From a jinja html file, I want to consume & print the kwargs passed from python/flask. I pass variables into flask render_template, however, I can't figure out how to get the kwargs from jinja. This is a minimal flask example:
from flask import Flask, render_template, request
app = Flask(__name__)
@app.route("/foo", methods=['POST'])
def foo():
return render_template("mypage.html", alpha=request.form.get('alpha'),
beta=request.form.get('beta'))
This is the jinja html file mypage.html:
<html><body><ul>
{% for k, v in kwargs.items() %}
<li>{{ k }}{{ v }}</li>
{% endfor %}
</ul></body></html>
This is the error when I try to post to the page:
File "/usr/lib/python3.8/site-packages/jinja2/environment.py", line 430, in getattr
return getattr(obj, attribute)
jinja2.exceptions.UndefinedError: 'kwargs' is undefined
Very sorry if this is a duplicate, but I can't find this question/answer anywhere.
your program needs to match template's kwargs:
from flask import Flask, render_template, request
app = Flask(__name__)
@app.route("/foo", methods=['POST'])
def foo():
kwargs = {'alpha': request.form.get('alpha'),
'beta': request.form.get('beta'),
}
return render_template("mypage.html", kwargs=kwargs)