and permission rules belong here, not only in the interface.
Which parts handle one save?
Highlighted steps show what this term is responsible for in the flow.
API
/api/profileURL · method · body
—
responsestatus · body
Waiting for request
- ·Signed-in user?
- ·Name length OK?
- ·Allowed to update?
- ·Write only after checks
profilestable
| id | name | updated |
|---|---|---|
| 7 | Momo | yesterday |
1 / 6Edit and save
FrontendRead the input and show a pending state
Quick checkChoose the best answer
The page reports success, but the database has no new record. What should the backend check first?
You can say this to an AI Agent
The page reports success, but the database has no new record. Check whether the backend received the request, passed validation, and completed the write before returning success. Fix the cause, save again, and verify both the server result and the database record.
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