google_cloud_bigtable_quickstart_read_row_and_print_cell.py

1import argparse
2
3from google.cloud import bigtable
4
5
6def main(project_id, instance_id, table_id):
7    # Create a Bigtable client
8    client = bigtable.Client(project=project_id, admin=True)
9
10    # Get a reference to the instance and table
11    instance = client.instance(instance_id)
12    table = instance.table(table_id)
13
14    # Define the row key to read
15    row_key = "r1"
16
17    # Read the row
18    row = table.read_row(row_key)
19
20    # Print the row contents
21    if row:
22        column_family_id = "cf1"
23        column_id = "c1".encode("utf-8")
24        cell = row.cells[column_family_id][column_id][0]
25        print(f"Row key: {row.row_key.decode('utf-8')}")
26        print(f"Value: {cell.value.decode('utf-8')}")
27    else:
28        print(f"Row with key '{row_key}' not found.")
29
30
31if __name__ == "__main__":
32    parser = argparse.ArgumentParser(
33        description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
34    )
35    parser.add_argument("project_id", help="Your Cloud Project ID.")
36    parser.add_argument("instance_id", help="ID of the Cloud Bigtable instance to connect to.")
37    parser.add_argument(
38        "--table", help="Table ID to read from.", default="quickstart-table"
39    )
40
41    args = parser.parse_args()
42    main(args.project_id, args.instance_id, args.table)