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// Copyright 2015 Gary Burd
//
// 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 main
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"log"
"net/url"
"github.com/gomodule/oauth1/oauth"
)
type client struct {
client oauth.Client
token oauth.Credentials
}
func (c *client) get(urlStr string, params url.Values, v interface{}) error {
resp, err := c.client.Get(nil, &c.token, urlStr, params)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return fmt.Errorf("yelp status %d", resp.StatusCode)
}
return json.NewDecoder(resp.Body).Decode(v)
}
var credPath = flag.String("config", "config.json", "Path to configuration file containing the application's credentials.")
func readCredentials(c *client) error {
b, err := ioutil.ReadFile(*credPath)
if err != nil {
return err
}
var creds struct {
ConsumerKey string
ConsumerSecret string
Token string
TokenSecret string
}
if err := json.Unmarshal(b, &creds); err != nil {
return err
}
c.client.Credentials.Token = creds.ConsumerKey
c.client.Credentials.Secret = creds.ConsumerSecret
c.token.Token = creds.Token
c.token.Secret = creds.TokenSecret
return nil
}
func main() {
var c client
if err := readCredentials(&c); err != nil {
log.Fatal(err)
}
var data struct {
Businesses []struct {
Name string
Location struct {
DisplayAddress []string `json:"display_address"`
}
}
}
form := url.Values{"term": {"food"}, "location": {"San Francisco"}}
if err := c.get("http://api.yelp.com/v2/search", form, &data); err != nil {
log.Fatal(err)
}
for _, b := range data.Businesses {
addr := ""
if len(b.Location.DisplayAddress) > 0 {
addr = b.Location.DisplayAddress[0]
}
log.Println(b.Name, addr)
}
}
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