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bigchaindb-driver-0.6.2
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Python driver for BigchainDB
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | bigchaindb-driver-0.6.2 |
| نام | bigchaindb-driver |
| نسخه کتابخانه | 0.6.2 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | BigchainDB |
| ایمیل نویسنده | dev@bigchaindb.com |
| آدرس صفحه اصلی | https://github.com/bigchaindb/bigchaindb-driver |
| آدرس اینترنتی | https://pypi.org/project/bigchaindb-driver/ |
| مجوز | Apache Software License 2.0 |
.. Copyright BigchainDB GmbH and BigchainDB contributors
SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
Code is Apache-2.0 and docs are CC-BY-4.0
.. image:: media/repo-banner@2x.png
.. image:: https://badges.gitter.im/bigchaindb/bigchaindb-driver.svg
:alt: Join the chat at https://gitter.im/bigchaindb/bigchaindb-driver
:target: https://gitter.im/bigchaindb/bigchaindb-driver?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
.. image:: https://img.shields.io/pypi/v/bigchaindb-driver.svg
:target: https://pypi.python.org/pypi/bigchaindb-driver
.. image:: https://img.shields.io/travis/bigchaindb/bigchaindb-driver/master.svg
:target: https://travis-ci.org/bigchaindb/bigchaindb-driver
.. image:: https://img.shields.io/codecov/c/github/bigchaindb/bigchaindb-driver/master.svg
:target: https://codecov.io/github/bigchaindb/bigchaindb-driver?branch=master
.. image:: https://readthedocs.org/projects/bigchaindb-python-driver/badge/?version=latest
:target: http://bigchaindb.readthedocs.io/projects/py-driver/en/latest/?badge=latest
:alt: Documentation Status
BigchainDB Python Driver
==========================
* Free software: Apache Software License 2.0
* Check our `Documentation`_
.. contents:: Table of Contents
Features
--------
* Support for preparing, fulfilling, and sending transactions to a BigchainDB
node.
* Retrieval of transactions by id.
Install
----------
The instructions below were tested on Ubuntu 16.04 LTS. They should also work on other Linux distributions and on macOS. The driver might work on Windows as well, but we do not guarantee it. We recommend to set up (e.g. via Docker on Windows) an Ubuntu VM there.
We recommend you use a virtual environment to install and update to the latest stable version using `pip` (or `pip3`):
.. code-block:: text
pip install -U bigchaindb-driver
That will install the latest *stable* BigchainDB Python Driver. If you want to install an Alpha, Beta or RC version of the Python Driver, use something like:
.. code-block:: text
pip install -U bigchaindb_driver==0.5.0a4
The above command will install version 0.5.0a4 (Alpha 4). You can find a list of all versions in `the release history page on PyPI <https://pypi.org/project/bigchaindb-driver/#history>`_.
More information on how to install the driver can be found in the `Quickstart`_
BigchainDB Documentation
------------------------------------
* `BigchainDB Server Quickstart`_
* `The Hitchhiker's Guide to BigchainDB`_
* `HTTP API Reference`_
* `All BigchainDB Documentation`_
Usage
----------
Example: Create a divisible asset for Alice who issues 10 token to Bob so that he can use her Game Boy.
Afterwards Bob spends 3 of these tokens.
If you want to send a transaction you need to `Determine the BigchainDB Root URL`_.
.. code-block:: python
# import BigchainDB and create an object
from bigchaindb_driver import BigchainDB
bdb_root_url = 'https://example.com:9984'
bdb = BigchainDB(bdb_root_url)
# generate a keypair
from bigchaindb_driver.crypto import generate_keypair
alice, bob = generate_keypair(), generate_keypair()
# create a digital asset for Alice
game_boy_token = {
'data': {
'token_for': {
'game_boy': {
'serial_number': 'LR35902'
}
},
'description': 'Time share token. Each token equals one hour of usage.',
},
}
# prepare the transaction with the digital asset and issue 10 tokens for Bob
prepared_token_tx = bdb.transactions.prepare(
operation='CREATE',
signers=alice.public_key,
recipients=[([bob.public_key], 10)],
asset=game_boy_token)
# fulfill and send the transaction
fulfilled_token_tx = bdb.transactions.fulfill(
prepared_token_tx,
private_keys=alice.private_key)
bdb.transactions.send_commit(fulfilled_token_tx)
# Use the tokens
# create the output and inout for the transaction
transfer_asset = {'id': fulfilled_token_tx['id']}
output_index = 0
output = fulfilled_token_tx['outputs'][output_index]
transfer_input = {'fulfillment': output['condition']['details'],
'fulfills': {'output_index': output_index,
'transaction_id': transfer_asset['id']},
'owners_before': output['public_keys']}
