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TwitterAPIを利用するためのアセット"Let's Tweet in Unity!"で検索APIを使うための拡張
using UnityEngine;
using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Text.RegularExpressions;
namespace Twitter
{
public delegate void CommonCallback(bool success, string response);
public partial class API
{
public enum Method
{
GET,
POST
}
private const string ApiBaseURL = "https://api.twitter.com/1.1/{0}.json";
/// <summary>
/// クエリを指定してツイートを検索
/// </summary>
/// <param name="query">検索クエリ.</param>
/// <param name="consumerKey">コンシューマキー</param>
/// <param name="consumerSecret">コンシューマシークレット</param>
/// <param name="response">Twitter.API.GetAccessTokenで取得したアクセストークン</param>
/// <param name="callback">検索結果を受け取るコールバック</param>
/// <example>
///
/// /*使用例*/
///
/// Twitter.AccessTokenResponse m_AccessTokenResponse; // 事前にTwitter.API.GetAccessTokenでアクセストークンを取得しておく
///
/// void SerchByHashTag()
/// {
/// // ハッシュタグ "#Unity" で検索(終了するとOnSearchTweetsResponseが実行される)
/// StartCoroutine(Twitter.API.SearchTweets("#Unity", "CONSUMER_KEY", "CONSUMER_SECRET", m_AccessTokenResponse, OnSearchTweetsResponse));
/// }
///
/// void OnSearchTweetsResponse(bool success, string response)
/// {
/// // responseに検索結果のJSON文字列が入ってくるので解析して各ツイートのテキストを得る
/// }
///
/// </example>
public static IEnumerator SearchTweets(string query, string consumerKey, string consumerSecret, AccessTokenResponse response, CommonCallback callback)
{
var parameters = new Dictionary<string, string>();
parameters["q"] = query;
return CommonRequest("search/tweets", Method.GET, parameters, consumerKey, consumerSecret, response, callback);
}
private static IEnumerator CommonRequest(string api, Method method, Dictionary<string, string> parameters, string consumerKey, string consumerSecret, AccessTokenResponse response, CommonCallback callback)
{
string baseURL = string.Format(ApiBaseURL, api);
string url = baseURL;
byte[] data = null;
if (parameters == null)
{
parameters = new Dictionary<string, string>();
}
if (method == Method.GET)
{
url = BuildURL(url, parameters);
}
if (method == Method.POST)
{
WWWForm form = new WWWForm();
foreach (var pair in parameters)
{
form.AddField(pair.Key, pair.Value);
}
data = form.data;
}
var headers = new Hashtable();
headers["Authorization"] = GetHeaderWithAccessToken(method.ToString(), url, consumerKey, consumerSecret, response, parameters);
WWW web = new WWW(url, data, headers);
yield return web;
if (!string.IsNullOrEmpty(web.error))
{
Debug.Log(string.Format("{0} failed. {1}\n{2}", api, web.error, web.text));
callback(false, web.error);
}
else
{
string error = Regex.Match(web.text, @"<error>([^&]+)</error>").Groups[1].Value;
if (!string.IsNullOrEmpty(error))
{
Debug.Log(string.Format("{0} failed. {1}\n{2}", api, web.error, web.text));
callback(false, web.text);
}
else
{
callback(true, web.text);
}
}
}
private static string BuildURL(string baseURL, Dictionary<string, string> parameters)
{
StringBuilder sb = new StringBuilder(baseURL);
if (parameters != null && parameters.Count > 0)
{
sb.Append("?");
foreach (var pair in parameters)
{
sb.Append(WWW.EscapeURL(pair.Key)).Append("=").Append(WWW.EscapeURL(pair.Value)).Append("&");
}
sb.Remove(sb.Length - 1, 1);
}
return sb.ToString();
}
private static void PrintJson(JsonData json)
{
if (json.IsArray)
{
for (int i = 0; i < json.Count; ++i)
{
PrintJson(json[i]);
}
}
else if (json.IsObject)
{
foreach (var key in json.Keys)
{
PrintJson(json[key]);
}
}
else
{
Debug.Log(json.ToString());
}
}
}
}
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