WP4.4 からの WordPress の oEmbed ブログカード埋め込み処理でも一部使われていましたが、wp4.7 からWordPressで REST API が広く有効化されたらしく、試してみる。

まず、プラグインで導入する必要ない、デフォルトで有効になっています。

エンドポイント

試しに、サイトのURLにwp-json/を足して、v1のエンドポイントへアクセスしてみると、たくさんの文字が出力される。

http://xie.mki.biz/wordpress/wp-json/

ここで、Chromeの拡張機能のPostmanを導入して、データを見る

v1より大分長くなり、なんだろう。v2から、エンドポイント変わったね！

先人のブログを参照し、Postsだけ見るにと、出力だいぶ減り

http://xie.mki.biz/wordpress/wp-json/wp/v2/posts

Postmanからデータを見る

この画面はなぜかGetのした、Authorizationの表示が出って。認証すると、もっと機能が増える？

認証に関して

認証に関して、v1と変わらないみたい

このAPIにおいては、認証にはいくつかの選択肢があり、基本的に以下のように選びましょう。

• そのサイトで有効化されたテーマやプラグインから利用するのであれば クッキー認証
• デスクトップアプリ、ウェブアプリ、モバイルアプリなどのサイトの外からアクセスするクライアントから API を利用するのであれば OAuth 認証, アプリケーションパスワード または ベーシック認証

OAuth 認証は複雑なので、しかもv1.0 (OAuth 1.0a specification) の難しい方だ。まず開発段階ではベーシック認証が便利でしょう。

ベーシック認証とアプリケーションパスワードは、HTTP Basic Authentication (published as RFC2617) を利用しており、Basic Auth plugin または Application Passwords plugin のどちらかを有効化する必要があります。

ベーシック認証を使用するには、ユーザー名とパスワードをリクエストごとにAuthenticationヘッダーで送信するだけです。この値は認証のたびにBase64エンドコードでエンコードされるべきです。

1.首先需要在你的wordpress里所需要安装的插件

①  WP REST API

2.编辑完所有用户之后，需要去下面这个地址下载插件，帮助认证（授权）用户

https://github.com/WP-API/Basic-Auth

3.在这个网址里下载软件名Postman（导出用户的数据用）

https://chrome.google.com/webstore/category/apps

在GET开始的地方添加你的wordpress的网址加users（用户）

例如:我的网址http://tinydb.host/lxx0614/wp-json/users

点击Authorization（授权）在它下方 Type选择Basic Auth（基本认证）

然后输入用户名和密码

最后点击 send    哇哦~你成功了吗~用户数据就这样被你导出来了、你真棒！

提取单个用户的方法：

http://tinydb.host/lxx0614/wp-json/users/加要提取的ＩＤ号

例如http://tinydb.host/lxx0614/wp-json/users/4

To Preparation WordPress wp-api,  you have three setup steps:

1. JSON REST API
2. Authenticate
3. Permalink

JSON REST API

Grab the latest version of JSON REST API on WordPress plugin directory. Install and activate it.

Authenticate

There are three ways you can authenticate.

Using the cookies

This is one method not widely used when working with APIs. When a user navigates on the web, pages tend to store data on users side. The cookie method here is a bit different by using the nonces method.

OAuth

This plugin implements the version 1.0a of OAuth. This method is widely used. Google, Facebook, Twitter and Flickr use OAuth for third party authentication.

Basic Authentication

Using this method you have to send your username and password each time you make a request. Client tools for REST testing usually have this method implemented themselves. This method is mainly used when developing. Is rarely used on production. On production consider using OAuth.

the Basic Authentication plugin only on it’s GitHub repository.

git clone https://github.com/WP-API/Basic-Auth basicAuth

Permalink

Change the permalink configuration to any other that not default.