# prepare the transaction and use 3 tokens
prepared_transfer_tx = bdb.transactions.prepare(
operation='TRANSFER',
asset=transfer_asset,
inputs=transfer_input,
recipients=[([alice.public_key], 3), ([bob.public_key], 7)])
# fulfill and send the transaction
fulfilled_transfer_tx = bdb.transactions.fulfill(
prepared_transfer_tx,
private_keys=bob.private_key)
sent_transfer_tx = bdb.transactions.send_commit(fulfilled_transfer_tx)
Compatibility Matrix
--------------------
+-----------------------+---------------------------+
| **BigchainDB Server** | **BigchainDB Driver** |
+=======================+===========================+
| ``>= 2.0.0b7`` | ``0.6.2`` |
+-----------------------+---------------------------+
| ``>= 2.0.0b7`` | ``0.6.1`` |
+-----------------------+---------------------------+
| ``>= 2.0.0b7`` | ``0.6.0`` |
+-----------------------+---------------------------+
| ``>= 2.0.0b5`` | ``0.5.3`` |
+-----------------------+---------------------------+
| ``>= 2.0.0b5`` | ``0.5.2`` |
+-----------------------+---------------------------+
| ``>= 2.0.0b5`` | ``0.5.1`` |
+-----------------------+---------------------------+
| ``>= 2.0.0b1`` | ``0.5.0`` |
+-----------------------+---------------------------+
| ``>= 2.0.0a3`` | ``0.5.0a4`` |
+-----------------------+---------------------------+
| ``>= 2.0.0a2`` | ``0.5.0a2`` |
+-----------------------+---------------------------+
| ``>= 2.0.0a1`` | ``0.5.0a1`` |
+-----------------------+---------------------------+
| ``>= 1.0.0`` | ``0.4.x`` |
+-----------------------+---------------------------+
| ``== 1.0.0rc1`` | ``0.3.x`` |
+-----------------------+---------------------------+
| ``>= 0.9.1`` | ``0.2.x`` |
+-----------------------+---------------------------+
| ``>= 0.8.2`` | ``>= 0.1.3`` |
+-----------------------+---------------------------+
`Although we do our best to keep the master branches in sync, there may be
occasional delays.`
License
--------
* `licenses`_ - open source & open content
Credits
-------
This package was initially created using Cookiecutter_ and the `audreyr/cookiecutter-pypackage`_ project template. Many BigchainDB developers have contributed since then.
.. _Documentation: https://docs.bigchaindb.com/projects/py-driver/
.. _pypi history: https://pypi.org/project/bigchaindb-driver/#history
.. _Quickstart: https://docs.bigchaindb.com/projects/py-driver/en/latest/quickstart.html
.. _BigchainDB Server Quickstart: https://docs.bigchaindb.com/projects/server/en/latest/quickstart.html
.. _The Hitchhiker's Guide to BigchainDB: https://www.bigchaindb.com/developers/guide/
.. _HTTP API Reference: https://docs.bigchaindb.com/projects/server/en/latest/http-client-server-api.html
.. _All BigchainDB Documentation: https://docs.bigchaindb.com/
.. _Determine the BigchainDB Root URL: https://docs.bigchaindb.com/projects/py-driver/en/latest/connect.html
.. _licenses: https://github.com/bigchaindb/bigchaindb-driver/blob/master/LICENSES.md
.. _Cookiecutter: https://github.com/audreyr/cookiecutter
.. _`audreyr/cookiecutter-pypackage`: https://github.com/audreyr/cookiecutter-pypackage
.. Copyright BigchainDB GmbH and BigchainDB contributors
SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
Code is Apache-2.0 and docs are CC-BY-4.0
Changelog
=========
0.6.2 (2018-11-03)
------------------
Changed
^^^^^^^
* In setup.py, changed python-rapidjson==0.6.0 to ~=0.6.0,
and changed requests>=2.11.0 to >=2.20.0
0.6.1 (2018-10-21)
------------------
Fixed
^^^^^
* Fixed the problem with a docs page (Handcrafting Transactions) that wouldn't build.
0.6.0 (2018-10-20)
------------------
Changed
^^^^^^^
* Added support for deterministic keypair generation from a 32-byte seed.
See pull request #487 by external contributor @excerebrose
* Pinned cryptoconditions==0.8.0 in setup.py
Removed
^^^^^^^
* The send() function was removed. See pull request #483.
Known issues
^^^^^^^^^^^^
* Builds of the Handcrafting Transactions page started failing again,
in Travis CI and on ReadTheDocs.
0.5.3 (2018-09-12)
------------------
Changed
^^^^^^^
* Fixed a failing unit test
* Pinned cryptoconditions==0.7.2 in setup.py
* Fixed the Handcrafting Transactions page in the docs
0.5.2 (2018-08-31)
-------------------
Added
^^^^^
* Cap exponential backoff depending on timeout value for reasonable waiting time in event of network recovery. `#470 <https://github.com/bigchaindb/bigchaindb-driver/pull/470>`
* Update cryptoconditions dependency because of security vulnerability CVE-2018-10903. `#472 <https://github.com/bigchaindb/bigchaindb-driver/pull/472>`
0.5.1 (2018-08-23)
---------------------
Added
^^^^^
* Support for BigchainDB server v2.0.0.b5.
