dash-auth-external

dash-auth-external

Integrate your dashboards with 3rd party APIs and external OAuth providers.

Overview

Do you want to build a Plotly Dash app which pulls user data from external APIs such as Google, Spotify, Slack etc?

Dash-auth-external provides a simple interface to authenticate users through OAuth2 code flow. Allowing developers to serve user tailored content.

Installation

Dash-auth-external is distributed via PyPi

pip install dash-auth-external

Usage

#using spotify as an example
AUTH_URL = "https://accounts.spotify.com/authorize"
TOKEN_URL = "https://accounts.spotify.com/api/token"
CLIENT_ID = "YOUR_CLIENT_ID"

# creating the instance of our auth class
auth = DashAuthExternal(AUTH_URL, TOKEN_URL, CLIENT_ID)

We then pass the flask server from this object to dash on init.

app = Dash(__name__, server= auth.server)

That's it! You can now define your layout and callbacks as usual.

To obtain your access token, call the get_token method of your Auth object. NOTE This can ONLY be done in the context of a dash callback.

...

app.layout = html.Div(
[
html.Div(id="example-output"),
dcc.Input(id="example-input")
])

@app.callback(
Output("example-output", "children"),
Input("example-input", "value")
)
def example_callback(value):
    token = auth.get_token()
     ##The token can only be retrieved in the context of a dash callback

    token_data = auth.get_token_data()
    # get_token_data can be used to access other data returned by the OAuth Provider
    print(token)
    print(token_data)

    return token

Results in something like:

>>> fakeToken123
>>> {
    "access_token" : "fakeToken123",
    "user_id" : "lucifer",
    "some_other_key" : 666,
    "expires_at" : "judgmentDay"
}

Refresh Tokens

If your OAuth provider supports refresh tokens, these are automatically checked and handled in the get_token method.

Check if your OAuth provider requires any additional scopes to support refresh tokens

Troubleshooting

If you hit 400 responses (bad request) from either endpoint, there are a number of things that might need configuration.

Make sure you have checked the following

• Register your redirect URI with OAuth provider!

The library uses a default redirect URI of http://127.0.0.1:8050/redirect.

Contributing

Contributions, issues, and ideas are all more than welcome.