HTTP Status Codes
HTTP Status Code Reference Guide
100 Continue (HTTP Status Code 100)
Status code 100 Continue is a temporary response indicating that the server has received the initial part of a request and has not yet rejected it.
101 Switching Protocol (HTTP Status Code 101 )
Status code 101 Switching Protocols is a response indicating that the server is willing to change the protocol being used for the current connection.
102 Processing WebDAV (HTTP Status Code 102)
HTTP status code 102 "Processing" is an informational status code indicating that the server has received the client's request and is currently processing it, but has not yet completed the operation.
103 Early Hints (HTTP Status Code 103)
HTTP status code 103 "Early Hints" is an informational status code that allows the server to send some hint information to the client before the complete response is ready, while it has already understood and is processing the client's request.
200 OK (HTTP Status Code 200)
HTTP status code 200 "OK" is a success status code indicating that the server has successfully processed the client's request and returned the expected response.
201 Created (HTTP Status Code 201)
HTTP status code 201 "Created" is a success status code indicating that the request has been successfully processed by the server and a new resource has been created. This status code is typically returned for POST requests when the result of the request is the creation of a new resource on the server.