mirror of https://github.com/hashicorp/consul
47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
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// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metadata_test
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import (
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"net/http"
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"cloud.google.com/go/compute/metadata"
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)
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// This example demonstrates how to use your own transport when using this package.
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func ExampleNewClient() {
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c := metadata.NewClient(&http.Client{Transport: userAgentTransport{
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userAgent: "my-user-agent",
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base: http.DefaultTransport,
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}})
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p, err := c.ProjectID()
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if err != nil {
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// TODO: Handle error.
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}
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_ = p // TODO: Use p.
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}
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// userAgentTransport sets the User-Agent header before calling base.
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type userAgentTransport struct {
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userAgent string
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base http.RoundTripper
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}
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// RoundTrip implements the http.RoundTripper interface.
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func (t userAgentTransport) RoundTrip(req *http.Request) (*http.Response, error) {
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req.Header.Set("User-Agent", t.userAgent)
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return t.base.RoundTrip(req)
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}
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