PreserveHeaderFormat - Microservices Engine - Alibaba Cloud Documentation Center

Specifies whether to convert all letters of a header into lowercase letters. For requests and responses, HTTP/1.1 headers are not case-sensitive. By default, all letters of headers are converted into lowercase letters.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
mse:PreserveHeaderFormat	get	All Resources *	none	none

Request parameters

Parameter	Type	Required	Description	Example
GatewayUniqueId	string	Yes	The unique ID of the gateway.	gw-3f97e2989c344f35ab3fd62b19f1****
PreserveHeaderFormat	boolean	Yes	Specifies whether the request header is case-sensitive. Valid values: true false	true
AcceptLanguage	string	No	The language in which you want to display the results. Valid values: zh and en. zh indicates Chinese, which is the default value. en indicates English.	zh

Response parameters

Parameter	Type	Description	Example
	object	The response parameters.
RequestId	string	The request ID.	69AD2AA7-DB47-449B-941B-B14409DF****
Success	boolean	Indicates whether the request was successful. Valid values: `true` `false`	true
Code	integer	The status code. A value of 200 is returned if the request is successful.	200
ErrorCode	string	The status code.	Success
HttpStatusCode	integer	The HTTP status code.	200
Message	string	The message returned.	OK
DynamicCode	string	The dynamic part in the error message.	code
DynamicMessage	string	The dynamic part in the error message. This parameter is used to replace the %s variable in the ErrMessage parameter. Note The request parameter DtsJobId is invalid if The Value of Input Parameter %s is not valid is returned for ErrMessage and DtsJobId is returned for DynamicMessage.	The specified parameter is invalid.
Data	boolean	The returned data.	true

Examples

Sample success responses

JSONformat

{
  "RequestId": "69AD2AA7-DB47-449B-941B-B14409DF****",
  "Success": true,
  "Code": 200,
  "ErrorCode": "Success",
  "HttpStatusCode": 200,
  "Message": "OK",
  "DynamicCode": "code",
  "DynamicMessage": "The specified parameter is invalid.",
  "Data": true
}

Error codes

HTTP status code	Error code	Error message	Description
400	IllegalRequest	Invalid request:%s	Invalid request: %s
400	InvalidParameter	Parameter error:%s	Request parameter error: %s
403	NoPermission	You are not authorized to perform this operation:%s	You do not have the permission to use this interface:%s
404	NotFound	Not found:%s	The resource does not exist:%s
500	InternalError	Console error. Try again later:%s	Console error. Try again later: %s

For a list of error codes, visit the Service error codes.