| // Copyright 2018 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. |
| |
| package cloud_test |
| |
| import ( |
| "context" |
| "time" |
| |
| "cloud.google.com/go/bigquery" |
| ) |
| |
| // To set a timeout for an RPC, use context.WithTimeout. |
| func Example_timeout() { |
| ctx := context.Background() |
| // Do not set a timeout on the context passed to NewClient: dialing happens |
| // asynchronously, and the context is used to refresh credentials in the |
| // background. |
| client, err := bigquery.NewClient(ctx, "project-id") |
| if err != nil { |
| // TODO: handle error. |
| } |
| // Time out if it takes more than 10 seconds to create a dataset. |
| tctx, cancel := context.WithTimeout(ctx, 10*time.Second) |
| defer cancel() // Always call cancel. |
| |
| if err := client.Dataset("new-dataset").Create(tctx, nil); err != nil { |
| // TODO: handle error. |
| } |
| } |
| |
| // To arrange for an RPC to be canceled, use context.WithCancel. |
| func Example_cancellation() { |
| ctx := context.Background() |
| // Do not cancel the context passed to NewClient: dialing happens asynchronously, |
| // and the context is used to refresh credentials in the background. |
| client, err := bigquery.NewClient(ctx, "project-id") |
| if err != nil { |
| // TODO: handle error. |
| } |
| cctx, cancel := context.WithCancel(ctx) |
| defer cancel() // Always call cancel. |
| |
| // TODO: Make the cancel function available to whatever might want to cancel the |
| // call--perhaps a GUI button. |
| if err := client.Dataset("new-dataset").Create(cctx, nil); err != nil { |
| // TODO: handle error. |
| } |
| } |