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# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the 'License');
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an 'AS IS' BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# [START bigtable_functions_quickstart]
from google.cloud import bigtable
from google.cloud.bigtable.row_set import RowSet
client = bigtable.Client()
def bigtable_read_data(request):
instance = client.instance(request.headers.get("instance_id"))
table = instance.table(request.headers.get("table_id"))
prefix = 'phone#'
end_key = prefix[:-1] + chr(ord(prefix[-1]) + 1)
outputs = []
row_set = RowSet()
row_set.add_row_range_from_keys(prefix.encode("utf-8"),
end_key.encode("utf-8"))
rows = table.read_rows(row_set=row_set)
for row in rows:
output = 'Rowkey: {}, os_build: {}'.format(
row.row_key.decode('utf-8'),
row.cells["stats_summary"]["os_build".encode('utf-8')][0]
.value.decode('utf-8'))
outputs.append(output)
return '\n'.join(outputs)
# [END bigtable_functions_quickstart]