This topic describes how to install, configure, and use the Oracle NoSQL Database Python SDK. There are several supported environments:
- Oracle NoSQL Database Cloud Service
- Oracle NoSQL Database Cloud Simulator
- Oracle NoSQL Database on-premise
The Python SDK requires:
- Python version 2.7.5 or 3.5 or later, running on Mac, Windows, or Linux.
- For the Oracle NoSQL Cloud Service:
- An Oracle Cloud Infrastructure account
- A user created in that account, in a group with a policy that grants the desired permissions.
- For the Oracle NoSQL Database Cloud Simulator:
- See Download the Oracle NoSQL Cloud Simulator to download and start the Cloud Simulator.
- For the on-premise Oracle NoSQL Database:
Downloading and Installing the SDK¶
You can install the Python SDK through the Python Package Index (PyPI), or alternatively through GitHub.
To install from GitHub:
Download the SDK from GitHub. The download is a zip containing a whl file and documentation.
Extract the files from the zip.
Use the following command to install the SDK:
pip install borneo-*-py2.py3-none-any.whl
If you’re unable to install the whl file, make sure pip is up to date. Use
pip install -U pipand then try to install the whl file again.
Configuring the SDK¶
This section describes configuring the SDK for the 3 environments supported. Skip to the section or sections of interest. The areas where the environments and use differ are
- Authentication and authorization. This is encapsulated in the AuthorizationProvider interface. The Cloud Service is secure and requires a Cloud Service identity as well as authorization for desired operations. The Cloud Simulator is not secure at all and requires no identity. The on-premise configuration can be either secure or not and it also requires an instance of the proxy service to access the database.
- API differences. Some classes and methods are specific to an environment. For example, the on-premise configuration includes methods to create namespaces and users and these concepts don’t exist in the cloud service. Similarly, the cloud service includes interfaces to specify and acquire throughput information on tables that is not relevant on-premise.
Configure for the Cloud Service¶
The SDK requires an Oracle Cloud account and a subscription to the Oracle NoSQL Database Cloud Service. If you do not already have an Oracle Cloud account you can start here. Credentials used for connecting an application are associated with a specific user. If needed, create a user for the person or system using the api. See Adding Users.
Using the SDK with the Oracle NoSQL Database Cloud Service also requires installation of the Oracle Cloud Infrastructure (OCI) Python SDK:
pip install oci
Acquire Credentials for the Oracle NoSQL Database Cloud Service¶
These steps only need to be performed one time for a user. If they have already been done they can be skipped. You need to obtain the following credentials:
- Tenancy ID
- User ID
- API signing key (private key in PEM format)
- Private key pass phrase, only needed if the private key is encrypted
- Fingerprint for the public key uploaded to the user’s account
See Required Keys and OCIDs for detailed descriptions of the above credentials and the steps you need to perform to obtain them. Specifically:
Supplying Credentials to an Application¶
Credentials are used to establish the initial connection from your application to the service. There are 2 ways to supply credentials to the application:
- Directly, via API
- Using a configuration file
Both mechanisms use
borneo.iam.SignatureProvider to handle credentials.
If using a configuration file it’s default location is $HOME/.oci/config, but
the location can be changed using the api.
