Hand-coding REST versioning

Hand-coding versioning is the alternative to using the advanced REST API versioning. You must hand-code for each REST operation.

There are two options for hand-coding versioning.

Set the WSPath attribute to specify the version in the URI. See Versioning with URI.
Add a custom HTTP header, such as "api-version", with the version. See Versioning with custom header.

There are advantages and disadvantage in using either method and the choice depends on your preference.