Restrictions and Compatibility

Note the following restrictions and compatibility issues when importing or exporting APIs on APIG:

APIG parameter restrictions:
- APIG does not support the configuration of request parameters in the formData and body locations.
- APIG does not support the configuration of parameters consumes and produces.
- The names of header parameters are not case-sensitive.
Backend policy restrictions are as follows:
- Default backend type HTTP: The HTTP and HTTP-VPC backends are supported.
- Default backend type HTTP-VPC: The HTTP and HTTP-VPC backends are supported.
- Default backend type function: Only the function backend is supported.
- Default backend type mock: Only the mock backend is supported.

**Table 1** Mappings between Swagger objects and APIG's objects
Swagger Object	APIG Object	Import	Export
info.title	API group name	Importing to a new API group: a new API group name Importing to an existing API group: not used An API group name consists of 3–64 characters, starting with a letter. Only letters, digits, and underscores (_) are allowed.	API group name
info.description	API group description	Importing to a new API group: description about the new group Importing to an existing API group: not used	API group description
info.version	Version	Not used	User-defined version The current time is used as the API group name if no name is specified.
host	API group domain name	Not used	The first user-defined domain name of an API group is preferentially used. The independent domain name of the API group is used if the API group is not bound with any user-defined domain names.
basePath	-	Merged with the request path of each API	Not used
paths.path	API request path	Merged with basePath to use as an API request path	API request path
operation.operationId	API name	API name	API name
operation.description	API description	API description	API description
operation.parameters	API frontend request parameters	API request parameters	API request parameters
operation.schemes	API frontend request protocol	API request protocol	API request protocol
operation.responses	-	Not used	Default response
operation.security	API authentication mode	API authentication mode Used together with x-apigateway-auth-type	API authentication mode Used together with x-apigateway-auth-type

**Table 2** Differences in request parameter types
Swagger	APIG	Supported Attribute
integer long float double	number	maximum minimum default enum required description
string	string	maxLength minLength default enum required description
Others	-	-

**Table 3** Differences in API request path template syntax
Syntax	Swagger	APIG
/users/{userName}	Supported	Supported
/users/prefix-{userName} /users/{userName}-suffix /users/prefix-{userName} -suffix	Supported	Not supported for frontend request definition Supported for backend request definition
/users/{proxy+}	Not supported	Supported for frontend request definition Not supported for backend request definition

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