vision_batch_predict.rb

# Copyright 2019 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.


def vision_batch_predict actual_project_id:, actual_model_id:, actual_input_uri:, actual_output_uri:
  # Batch predict.
  # [START automl_vision_batch_predict]
  require "google/cloud/automl"

  project_id = "YOUR_PROJECT_ID"
  model_id = "YOUR_MODEL_ID"
  input_uri = "gs://YOUR_BUCKET_ID/path_to_your_input_file.csv"
  output_uri = "gs://YOUR_BUCKET_ID/path_to_save_results/"
  # [END automl_vision_batch_predict]
  # Set the real values for these variables from the method arguments.
  project_id = actual_project_id
  model_id = actual_model_id
  input_uri = actual_input_uri
  output_uri = actual_output_uri
  # [START automl_vision_batch_predict]

  prediction_client = Google::Cloud::AutoML.prediction_service

  # Get the full path of the model.
  model_full_id = prediction_client.model_path project: project_id,
                                               location: "us-central1",
                                               model: model_id
  input_config = {
    gcs_source: {
      input_uris: [input_uri]
    }
  }
  output_config = {
    gcs_destination: {
      output_uri_prefix: output_uri
    }
  }
  # [0.0-1.0] Only produce results higher than this value
  params = { "score_threshold" => "0.8" }

  operation = prediction_client.batch_predict name: model_full_id,
                                              input_config: input_config,
                                              output_config: output_config,
                                              params: params

  puts "Waiting for operation to complete..."

  # Wait until the long running operation is done
  operation.wait_until_done!

  puts "Batch Prediction results saved to Cloud Storage bucket."
  # [END automl_vision_batch_predict]
end