pyravendb-embedded 4.1.1.3

RavenDB Embedded library to run ravendb in embedded way

Overview

Pyravendb-Embedded is a RavenDB package for running RavenDB in embedded mode.

EmbeddedServer().start_server()
with EmbeddedServer().get_document_store("Embedded") as store:
    with store.open_session() as session:
        session.store(User(name="Ilay", age=4))
        session.save_changes()

Installation

Install from PyPi, as pyravendb-embedded_.

pip install pyravendb

Install Pyravendb-Embedded from pip will provide you with a copy of RavenDB server binaries files as well

Usage

Start a server

To start RavenDB server you only need to run start_server() method from EmbeddedServer instance and that’s it.

EmbeddedServer.start_server()

To be more in control about your server start_server method can take one parameter server_options.

ServerOptions

• framework_version - The framework version to run the server with.

• data_directory - Where to save the database data (if None the files will be saved in RavenDB folder in the base folder).

• server_url - The url the server will be opened if None the server will open on local host.

• dotnet_path - Where dotnet.exe is located if dotnet in the PATH nothing needed here (If .net core is not installed in your machine

  you can download dotnet binaries and just put the path to it)

• command_line_args - A list of all server command args.

server_options = ServerOptions(data_directory="MYPATH/RavenDBDataDir")
EmbeddedServer().start_server(server_options)

Security

There are two options to make ravendb secured in Pyravendb-Embedded:

1. secured(certificate_path, certificate_password=None) - For this option you will put a path to a .pfx file for the server and a password to the file if you have one.

   server_options = ServerOptions()
   server_options.secured("PATH_TO_PFX_CERT_FILE", "PASSWORD_TO_CERT_FILE")
   EmbeddedServer.start_server(server_options)

2. secured_with_exec(self, cert_exec, cert_exec_args, server_cert_fingerprint, client_cert_path, client_cert_password=None) - For this option you will have to put executable program (ex. powershell, python, etc) and the arguments for him, the fingerprint of the cert file you can use pyravendb Utils for that (see get_cert_file_fingerprint method), the client cert path and the password if you have one.

   server_options = ServerOptions()
   sserver_options.secured_with_exec("powershell",
                                    "C:\\secrets\\give_me_cert.ps1",
                                    Utils.get_cert_file_fingerprint("PATH_TO_PEM_CERT_FILE"),
                                    "PATH_TO_PEM_CERT_FILE")
   EmbeddedServer.start_server(server_options)

Get Document Store

After initialize and start the server we can use get_document_store method to be able to get a DocumentStore and start work with RavenDB as normal.

EmbeddedServer().start_server()
with EmbeddedServer().get_document_store("Test") as store:
    pass

get_document_store method can get or only the database_name or DatabaseOption

DatabaseOptions

• database_name - The name of the database

• skip_creating_database - get_document_store will create a new database if the database is not exists, if this option if True we won’t create the database (Default False).

# In this example we won't create the Test database if not exists will raise an exception

database_options = DatabaseOptions(database_name="Test", skip_creating_database=True)
with EmbeddedServer().get_document_store(database_options) as store:
  # Your code here

Open the RavenDB studio in the browser

To open RavenDB studio from Pyravendb-Embedded you can use open_studio_in_browser method and the studio will open automatically one your default browser.

EmbeddedServer().open_studio_in_browser()

Acknowledgments

EmbeddedServer class is a singleton!

Every time we use EmbeddedServer() we will get the same instance.