* added round-robin strategy to connect to nodes of the BigchainDB network `BEP 14 <https://github.com/bigchaindb/BEPs/tree/master/14>`_
0.5.0 (2018-06-14)
---------------------
Added
^^^^^
* Added three new methods to send/post a transaction as discussed `here <https://github.com/bigchaindb/bigchaindb/issues/2307>`_:
* ``send_commit``
* ``send_async``
* ``send_sync``
Deprecated
^^^^^^^^^^
* ``send()`` under ``TransactionEndpoint``, and available
via ``BigchainDB.transactions``. Replaced by the above three methods:
``send_commit()``, ``send_async()``, and ``send_sync()``.
0.5.0a4 (2018-05-07)
---------------------
* `Removed dependencies from BigchainDB Server package <https://github.com/bigchaindb/bigchaindb-driver/pull/411>`_.
0.5.0a2 (2018-04-18)
---------------------
* `The default mode for sending a transaction is now commit <https://github.com/bigchaindb/bigchaindb-driver/issues/386>`_.
* `The metadata endpoint was added <https://github.com/bigchaindb/bigchaindb-driver/issues/347>`_.
* Support for BigchainDB server v2.0.0a2.
0.5.0a1 (2018-04-03)
--------------------
There were **many** changes between BigchainDB 1.3 and BigchainDB 2.0 Alpha, too many to list here. We wrote a series of blog posts to summarize most changes, especially those that affect end users and application developers:
* `Some HTTP API Changes in the Next Release <https://blog.bigchaindb.com/some-http-api-changes-in-the-next-release-49612a537b0c>`_.
* `Three Transaction Model Changes in the Next Release <https://blog.bigchaindb.com/three-transaction-model-changes-in-the-next-release-dadbac50094a>`_.
0.4.1 (2017-08-02)
------------------
Fixed
^^^^^
* Handcrafting transactions documentation. `Pull request #312
<https://github.com/bigchaindb/bigchaindb-driver/pull/312>`_.
* Quickstart guide. `Pull request #316
<https://github.com/bigchaindb/bigchaindb-driver/pull/316>`_.
0.4.0 (2017-07-05)
------------------
Added
^^^^^
* Support for BigchainDB server (HTTP API) 1.0.0.
0.3.0 (2017-06-23)
------------------
Added
^^^^^
* Support for BigchainDB server (HTTP API) 1.0.0rc1.
* Support for crypto-conditions RFC draft version 02.
* Added support for text search endpoint ``/assets?search=``
0.2.0 (2017-02-06)
------------------
Added
^^^^^
* Support for BigchainDB server 0.9.
* Methods for ``GET /`` and ``GET /api/v1``
Changed
^^^^^^^
* Node URLs, passed to ``BigchainDB()`` MUST not include the api prefix
``'/api/v1'``, e.g.:
* BEFORE: ``http://localhost:9984/api/v1``
* NOW: ``http://localhost:9984``
0.1.0 (2016-11-29)
------------------
Added
^^^^^
* Support for BigchainDB server 0.8.0.
* Support for divisible assets.
Removed
^^^^^^^
* ``create()`` and ``transfer()`` under ``TransactionEndpoint``, and available
via ``BigchainDB.transactions``. Replaced by the three "canonical"
transaction operations: ``prepare()``, ``fulfill()``, and ``send()``.
* Support for client side timestamps.
0.0.3 (2016-11-25)
------------------
Added
^^^^^
* Support for "canonical" transaction operations:
* ``prepare``
* ``fulfill``
* ``send``
Deprecated
^^^^^^^^^^
* ``create()`` and ``transfer()`` under ``TransactionEndpoint``, and available
via ``BigchainDB.transactions``. Replaced by the above three "canonical"
transaction operations: ``prepare()``, ``fulfill()``, and ``send()``.
Fixed
^^^^^
* ``BigchainDB()`` default node setting on its transport class. See commit
`0a80206 <https://github.com/bigchaindb/bigchaindb-driver/commit/0a80206407ef155d220d25a337dc9a4f51046e70>`_
0.0.2 (2016-10-28)
------------------
Added
^^^^^
* Support for BigchainDB server 0.7.0
0.0.1dev1 (2016-08-25)
----------------------
* Development (pre-alpha) release on PyPI.
Added
^^^^^
* Minimal support for ``POST`` (via ``create()`` and ``transfer()``), and
``GET`` operations on the ``/transactions`` endpoint.
0.0.1a1 (2016-08-12)
--------------------
* Planning release on PyPI.
زبان مورد نیاز
| مقدار | نام |
|---|---|
| >=3.5 | Python |
نحوه نصب
نصب پکیج whl bigchaindb-driver-0.6.2:
pip install bigchaindb-driver-0.6.2.whl
نصب پکیج tar.gz bigchaindb-driver-0.6.2:
pip install bigchaindb-driver-0.6.2.tar.gz