stable-diffusion-aws-extension/middleware_api/workflows/list_workflows.py

70 lines
1.7 KiB
Python

import json
import logging
import os
import boto3
from aws_lambda_powertools import Tracer
from common.ddb_service.client import DynamoDbUtilsService
from common.response import ok
from common.util import get_query_param
from libs.data_types import Workflow
from libs.utils import response_error, decode_last_key, encode_last_key
tracer = Tracer()
workflows_table = os.environ.get('WORKFLOWS_TABLE')
ddb = boto3.resource('dynamodb')
table = ddb.Table(workflows_table)
logger = logging.getLogger(__name__)
logger.setLevel(os.environ.get('LOG_LEVEL') or logging.ERROR)
ddb_service = DynamoDbUtilsService(logger=logger)
@tracer.capture_lambda_handler
def handler(event, ctx):
_filter = {}
try:
logger.info(json.dumps(event))
exclusive_start_key = get_query_param(event, 'exclusive_start_key')
limit = int(get_query_param(event, 'limit', 10))
scan_kwargs = {
'Limit': limit,
}
if exclusive_start_key:
scan_kwargs['ExclusiveStartKey'] = decode_last_key(exclusive_start_key)
response = table.scan(**scan_kwargs)
scan_rows = response.get('Items', [])
last_evaluated_key = encode_last_key(response.get('LastEvaluatedKey'))
results = []
for row in scan_rows:
logger.info(f"row: {row}")
results.append(Workflow(**row).__dict__)
results = sort_workflows(results)
data = {
'workflows': results,
'last_evaluated_key': last_evaluated_key
}
return ok(data=data, decimal=True)
except Exception as e:
return response_error(e)
def sort_workflows(data):
if len(data) == 0:
return data
return sorted(data, key=lambda x: x['create_time'], reverse=True)