HTTP 100 Continue vs 415 Unsupported Media Type
HTTP 100 (Continue) is a 1xx Informational response, while 415 (Unsupported Media Type) is a 4xx Client Error response. 100 indicates that the server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected. In contrast, 415 means that the server refuses to accept the request because the Content-Type is not supported.
Описание
The server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected.
Когда вы это видите
When a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
Как исправить
This is an interim response — no fix needed. The client should continue sending the request body.
Описание
The server refuses to accept the request because the Content-Type is not supported.
Когда вы это видите
When sending JSON to an endpoint that only accepts XML, or missing the Content-Type header.
Как исправить
Set the correct Content-Type header matching the data format you're sending.
Ключевые различия
100 is a 1xx Informational response, while 415 is a 4xx Client Error response.
HTTP 100: The server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected.
HTTP 415: The server refuses to accept the request because the Content-Type is not supported.
You encounter 100 when when a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
You encounter 415 when when sending JSON to an endpoint that only accepts XML, or missing the Content-Type header.
Когда что использовать
For 100 (Continue): This is an interim response — no fix needed. The client should continue sending the request body. For 415 (Unsupported Media Type): Set the correct Content-Type header matching the data format you're sending.