HTTPVersion Property

The HTTP version to use.

Data Type

String

Default Value

"1.1"

Remarks

This property specifies the HTTP version used by the adapter. Possible values are:

• "1.0"
• "1.1" (default)
• "2.0"

When using HTTP/2 ("2.0") additional details apply. Please see notes below for details.

HTTP/2 Notes

When using HTTP/2 only secure (TLS/SSL) connections are currently supported. Attempting to use a plaintext URL with HTTP/2 will result in an error.

If the server does not support HTTP/2 the adapter will automatically use HTTP/1.1 instead. This is done in order to provide compatibility without the need for any additional settings. The AllowHTTPFallback setting controls whether this behavior is allowed (default) or disallowed.

HTTP/2 is supported on all versions of Windows. If the Windows version is prior to Windows 8.1/Windows Server 2012 R2 the internal security implementation will be used. If the Windows version is Window 8.1/Windows Server 2012 R2 or later the system security libraries will be used by default.

The HTTPVersion context property will be set on the BizTalk message to indicate which HTTP version was used.