Jinja2 - How to loop a json list?

Question

How can I loop a json list with jinja2?

I have this json list,

[
    {
        \"first_name\": \"John\",
        \"last_name\": \"Smith\",
        \"user         


        

Answer 1

your json list contains dictionaries; you need to access the dictionary elements differently than you would class members; try:

{{ user['first_name'] }}

this works for me (python 3.4 and python 2.7)

import json
from jinja2 import Template

json_str = '''[{"first_name": "John", "last_name": "Smith", "user_id": 4, 
    "address": null}, {"first_name": "Jane", "last_name": "Heart",
    "user_id": 5, "address": null}, {"first_name": "Dom",
    "last_name": "Robinsons", "user_id": 6, "address": null},
    {"first_name": "Pete", "last_name": "Hand", "user_id": 7,
    "address": null}]'''

users = json.loads(json_str)

tmpl = Template('''

   {% for user in users %}
   
   {% endfor %}
{{ user['first_name'] }}
''')

print(tmpl.render(users = users))

output:

   
John

   
Jane

   
Dom

   
Pete