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- 400 BAD request HTTP error code meaning? - Stack Overflow
A 400 means that the request was malformed In other words, the data stream sent by the client to the server didn't follow the rules In the case of a REST API with a JSON payload, 400's are typically, and correctly I would say, used to indicate that the JSON is invalid in some way according to the API specification for the service
- java - How to respond with an HTTP 400 error in a Spring MVC . . .
Change your return type to ResponseEntity<>, and then you can use the below for 400: return new ResponseEntity<>(HttpStatus BAD_REQUEST); And for a correct request: return new ResponseEntity<>(json,HttpStatus OK); After Spring 4 1 there are helper methods in ResponseEntity which could be used as:
- How do I fix a 400 Bad Request error in . Net Core POST operation?
You have to send the anti forgery token with your request if you want to use the decorator [ValidateAntiForgeryToken]
- post - OpenAI Chat Completions API error 400: Bad Request (migrating . . .
Apart from what is in the accepted answer, there are many other cases where a 400 could happen because of validation issues For example, I got 400 (from the chat completion API) and the issue was, the username I specified had a in it message: "'asdf hjkl' does not match '^[a-zA-Z0-9_-]{1,64}$' - 'messages 2 name'"
- java - Server returned HTTP response code: 400 - Stack Overflow
These caused java io IOException Server returned HTTP response code: 400 in the following code: java net URL url = new URL(urlString); java io InputStream in = url openStream(); If you copy the above url and paste in browser, you will realize that browser adds '%20' for the spaces
- Getting 400 error Bad request using axios - Stack Overflow
For every post request, the client first sends an OPTIONS request to check whether the server is ready to accept the connection
- Python Requests POST - error 400 - Stack Overflow
Looks like you are trying to obtain an OAuth 2 0 access token using the client_credientials grant This is described in RFC6749
- The difference between the 400 and 404 HTTP errors
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