HTTP 100 Continue vs 400 Bad Request
HTTP 100 (Continue) is a 1xx Informational response, while 400 (Bad Request) 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, 400 means that the server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
الوصف
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.
متى تراه
When a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
كيفية الإصلاح
This is an interim response — no fix needed. The client should continue sending the request body.
الوصف
The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
متى تراه
When sending malformed JSON, missing required fields, or invalid query parameters.
كيفية الإصلاح
Check the request body format, validate all required fields, and ensure proper encoding.
الفروق الرئيسية
100 is a 1xx Informational response, while 400 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 400: The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
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 400 when when sending malformed JSON, missing required fields, or invalid query parameters.
متى تستخدم أيًا منهما
For 100 (Continue): This is an interim response — no fix needed. The client should continue sending the request body. For 400 (Bad Request): Check the request body format, validate all required fields, and ensure proper encoding.