UploadPart Method

Uploads a multipart upload part.

Syntax

• C++
• Objective-C
• C

ANSI (Cross Platform)
int UploadPart(const char* lpszMultipartFileId, int iPartNumber);

Unicode (Windows)
INT UploadPart(LPCWSTR lpszMultipartFileId, INT iPartNumber);

- (void)uploadPart:(NSString*)multipartFileId :(int)partNumber;

#define MID_BACKBLAZEB2_UPLOADPART 36

IPWORKSCLOUD_EXTERNAL int IPWORKSCLOUD_CALL IPWorksCloud_BackblazeB2_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);

Remarks

This method uploads a new part for the multipart file upload specified by MultipartFileId. The part's number is specified by PartNumber; it must be a value in the range 1 to 10000, inclusive. If the specified multipart upload already has a part with the given PartNumber, it is replaced with the one created by this request.

The data to upload is taken from either the stream set using SetUploadStream, LocalFile, or FileData (whichever data is found in first, when checked in that order). All parts must be between 5MB and 5GB in size (except for the last part, which can be as small as 1 byte).

The currently-authenticated application key must have the writeFiles capability to call this method successfully, otherwise the server will return an error. Refer to the AccountCapabilities property for more information.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)