How to return multiple values using API in django

Question

I am brand new to django.

This is the api json value I called from internet:

{'message': '',
 'result': [{'name': 'ABC',   <------
             'Type': 'True',  <-----
             'Fee': 0.0005},
             {'name': 'DEF', <-------
             'Type': 'False',  <------
             'Fee': 0.004},
}

I want to put name and type to the webpage using HTML.

ABC True
DEF False

Do I need to modify models.py? Please give me an example. thank you The only think I know is to use for loop in HTML, but I do not know does it work?

seuling · Accepted Answer · 2018-05-08 07:47:40Z

2

Just using forloop in template.

{% for r in result %}
{{ r.name }} {{ r.Type }}
{% endfor %}

Updated answer with `view`

your result is come from context.

Basically, django view render data to your own template. context_processors do that for you, and it's defined in settings.py (TEMPLATES - OPTIONS - context_processors).

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            str(ROOT_DIR.path('templates')),
        ],
        # 'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
                # you can add your own processors
                'your_app.path.to.custom_processors',
            ],
            'loaders': [
                'django.template.loaders.filesystem.Loader',
                'django.template.loaders.app_directories.Loader',
            ],
        },
    },
]

Here's more detail information about context (official django docs)

It's why you can use request, user and other context data in your template.

If you want to use context in all templates, you can add your own context_processors. But in many times, you just want context only in particular template. (like your situation).

Then you can add your data to context, in your views.

If you're using Class Based View (I recommend using CBV), you can add by get_context_data(). like this.

class ProductView(ListView):
    model = Product
    template_name = 'best.html'
    context_object_name = 'products'

    def get_context_data(self, **kwargs):
        context = super(ProductView, self).get_context_data(**kwargs)
        context['test'] = 'test context data'
        return context

You can add your own context data in existing context.

If you're using FBV, you can render template with your context. There're many ways to render (render, render_to_response, and so on.. You can check django docs for this. I guess you should use render cause render_to_response deprecated in django 2.0)

from django.shortcuts import render

def my_view(request):
    # View code here...
    context = {'test': 'test coooontext data' }
    return render(request, 'myapp/index.html', context)

By passing your own context data in views, you can use this in template.

So if you want to pass only 'name' and 'type', you can pass data just you want to use, not all. It's more effective working in view then template. I hope it helps.

edited May 8, 2018 at 7:47

answered May 8, 2018 at 6:49

seuling

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3 Comments

Stack Ray Over a year ago

thank you, but I have a hard time to learn where is the 'result' variable comes from? Do I need to make def variable in views.py first?

seuling Over a year ago

It depends on your view. I will update answer for view

Stack Ray Over a year ago

thank you for your update! That way I know more on TEMPLATES in settings.py ()

Usman Maqbool · Accepted Answer · 2018-05-08 07:16:47Z

0

In view.py

you can return data like

url = 'xxx'
response = requests.get(url)
# if your response is like : {'message': '', 'result': [{'name': 'ABC',  'Type': 'True', 'Fee': 0.0005}, {'name': 'DEF','Type': 'False', 'Fee': 0.004}] }
# then

list_result = response['result']

render(request, 'template.html', {"list_result": list_result})

Then you can send that list_result on HTML page and import render using

from django.shortcuts import render

To display data of response on HTML page use:

{% for data in list_result %}
  {{ data.name }} {{ data.Type }}
{% endfor %}

edited May 8, 2018 at 7:16

answered May 8, 2018 at 6:54

Usman Maqbool

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3 Comments

Stack Ray Over a year ago

It said 'Response' object is not subscriptable. url = 'xxx' get = requests.get(url) response = get['result']

Usman Maqbool Over a year ago

what is the result of get ?

Stack Ray Over a year ago

thank you! It works! I did not put {"list_result": list_result} at the end of render!

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