go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/resultdb/bqutil/client.go (about)

     1  // Copyright 2024 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // Package bqutil contains utility functions for BigQuery.
    16  package bqutil
    17  
    18  import (
    19  	"context"
    20  	"net/http"
    21  
    22  	"cloud.google.com/go/bigquery"
    23  	"google.golang.org/api/option"
    24  
    25  	"go.chromium.org/luci/common/errors"
    26  	"go.chromium.org/luci/server/auth"
    27  )
    28  
    29  // TODO (nqmtuan): Share the code with LUCI Analysis.
    30  // Client returns a new BigQuery client for use with the given GCP project,
    31  // that authenticates as ResultDB.
    32  func Client(ctx context.Context, gcpProject string) (*bigquery.Client, error) {
    33  	if gcpProject == "" {
    34  		return nil, errors.New("GCP Project must be specified")
    35  	}
    36  	tr, err := auth.GetRPCTransport(ctx, auth.AsSelf, auth.WithScopes(bigquery.Scope))
    37  	if err != nil {
    38  		return nil, err
    39  	}
    40  	return bigquery.NewClient(ctx, gcpProject, option.WithHTTPClient(&http.Client{
    41  		Transport: tr,
    42  	}))
    43  }