Python library for Castle
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README.rst

Python SDK for Castle

Build Status

Castle analyzes device, location, and interaction patterns in your web and mobile apps and lets you stop account takeover attacks in real-time.

Installation

pip install castle

Configuration

import and configure the library with your Castle API secret.

from castle.configuration import configuration

# Same as setting it through Castle.api_secret
configuration.api_secret = ':YOUR-API-SECRET'

# For authenticate method you can set failover strategies: allow(default), deny, challenge, throw
configuration.failover_strategy = 'deny'

# Castle::RequestError is raised when timing out in milliseconds (default: 500 milliseconds)
configuration.request_timeout = 1000

# Whitelisted and Blacklisted headers are case insensitive and allow to use _ and - as a separator, http prefixes are removed
# Whitelisted headers
configuration.whitelisted = ['X_HEADER']
# or append to default
configuration.whitelisted = configuration.whitelisted + ['http-x-header']

# Blacklisted headers take advantage over whitelisted elements
configuration.blacklisted = ['HTTP-X-header']
# or append to default
configuration.blacklisted = configuration.blacklisted + ['X_HEADER']

Tracking

Here is a simple example of track event.

from castle.client import Client

castle = Client.from_request(request)
castle.track({
  'event': '$login.succeeded',
  'user_id': 'user_id'
})

The client will automatically configure the context for each request.

Signature

from secure_mode import signature

signature(user_id)

will create a signed user_id.

Async tracking

By default Castle sends requests synchronously. To send requests in a background worker you can generate data for a worker:

from castle.client import Client

context = Client.to_context(request)
options = Client.to_options({
  'event': '$login.succeeded',
  'user_id': user.id,
  'properties': {
    'key': 'value'
  },
  'user_traits': {
    'key': 'value'
  }
})

and use it later in a way

from castle.client import Client

client = Client(context)
client.track(options)

Impersonation mode

https://castle.io/docs/impersonation

Exceptions

CastleError will be thrown if the Castle API returns a 400 or a 500 level HTTP response. You can also choose to catch a more finegrained error.

Documentation

Documentation and links to additional resources are available at https://castle.io/docs