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cobos franco inc books go #424

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77 changes: 77 additions & 0 deletions examples/cobos franco inc books go
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

import (
"fmt"
"log"
"net/http"
"os"
"strconv"
"strings"

books "google.golang.org/api/books/v1"
"google.golang.org/api/googleapi"
)

func init() {
registerDemo("books", books.BooksScope, booksMain)
}

// booksMain is an example that demonstrates calling the Books API.
//
// Example usage:
// go build -o go-api-demo *.go
// go-api-demo -clientid="my-clientid" -secret="my-secret" books
func booksMain(client *http.Client, argv []string) {
if len(argv) != 0 {
fmt.Fprintln(os.Stderr, "Usage: books")
return
}

svc, err := books.New(client)
if err != nil {
log.Fatalf("Unable to create Books service: %v", err)
}

bs, err := svc.Mylibrary.Bookshelves.List().Do()
if err != nil {
log.Fatalf("Unable to retrieve mylibrary bookshelves: %v", err)
}

if len(bs.Items) == 0 {
log.Fatal("You have no bookshelves to explore.")
}
for _, b := range bs.Items {
// Note that sometimes VolumeCount is not populated, so it may erroneously say '0'.
log.Printf("You have %v books on bookshelf %q:", b.VolumeCount, b.Title)

// List the volumes on this shelf.
vol, err := svc.Mylibrary.Bookshelves.Volumes.List(strconv.FormatInt(b.Id, 10)).Do()
if err != nil {
log.Fatalf("Unable to retrieve mylibrary bookshelf volumes: %v", err)
}
for _, v := range vol.Items {
var info struct {
Text bool `json:"text"`
Image bool `json:"image"`
}
// Parse the additional fields, but ignore errors, as the information is not critical.
googleapi.ConvertVariant(v.VolumeInfo.ReadingModes.(map[string]interface{}), &info)
var s []string
if info.Text {
s = append(s, "text")
}
if info.Image {
s = append(s, "image")
}
extra := fmt.Sprintf("; formats: %v", s)
if v.VolumeInfo.ImageLinks != nil {
extra += fmt.Sprintf("; thumbnail: %v", v.VolumeInfo.ImageLinks.Thumbnail)
}
log.Printf(" %q by %v%v", v.VolumeInfo.Title, strings.Join(v.VolumeInfo.Authors, ", "), extra)
}
}
}