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import boto3
import streamlit as st
from boto3.dynamodb.conditions import Key
from dotenv import dotenv_values
config = dotenv_values(".env")
if config:
AWS_ACCESS_KEY_ID = config.get('AWS_ACCESS_KEY_ID')
AWS_SECRET_ACCESS_KEY = config.get('AWS_SECRET_ACCESS_KEY')
else:
AWS_ACCESS_KEY_ID = st.secrets['AWS_ACCESS_KEY_ID']
AWS_SECRET_ACCESS_KEY = st.secrets['AWS_SECRET_ACCESS_KEY']
def get_db():
dynamodb = boto3.resource(
'dynamodb',
region_name='ap-northeast-2',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
)
print("dynamodb connected", dynamodb)
return dynamodb
# put_item
def put_item(table, item):
print("item", item)
response = table.put_item(Item=item)
if response['ResponseMetadata']['HTTPStatusCode'] == 200:
print('Item successfully inserted')
else:
print('Error inserting item')
# get_item
def get_item(table, item):
response = table.get_item(Key=item)
if 'Item' in response:
print('Item successfully retrieved')
return response['Item']
else:
print('Item not found')
return None
def get_lastest_item(table, name_of_partition_key, value_of_partition_key, limit_num=10):
response = table.query (
KeyConditionExpression=Key(name_of_partition_key).eq(value_of_partition_key),
ScanIndexForward=False,
Limit=limit_num
)
return response['Items'] |