Receiving data in bulk

The bulk transfer method of DV updates advertisements on the site by sending a file containing all advertisements. The site compares the supplied advertisements with the already existing advertisements and process the resulting actions (adding new advertisements, updating existing advertisements and deleting old advertisements). A single data delivery is called a batch.

Various options supported by DV:

Sending incremental media updates
To reduce unnecessary data traffic, the media associated with the advertisement (for example the images of a vehicle) will not be sent every time. Instead, DV only sends images that are new or have been changed.
One large file / one file per advertiser
DV is able to send all advertisements of all advertisers in one large file, but it is also possible to send the advertisements of each advertiser in a separate file.
Delivery protocols
Data can be transferred in various ways, for example:
- DV can transfer the data via FTP to the FTP server of the site;
- DV can push the data via HTTP to the web server of the site;
- DV can make the data available (at predefined times) at the FTP server of DV;
- DV can make the data available (at predefined times) at the web server of DV;
- DV can send the data using a SOAP service set up by the site
Multiple delivery times
DV can send files anywhere between once and 10 times a day.
Data formats
DV supports all common file formats like XML, JSON, CSV, etc.
Character encoding
DV supports the most common character encodings like UTF-8 (with or without BOM), ISO 8859-1, ISO 8859-15 and Windows-1252.
Combining multiple files and/or compression
It is possible to have the data file containing the advertisements and the (new and changed) images combined into one archive, for example in a ZIP- or TAR-file. Compression is also possible.
Skipping unnecessary batches
DV is able to suspend data delivery as long as there are no changes in the advertisements, thus eliminating unnecessary data transfers.

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