Question

I built a custom template tag and I wanna know if there is a way to access request.META in my template tag function.

Answer 1

Write your tag to accept context, then access request by context. For example for Simple tags:

@register.simple_tag(takes_context=True)
def foo(context):
    request = context['request']
    request.META
    ...

And ensure request is inside the template context, by either pass request to Context() ;or add 'django.core.context_processors.request' to TEMPLATE_CONTEXT_PROCESSORS in settings and use RequestContext for rendering.

Also, you could simply pass request.META to Context()