100
Informational
100 Continue
The server has received the request headers and the client should proceed to send the request body.
Definition (RFC 9110)
HTTP status code 100 100 Continue is defined in RFC 9110 (HTTP Semantics), Section 15.2.1 — the current authoritative specification for HTTP semantics, published June 2022, which obsoletes the older RFC 7231 and RFC 2616.
Description
The 100 Continue status code indicates that the initial part of a request has been received and has not yet been rejected by the server. The client should continue sending the request body.
This is commonly used with the Expect: 100-continue header, allowing clients to check if the server will accept the request before sending a large body.
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