Readme.md

Basic DESaccess login via API

To test the DESaccess login API and general programmatic access pattern, try the following. Define environment variables as shown, inserting your username and password. Then run the Python script to test that you can authenticate and fetch an API access token.

export DESACCESS_API_BASEURL=https://des.ncsa.illinois.edu
export DESACCESS_API_DB=desdr
export DESACCESS_API_USER=
export DESACCESS_API_PASS=

python desaccess_api.py

desaccess_api.py

#!/usr/bin/env python3

import os
import sys
import requests
import time
import json

try:
    username = os.environ['DESACCESS_API_USER']
    password = os.environ['DESACCESS_API_PASS']
    base_url = os.environ['DESACCESS_API_BASEURL']
    db = os.environ['DESACCESS_API_DB']

    # Import credentials and config from environment variables
    config = {
        'auth_token': '',
        'apiBaseUrl': '{}/desaccess/api'.format(base_url),
        'filesBaseUrl': '{}/files-desaccess/'.format(base_url),
        'username': username,
        'password': password,
        'database': db,
    }
except:
    sys.exit(1)


def login():
    """Obtains an auth token using the username and password credentials for a given database.
    """
    # Login to obtain an auth token
    r = requests.request( 'POST',
        '{}/login'.format(config['apiBaseUrl']),
        data={
            'username': config['username'],
            'password': config['password'],
            'database': config['database']
        },
        # verify=False
    )
    # Store the JWT auth token
    config['auth_token'] = r.json()['token']
    return config['auth_token']

if __name__ == '__main__':
    # Authenticate and store the auth token for subsequent API calls
    try:
        print('Logging in as user "{}" ("{}") and storing auth token...'.format(config['username'], config['database']))
        login()
    except:
        print('Login failed.')
        sys.exit(1)