6.8.4 Python APIs for Executing CREATE PROPERTY GRAPH Statements

You can create a property graph by executing the CREATE PROPERTY GRAPH statement through the Python API.

Creating a Property Graph Using the Python Client

• Launch the Python client:

  ./bin/opg4py --base_url https://localhost:7007 --user customer_360

• Define and execute the CREATE PROPERTY GRAPH statement as shown:

  statement = (
         "CREATE PROPERTY GRAPH "+ "<graph_name>" + " " +
         "VERTEX TABLES ( " +
         "bank_accounts " +
         "KEY(acct_id) " +
         "LABEL Account PROPERTIES (acct_id) " +
         ")" +
         "EDGE TABLES ( " +
         "bank_txns " +
         "KEY (txn_id) " +
         "SOURCE KEY (from_acct_id) REFERENCES bank_accounts " +
         "DESTINATION KEY (to_acct_id) REFERENCES bank_accounts " +
         "LABEL Transfer PROPERTIES(amount) " +
         ")")
  >>> session.prepare_pgql(statement).execute()

  where <graph_name> is the name of the graph.

  The graph gets created and you can verify through the get_graph method:

  >>> graph = session.get_graph("<graph_name>")
  >>> graph
  PgxGraph(name:<graph_variable>, v: 1000, e: 5001, directed: True, memory(Mb): 0)