In order to use the endpoints to convert your json data into a .pptx you need to structure your json in a certain way. Below is an example of that structure.
You can use the example below as a base for creating your own json payload.
{"base_settings": {"file_name":"test_demo","company_template":"" },"body": [{"table_text":"Demo","question_text":"What is Demo?","base_text":"A Demo is something that is used for presentation!", "rows": ["Cardiology", "Endocrinology / Diabetology", "General Practice / Family Medicine", "Internal Medicine", "Other"],
"columns": [{"text":"Total","items": [{"text":"Total n=100","base":100,"data": [16,5,37,42,0] }] }, {"text":"Gender","items": [{"text":"Male","base":100,"data": [16,5,37,42,0] }, {"text":"Female","base":100,"data": [20,15,47,22,10] }] }],"view_settings": {"slide_master_index":0,"slide_layout_index":0,"placeholder_index":0,"chart_type":"bar" } }]}
Continue to the next sections to dive into each of the sections in the request json data.