trustgraph/trustgraph-cli/trustgraph/cli/start_flow.py
cybermaggedon 8354ea1276
Update flow parameter tech spec for advanced params (#537)
* Add advanced mode to tech spec,  fix enum description in tech spec

* Updated tech-spec for controlled-by relationship between parameters

* Update tg-show-flows CLI

* Update tg-show-flows, tg-show-flow-classes, tg-start-flow CLI

* Add tg-show-parameter-types
2025-09-26 10:55:10 +01:00

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3.6 KiB
Python

"""
Starts a processing flow using a defined flow class.
Parameters can be provided in three ways:
1. As key=value pairs: --param model=gpt-4 --param temp=0.7
2. As JSON string: -p '{"model": "gpt-4", "temp": 0.7}'
3. As JSON file: --parameters-file params.json
"""
import argparse
import os
import tabulate
from trustgraph.api import Api
import json
default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
def start_flow(url, class_name, flow_id, description, parameters=None):
api = Api(url).flow()
api.start(
class_name = class_name,
id = flow_id,
description = description,
parameters = parameters,
)
def main():
parser = argparse.ArgumentParser(
prog='tg-start-flow',
description=__doc__,
)
parser.add_argument(
'-u', '--api-url',
default=default_url,
help=f'API URL (default: {default_url})',
)
parser.add_argument(
'-n', '--class-name',
required=True,
help=f'Flow class name',
)
parser.add_argument(
'-i', '--flow-id',
required=True,
help=f'Flow ID',
)
parser.add_argument(
'-d', '--description',
required=True,
help=f'Flow description',
)
parser.add_argument(
'-p', '--parameters',
help='Flow parameters as JSON string (e.g., \'{"model": "gpt-4", "temp": 0.7}\')',
)
parser.add_argument(
'--parameters-file',
help='Path to JSON file containing flow parameters',
)
parser.add_argument(
'--param',
action='append',
help='Flow parameter as key=value pair (can be used multiple times, e.g., --param model=gpt-4 --param temp=0.7)',
)
args = parser.parse_args()
try:
# Parse parameters from command line arguments
parameters = None
if args.parameters_file:
with open(args.parameters_file, 'r') as f:
parameters = json.load(f)
elif args.parameters:
parameters = json.loads(args.parameters)
elif args.param:
# Parse key=value pairs
parameters = {}
for param in args.param:
if '=' not in param:
raise ValueError(f"Invalid parameter format: {param}. Expected key=value")
key, value = param.split('=', 1)
key = key.strip()
value = value.strip()
# Try to parse value as JSON first (for numbers, booleans, etc.)
try:
# Handle common cases where we want to preserve the string
if value.lower() in ['true', 'false']:
parameters[key] = value.lower() == 'true'
elif value.replace('.', '').replace('-', '').isdigit():
# Check if it's a number
if '.' in value:
parameters[key] = float(value)
else:
parameters[key] = int(value)
else:
# Keep as string
parameters[key] = value
except ValueError:
# If JSON parsing fails, treat as string
parameters[key] = value
start_flow(
url = args.api_url,
class_name = args.class_name,
flow_id = args.flow_id,
description = args.description,
parameters = parameters,
)
except Exception as e:
print("Exception:", e, flush=True)
if __name__ == "__main__":
main()