CODEWITHSUNDEEP
pythonapiflaskroutesblueprint
Randomizer
Randomizer

Reputation: 505

URL prefix in Flask Python deployed to Heroku using Blueprint

I'm trying to create a URL prefix for my web app's api. I want the api to return when I enter api.website.com/parameter.I am using Flask and Blueprint

api_bp = Blueprint('api', __name__,                        
    template_folder='templates', 
    url_prefix='/api')

@api_bp.route("/")
def get_monkey_api():
    address = request.args.get('address', 
None)
    if address and is_a_banano_address(address):
        return monkey_api(banano_address)
    else:
        return render_template("NotABananoAddress.html"), 400

@api_bp.route("/<address>")
def monkey_api(address):
    monKey = monkey_data_generator.generate_monKey(address)
    if monKey.status is not 'Citizen':
        return "API data on vanity monKeys does not exist"
    return jsonify(monKey.serialize())

app = Flask(__name__)
app.register_blueprint(api_bp, url_prefix='/api')

Most of the code in unrelated. The fact is when I I am entering 

api.website.com?address=xxx

or when I am entering

api.website.com/xxx

I should get my API as JSON back but I'm not. On localhost it doesn't return anything and doesn't show the prints that I even insert into the code and of course on Heroku it does not recognize the project when I using the prefix.

Upvotes: 1

Views: 970

Answers (1)

Martijn Pieters
Martijn Pieters

Reputation: 1122152

You gave your blueprint a URL prefix:

api_bp = Blueprint('api', __name__,                        
    template_folder='templates', 
    url_prefix='/api')

and again with

app.register_blueprint(api_bp, url_prefix='/api')

That means you need to use hostname/api/ to get to get_monkey_api() view function, or hostname/api/xxxx to get to the monkey_api() view function.

Remove the URL prefixes if you want the routes to be found at the site root. If you want the blueprint to work for a separate subdomain, then use the subdomain='api' option, not a URL prefix.

Note that for subdomains to work, you need to configure the SERVER_NAME config option so that subdomains can be detected. If you want to test this locally, edit your /etc/hosts file to add some development aliases that point to your server, then set SERVER_NAME to match.

Upvotes: 1

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