The format of the configuration file is that of a properties file with the format of key=value, with one property per line. The contents and format are:
[DEFAULT] tenancy=<your-tenancy-id> user=<your-user-id> fingerprint=<fingerprint-of-your-public-key> key_file=<path-to-your-private-key-file> pass_phrase=<optional-pass-phrase-for-key-file>
The Tenancy ID, User ID and fingerprint should be acquired using the
instructions above. The path to your private key file is the absolute path of
the RSA private key. The order of the properties does not matter. The
[DEFAULT] portion is the profile. A configuration file may contain multiple
profiles with the target profile specified in the
Provide credentials without a configuration file:
from borneo.iam import SignatureProvider # # Use SignatureProvider directly via API. Note that the # private_key argument can either point to a key file or be the # string content of the private key itself. # at_provider = SignatureProvider( tenant_id='ocid1.tenancy.oc1..tenancy', user_id='ocid1.user.oc1..user', private_key=key_file_or_key, fingerprint='fingerprint', pass_phrase='mypassphrase')
Provide credentials using a configuration file in the default location, using the default profile:
from borneo.iam import SignatureProvider # # Use SignatureProvider with a default credentials file and # profile $HOME/.oci/config # at_provider = SignatureProvider()
Provide credentials using a configuration file in a non-default location and non-default profile:
from borneo.iam import SignatureProvider # # Use SignatureProvider with a non-default credentials file and # profile # at_provider = SignatureProvider(config_file='myconfigfile', profile_name='myprofile')
Connecting an Application¶
The first step in any Oracle NoSQL Database Cloud Service application is to
create a handle used to send requests to the service. The handle is configured
using your credentials and other authentication information as well as the
endpoint to which the application will connect. An example endpoint is to use
the region Regions.US_ASHBURN_1. Information on regions can be found in
from borneo import NoSQLHandle, NoSQLHandleConfig, Regions from borneo.iam import SignatureProvider # # Required information: # # the region to which the application will connect region = Regions.US_ASHBURN_1 # if using a specified credentials file credentials_file = <path-to-your-credentials-file> # # Create an AuthorizationProvider # at_provider = SignatureProvider(config_file=credentials_file) # # create a configuration object # config = NoSQLHandleConfig(region, at_provider) # # create a handle from the configuration object # handle = NoSQLHandle(config)
See examples and test code for specific details. Both of these use config*.py files for configuration of required information.
Configure for the Cloud Simulator¶
The Oracle NoSQL Cloud Simulator is a useful way to use this SDK to connect to a local server that supports the same protocol. The Cloud Simulator requires Java 8 or higher.
See Download the Oracle NoSQL Cloud Simulator to download and start the Cloud Simulator.
- Download and start the Cloud Simulator
- Follow instructions in the examples/config.py file for connecting examples to the Cloud Simulator. By default that file is configured to communicate with the Cloud Simulator, using default configuration.
The Cloud Simulator does not require the credentials and authentication information required by the Oracle NoSQL Database Cloud Service. The Cloud Simulator should not be used for deploying applications or important data.
Before using the Cloud Service it is recommended that users start with the Cloud Simulator to become familiar with the interfaces supported by the SDK.
Configure for the On-Premise Oracle NoSQL Database¶
The on-premise configuration requires a running instance of the Oracle NoSQL database. In addition a running proxy service is required. See Oracle NoSQL Database Downloads for downloads, and see Information about the proxy for proxy configuration information.
If running a secure store, a certificate path should be specified through the REQUESTS_CA_BUNDLE environment variable:
$ export REQUESTS_CA_BUNDLE=<path-to-certificate>/certificate.pem:$REQUESTS_CA_BUNDLE
In addition, a user identity must be created in the store (separately) that has
permission to perform the required operations of the application, such as
manipulated tables and data. The identity is used in the
If the store is not secure, an empty instance of
borneo.kv.StoreAccessTokenProvider is used. For example:
from borneo import NoSQLHandle, NoSQLHandleConfig from borneo.kv import StoreAccessTokenProvider # # Assume the proxy is running on localhost:8080 # endpoint = 'http://localhost:8080' # # Assume the proxy is secure and running on localhost:443 # endpoint = 'https://localhost:443' # # Create the AuthorizationProvider for a secure store: # ap = StoreAccessTokenProvider(user_name, password) # # Create the AuthorizationProvider for a not secure store: # ap = StoreAccessTokenProvider() # # create a configuration object # config = NoSQLHandleConfig(endpoint).set_authorization_provider(ap) # # set the certificate path if running a secure store # config.set_ssl_ca_certs(<ca_certs>) # # create a handle from the configuration object # handle = NoSQLHandle(config)