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https://github.com/nakagami/micropg

PostgreSQL database driver for MicroPython
https://github.com/nakagami/micropg

Last synced: 3 months ago
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PostgreSQL database driver for MicroPython

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README

        

=============
micropg
=============

A MicroPython PostgreSQL database driver.

Installation
-----------------

use upip
::

$ micropython -m upip install micropg

or

copy a module file.
::

$ cd $(HOME)/.micropython/lib
$ wget https://github.com/nakagami/micropg/raw/master/micropg.py

Example
-----------------

Query::

import micropg
conn = micropg.connect(host='127.0.0.1',
user='postgres',
password='secret',
database='database_name',
use_ssl=False)
cur = conn.cursor()

cur.execute('select foo, bar from baz')
for r in cur.fetchall():
print(r[0], r[1])

# execute with parameter
cur.execute('select foo, bar from baz where name=%s ', ['nakagami'])
for r in cur.fetchall():
print(r[0], r[1])

conn.close()

Restrictions and Unsupported Features
--------------------------------------

- Supported Authentication METHOD are only 'trust', 'md5' and 'scram-sha-256'.
- Not support for array data types.
- Not support for prepared statements.

If you use md5 authentication METHOD, you may need a patch
https://github.com/nakagami/micropg/issues/2

For CPython
---------------------

I also wrote a pure Python driver.
https://github.com/nakagami/minipg