HD4DP v2 CSV Upload
General description of the CSV Upload
In order to make users familiar with preparing csv files for upload, we have organized a training of which the recording is shared with you below.
Furthermore, this page explains the functioning of the CSVUploader feature of HD4DP v2. The CSVUploader feature is aimed to do a bulk upload of records: by filling a csv file, one record per row represents one submission so a user can fill as much records as needed.
Training
Below you can review the HD4DP v2 CSV Upload training organized by healthdata.be:
Architecture
The CSVUploader is located under hd-connect/csvuploader. It uses both hd-connect-csvuploader and hd-connect-proxy modules.
The general architecture of the CSVUploader is explained in the sequence diagram below.

Third-party libraries and frameworks
- Apache Camel: https://camel.apache.org/
- Spring Boot
Testing and working
- The CSVUploader creates a folder at root level (SFTP for end-user, or hd-all for developer) that contains a subfolder per existing organization.
- The CSVUploader will poll with a delay of 1 min, process the csv file and then create 3 folders:
- ARCHIVE folder: contains the source csv file.
- RESULTS folder: contains the results of processing the csv file. This file contains the specified data, and the final status of the processing: Success or Error. If an error occurred, the error message is displayed. For multiple uploads, the result is added to the end of the result file each time.
- ERROR folder: this folder is created if the csv test file was not processed, due to an I/O error (file corrupted, not found etc.). So for now, only technical errors are caught and the source csv file is moved to that folder instead of the ARCHIVE folder. In principle, this folder should contain any result that is an error. The RESULT folder should only contain results that end with a SUCCESS status.
Formats
Some formats are specific. In addition to this, detailed information about the codes and the formats used for the Author group, NISS code, status, Postal Code, "Date" - "Date:Time", repeatable fields and multiple choice fields are available here.
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