Update readme.md

readme.md

@@ -1,4 +1,95 @@
 UUP dump API
 ------------
 
-Work in progress project to provide needed queries for other UUP dump projects in a easy way.
+### Functions
+#### fetchupd.php: `uupFetchUpd($arch, $ring, $flight, $build);`
+Fetches latest update information from Windows Update servers.
+
+Parameters:
+ - `arch` - Architecture of build to find
+   - **Supported values:** `amd64`, `arm64`, `x86`
+
+ - `ring` - Ring to use when fetching information
+   - **Supported values:** `WIF`, `WIS`, `RP`
+
+ - `flight` - Flight to use when fetching information
+   - **Supported values:** `Active`, `Skip`, `Current`
+   - **NOTE:** `Skip` is for `WIF` ring only. `Current` is for `RP` ring only.
+
+ - `build` - Build number to use when fetching information
+   - **Supported values:** > 15063 and < 65536
+
+#### get.php: `uupGetFiles($updateId, $usePack, $desiredEdition);`
+Fetches files from `updateId` update and parses to array.
+
+Parameters:
+ - `updateId` - Update identifier
+   - **Supported values:** any update UUID
+
+ - `usePack` - Generate list of files for selected language
+   - **Supported values:** language name in xx-xx format
+
+ - `desiredEdition` - Generate list of files for selected edition
+   - **Supported values:** any update UUID
+   - **NOTE:** You need to specify `usePack` to get successful request
+
+#### listeditions.php: `uupListEditions($lang);`
+Outputs list of supported editions for selected language.
+
+Parameters:
+ - `lang` - Generate list for selected language
+   - **Supported values:** language name in xx-xx format
+
+#### listid.php: `uupListIds();`
+Outputs list of updates in fileinfo database.
+
+Parameters:
+ - None
+
+#### listlangs.php: `uupListLangs();`
+Outputs list of languages supported by project.
+
+Parameters:
+ - None
+
+#### updateinfo.php: `uupUpdateInfo($updateId, $onlyInfo);`
+Outputs specified information of specified `updateId`.
+
+Parameters:
+ - `updateId` - Update identifier
+   - **Supported values:** any update UUID
+
+ - `onlyInfo` - Key to output
+   - **Supported values:** any string
+
+#### shared/main.php: `uupApiVersion();`
+Returns version of the API.
+
+Parameters:
+ - None
+
+### Error codes thrown by API
+**fetchupd.php**
+ - UNKNOWN_ARCH
+ - UNKNOWN_RING
+ - UNKNOWN_FLIGHT
+ - UNKNOWN_COMBINATION
+ - ILLEGAL_BUILD
+ - EMPTY_FILELIST
+
+**get.php**
+ - UNSUPPORTED_LANG
+ - UNSPECIFIED_LANG
+ - UNSUPPORTED_EDITION
+ - UNSUPPORTED_COMBINATION
+ - EMPTY_FILELIST
+
+**listeditions.php**
+ - UNSUPPORTED_LANG
+
+**listid.php**
+ - NO_FILEINFO_DIR
+
+**updateinfo.php**
+ - UPDATE_INFORMATION_NOT_EXISTS
+ - KEY_NOT_EXISTS