| 151 | # UPDATE properties of node in the graph |
| 152 | @router.put('/update/{node_id}') |
| 153 | async def update_node(node_id: int, attributes: dict): |
| 154 | # Check that property to update is not part of base list |
| 155 | for key in attributes: |
| 156 | if key in base_properties: |
| 157 | raise HTTPException( |
| 158 | status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, |
| 159 | detail="Operation not permitted, that property field cannot be updated.", |
| 160 | headers={"WWW-Authenticate": "Bearer"}) |
| 161 | |
| 162 | cypher = '''MATCH (node) WHERE ID(node) = $id |
| 163 | SET node += $attributes |
| 164 | RETURN node, ID(node) as id, LABELS(node) as labels''' |
| 165 | |
| 166 | with neo4j_driver.session() as session: |
| 167 | result = session.run(query=cypher, |
| 168 | parameters={'id': node_id, 'attributes': attributes}) |
| 169 | |
| 170 | node_data = result.data()[0] |
| 171 | |
| 172 | # Return Node response |
| 173 | return Node(node_id=node_data['id'], |
| 174 | labels=node_data['labels'], |
| 175 | properties=node_data['node']) |
| 176 | |
| 177 | |
| 178 | # DELETE node in the graph |