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`APISpecError: Could not find endpoint for view` when using flask MethodViews #125

boosh opened this issue May 5, 2017 · 2 comments


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commented May 5, 2017

I've seen #85 which seems to suggest Flask's MethodViews should be supported. I've added a URL rule with:

app.add_url_rule('/articles/<publication>', view_func=Articles.as_view('articles'))

But when I try to add a path for my schema with:

spec.definition('Article', schema=ArticleSchema)

I get an error:

apispec.exceptions.APISpecError: Could not find endpoint for view <class 'mypackage.resources.articles.Articles'>

I've tried passing various combinations of Articles, Articles.as_view('articles'), etc to add_path but nothing works. I've also tried the function in #85, but it still doesn't work.

I'm assuming this is a bug?


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commented Jul 10, 2017

This is my current solution to this problem. If there's interest, I can do a PR to apispec.ext.flask.

from urllib.parse import urljoin

from apispec.ext.flask import _rule_for_view, flaskpath2swagger
from apispec import Path, utils
from flask import current_app

def path_from_method_view(spec, method_view, **kwargs):
    rule = _rule_for_view(method_view)
    path = flaskpath2swagger(rule.rule)
    app_root = current_app.config['APPLICATION_ROOT'] or '/'
    path = urljoin(app_root.rstrip('/') + '/', path.lstrip('/'))
    operations = {}
    for method in method_view.methods:
        method_name = method.lower()
        view = getattr(method_view.view_class, method_name)
        docstring_yaml = utils.load_yaml_from_docstring(view.__doc__)
        operations[method_name] =  docstring_yaml or dict()

    return Path(path=path, operations=operations or None)


with application.test_request_context():
    for view in views:  # where `views` is an iterable of your `MethodView.as_view` funcs
        spec.add_path(method_view=view)  # now just use `method_view=view` instead of `view=view`

@sloria sloria added the bug label Jul 11, 2017


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commented Jul 11, 2017

I would certainly review and merge a PR fixing this!

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