71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
# endpoints/nodes.py
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from flask import Blueprint, request, jsonify
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from app import get_driver, neo4j_logger
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bp = Blueprint('nodes', __name__)
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@bp.route('/nodes', methods=['GET', 'POST'])
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def nodes():
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if request.method == 'GET':
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return get_nodes()
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elif request.method == 'POST':
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return create_node()
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def get_nodes():
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node_type = request.args.get('type')
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if not node_type:
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return jsonify({"error": "Node type is required"}), 400
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# Get the filter parameter
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filter_property = request.args.get('filter')
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driver = get_driver()
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with driver.session() as session:
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query = f"MATCH (n:{node_type}) RETURN n"
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neo4j_logger.info(f"Executing query: {query}")
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nodes = session.run(query)
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# Convert the nodes to a list of dictionaries
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nodes_list = [
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{
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'id': record['n'].id,
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'labels': list(record['n'].labels),
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**{key: value for key, value in record['n'].items()}
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}
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for record in nodes
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]
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if filter_property:
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# Filter the results to only include the specified property
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filtered_nodes_list = [{filter_property: node.get(filter_property)} for node in nodes_list]
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return jsonify({"nodes": filtered_nodes_list})
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return jsonify({"nodes": nodes_list})
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def create_node():
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data = request.get_json()
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if not data:
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return jsonify({"error": "No data provided"}), 400
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node_type = data.pop('type', None)
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if not node_type:
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return jsonify({"error": "Node type is required in JSON data"}), 400
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properties = ', '.join([f'{key}: "${key}"' for key in data])
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query = f"CREATE (n:{node_type} {{{properties}}}) RETURN n"
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driver = get_driver()
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with driver.session() as session:
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neo4j_logger.info(f"Executing query: {query} with data: {data}")
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result = session.run(query, **data)
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# Convert the created node to a dictionary
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new_node = {
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'id': result.single()['n'].id,
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'labels': list(result.single()['n'].labels),
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**{key: value for key, value in result.single()['n'].items()}
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}
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return jsonify(new_node), 201
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