Ultimately if you would like to use the DICOM web data source to display the files in OHIF, then the Django server would have to serve the data to be DICOM web compliant (see DICOMweb™).
There is also DICOMJson which you could consider too.
To avoid having to create DICOM web server, there are also open source DICOM web servers available like Orthanc or (DCM4CHEE)[https://www.dcm4che.org/]