Appendix B. HTTP Headers

This document lists the request and response headers of the Yahoo Social APIs. For details, see RFC2616 Header Field Definitions.

HTTP Request Headers

Header Required Description
Accept No Request a particular content type. Valid values: application/json, application/xml.
Accept-Encoding No Request content encoding such as gzip.
Accept-Language No Request a particular language. Supported where localized strings are generated, such as Updates event descriptions. Affects sort order. The lang query parameter will override this header.
Authorization Yes Include appropriate authorization token.
Host No Formats the host portion of embedded links to other social data.
If-Modified-Since No Conditional GET.
If-Unmodified-Since No Conditional GET.

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