Django loop through json object - django

Question

How to loop through a JSON object in Django template?
JSON:
"data": {
"node-A": {
"test1A": "val1A",
"test2A": "val2A",
"progress": {
"conf": "conf123A"
"loc": "loc123A"
},
"test3A": "val3A"
},
"node-B": {
"test1B": "val1B",
"test2B": "val2B",
"progress": {
"conf": "conf123B"
"loc": "loc123B"
},
"test3B": "val3B"
}
}
I am having trouble accessing the nested values "conf" and "lock" inside "progress". How can I access them in Django template if the data is passed as context i.e. return (request, 'monitor.html', {"data_context": json_data['data']})?

Answer 1

they way you have it set up, your data is in a dictionary called 'data_context'. To access what you need in the template it would be {{data_context.test1A}}.
to not have to use 'data_context.' try this instead,
return (request, 'monitor.html', json_data['data'].to_dict())

Answer 2

Dictionary lookup, attribute lookup and list-index lookups are implemented with a dot notation:
{{ my_dict.key.key_nested }}

Answer 3

As the JSON format behaves like a dictionary in Python, the data stored with the specified keys conf and loc should be accessible with the python notation for dictionaries. Since the provided JSON can be seen as a nested dictionary, you need to "concat" the keys respectively to get your desired data.
Your return statement returns a dictionary which I will call ret so the structure should be:
{"data_context": {
"node-A": {
"test1": "val1A",
"test2": "val2A",
"progress": {
"conf": "conf123A",
"loc": "loc123A"
},
"test3": "val3A"
},
"node-B": {
"test1B": "val1B",
"test2B": "val2B",
"progress": {
"conf": "conf123B",
"loc": "loc123B"
},
"test3": "val3B"
}
}
}
Therefor to access conf and loc:
ret["data_context"]["node-A"]["progress"]["conf"]
will get you the value stored at conf in node-A