Write an in-memory buffer to the ODB as a blob
@param id return the id of the written blob @param repo repository where to blob will be written @param buffer data to be written into the blob @param len length of the data @return 0 or an error code
See Implementation
Write an in-memory buffer to the ODB as a blob
@param id return the id of the written blob @param repo repository where to blob will be written @param buffer data to be written into the blob @param len length of the data @return 0 or an error code