Basic Usage

Firstly add the wagtailstreamforms.blocks.WagtailFormBlock() in any of your streamfields:

body = StreamField([
    ...
    ('form', WagtailFormBlock())
    ...
])

And make sure your Page inherits from the StreamFormPageMixin mixin:

class BasicPage(StreamFormPageMixin, Page):

This allows forms to be posted to the current page and processed, any validation errors will appear on the round trip.

Example:

from wagtail.wagtailadmin.edit_handlers import StreamFieldPanel
from wagtail.wagtailcore.fields import StreamField
from wagtail.wagtailcore.models import Page
from wagtailstreamforms.blocks import WagtailFormBlock
from wagtailstreamforms.models import StreamFormPageMixin


class BasicPage(StreamFormPageMixin, Page):

    body = StreamField([
        ('form', WagtailFormBlock())
    ])

    content_panels = Page.content_panels + [
        StreamFieldPanel('body'),
    ]