Get a model

Get a model resource for a given model ID.

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For detailed documentation that includes this code sample, see the following:

Code sample

Go

Before trying this sample, follow theGo setup instructions in theBigQuery quickstart using client libraries. For more information, see theBigQueryGo API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, seeSet up authentication for client libraries.

import("context""fmt""io""cloud.google.com/go/bigquery")// printModelInfo demonstrates fetching metadata about a BigQuery ML model and printing some of// it to an io.Writer.funcprintModelInfo(wio.Writer,projectID,datasetID,modelIDstring)error{// projectID := "my-project-id"// datasetID := "mydataset"// modelID := "mymodel"ctx:=context.Background()client,err:=bigquery.NewClient(ctx,projectID)iferr!=nil{returnfmt.Errorf("bigquery.NewClient: %w",err)}deferclient.Close()meta,err:=client.Dataset(datasetID).Model(modelID).Metadata(ctx)iferr!=nil{returnfmt.Errorf("couldn't retrieve metadata: %w",err)}fmt.Fprintf(w,"Got model '%q' with friendly name '%q'\n",modelID,meta.Name)returnnil}

Java

Before trying this sample, follow theJava setup instructions in theBigQuery quickstart using client libraries. For more information, see theBigQueryJava API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, seeSet up authentication for client libraries.

importcom.google.cloud.bigquery.BigQuery;importcom.google.cloud.bigquery.BigQueryException;importcom.google.cloud.bigquery.BigQueryOptions;importcom.google.cloud.bigquery.Model;importcom.google.cloud.bigquery.ModelId;publicclassGetModel{publicstaticvoidmain(String[]args){// TODO(developer): Replace these variables before running the sample.StringdatasetName="MY_DATASET_NAME";StringmodelName="MY_MODEL_ID";getModel(datasetName,modelName);}publicstaticvoidgetModel(StringdatasetName,StringmodelName){try{// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.BigQuerybigquery=BigQueryOptions.getDefaultInstance().getService();ModelIdmodelId=ModelId.of(datasetName,modelName);Modelmodel=bigquery.getModel(modelId);System.out.println("Model: "+model.getDescription());System.out.println("Successfully retrieved model");}catch(BigQueryExceptione){System.out.println("Cannot retrieve model \n"+e.toString());}}}

Node.js

Before trying this sample, follow theNode.js setup instructions in theBigQuery quickstart using client libraries. For more information, see theBigQueryNode.js API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, seeSet up authentication for client libraries.

// Import the Google Cloud client libraryconst{BigQuery}=require('@google-cloud/bigquery');constbigquery=newBigQuery();asyncfunctiongetModel(){// Retrieves model named "my_existing_model" in "my_dataset"./**   * TODO(developer): Uncomment the following lines before running the sample   */// const datasetId = "my_dataset";// const modelId = "my_existing_model";constdataset=bigquery.dataset(datasetId);const[model]=awaitdataset.model(modelId).get();console.log('Model:');console.log(model.metadata.modelReference);}

Python

Before trying this sample, follow thePython setup instructions in theBigQuery quickstart using client libraries. For more information, see theBigQueryPython API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, seeSet up authentication for client libraries.

fromgoogle.cloudimportbigquery# Construct a BigQuery client object.client=bigquery.Client()# TODO(developer): Set model_id to the ID of the model to fetch.# model_id = 'your-project.your_dataset.your_model'model=client.get_model(model_id)# Make an API request.full_model_id="{}.{}.{}".format(model.project,model.dataset_id,model.model_id)friendly_name=model.friendly_nameprint("Got model '{}' with friendly_name '{}'.".format(full_model_id,friendly_name))

What's next

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