Appendix A. Parameters Passed to an Open Application
The following tables describe the parameters passed by the YAP engine to an Open Application at runtime.
Table A.1. Parameters Passed to an Open Application
| Information | Source | Format | Variable | Description |
| User Information | ||||
| Viewer Information | Cookie in the session | POST | yap_viewer_guid | GUID of the person signed in to Yahoo! in the browser |
| Owner Information | Owner of the profile | POST | yap_owner_guid | GUID of the person whose identity information is in the profile |
| Page Language Requested | Publisher | HEADER | Accept-Language | Language priority list as defined in RFC 2616 section 14.4, with quality values assigned so as to maintain the priority order of the list provided by the publisher. |
| Page Timezone | Publisher | POST | yap_tz | Timezone Identifier, e.g., "Asia/Seoul". |
| Page Jurisdiction | Publisher | POST | yap_jurisdiction | ISO 3166 country code identifying the country whose rules should be used for content moderation. |
| Session Information | ||||
| Viewer's Access Token | Registration and YAP | POST | yap_viewer_access_token | OAuth 1.1 Access Token |
| Viewer's Access Token Secret | Registration and YAP | POST | yap_viewer_access_token_secret | OAuth 1.1 Token Secret |
| AppID | YAP | POST | yap_appid | Application ID |
| Dropzone | Publisher | POST | yap_dropzone_id | |
| Hosting Page URL | Publisher | POST | yap_page_url | The URL where the application is hosted. |
| YAP Authentication | ||||
| Consumer Key | YAP Engine | POST | yap_consumer_key | OAuth 1.0 Consumer Key |
| Request Time | YAP Engine | POST | yap_time | Timestamp of the request in Unix time. |
| Request Signature Method | YAP Engine | POST | oauth_signature_method | HMAC_SHA1 signature method |
| Request Signature | YAP Engine | POST | oauth_signature | OAuth 1.0 Signature |
| Browser Information | ||||
| User Agent | Browser | HEADER | HTTP_USER_AGENT | |
| Accept | Browser | HEADER | HTTP_ACCEPT | |
| Accept Encoding | Browser | HEADER | HTTP_ACCEPT_ENCODING | |
| Viewer Information | ||||
| View | Publisher | POST | yap_view | The request is targeted to either the Small View or Canvas View. |