API endpoint

Posts

Get

Post

Delete

Media

Post

Users

Get

API endpoint

import http.client
 
def main():
    conn = http.client.HTTPConnection("wp-api.pw")
    
    conn.request("GET", "/wp-json/")
    res = conn.getresponse()
    print(res.status, res.reason)
    print(res.read())
    conn.close()
 
if __name__ == "__main__":
    main()

Posts

Get

Post

Delete

Media

Post

Users

Get

API endpoint

[chen@luna ~]$ curl -l http://wp-api.pw/wp-json/

Posts

Get

The Posts endpoint returns a Post Collection containing a subset of the site’s posts.

[chen@luna ~]$ curl -l http://wp-api.pw/wp-json/posts

Post

Create a Post Requires authentication

[chen@luna ~]$ cat data.json
{
    "title": "This is a post",
    "content_raw": "This is some content"
}
[chen@luna ~]$ curl --user test:password -X POST http://wp-api.pw/wp-json/posts --data @data.json

Delete

Delete a Post Requires authentication

[chen@luna ~]$ curl --user test:password -X DELETE http://wp-api.pw/wp-json/posts/229
{"message":"Deleted post"}

Media

Post

To create the raw data for an attachment. This is a binary object (blob), such as image data or a video.

[chen@luna ~]$ curl --user test:password -H 'Content-Type:image/jpeg' -H 'Content-Disposition: attachment; filename="test1551.jpg"' -X POST http://wp-api.pw/wp-json/media --data-binary @/home/chen/IMG_1551.jpg

Users

Get

This endpoint offers a permalink to get the current user, without needing to know the user’s ID.

get user self

[chen@luna ~]$ curl --user test:password http://wp-api.pw/wp-json/users/me

get user list

[chen@luna ~]$ curl --user test:password http://wp-api.pw/wp-json/users

API endpoint

Posts

Get

Post

Delete

Media

Post

Users

Get

API endpoint

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
 
 
public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://wp-api.pw/wp-json/");
 
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
 
            System.out.printf("Response: %d %sn", conn.getResponseCode(), conn.getResponseMessage());
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String input;
 
            while ((input = br.readLine()) != null) {
                System.out.println(input);
            }
            br.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Posts

Get

The Posts endpoint returns a Post Collection containing a subset of the site’s posts.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
 
 
public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://wp-api.pw/wp-json/posts");
 
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
 
            System.out.printf("Response: %d %sn", conn.getResponseCode(), conn.getResponseMessage());
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String input;
 
            while ((input = br.readLine()) != null) {
                System.out.println(input);
            }
            br.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Post

Create a Post Requires authentication

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
 
 
public class Main {
    public static void main(String[] args) {
        try {
            String content = '{"title": "This is a post","content_raw": "This is some content"}';
            URL url = new URL("http://wp-api.pw/wp-json/posts");
 
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Authorization", "Basic " + Base64.getEncoder().encodeToString("test:password".getBytes(StandardCharsets.UTF_8)));
            conn.setRequestProperty("Content-Length", String.valueOf(content.getBytes("UTF-8").length));
            conn.setDoOutput(true);
            DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
            wr.writeBytes(content);
            wr.flush();
            wr.close();
 
            System.out.printf("Response: %d %sn", conn.getResponseCode(), conn.getResponseMessage());
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String input;
 
            while ((input = br.readLine()) != null) {
                System.out.println(input);
            }
            br.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Delete

Delete a Post Requires authentication

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
 
 
public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://wp-api.pw/wp-json/posts/229");
 
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            conn.setRequestMethod("DELETE");
            conn.setRequestProperty("Authorization", "Basic " + Base64.getEncoder().encodeToString("test:password".getBytes(StandardCharsets.UTF_8)));
 
            System.out.printf("Response: %d %sn", conn.getResponseCode(), conn.getResponseMessage());
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String input;
 
            while ((input = br.readLine()) != null) {
                System.out.println(input);
            }
            br.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Media

Post

To create the raw data for an attachment. This is a binary object (blob), such as image data or a video.

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StringWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
 
 
public class Main {
    public static void main(String[] args) {
        try {
            char[] buffer = new char[1024];
            StringWriter writer = new StringWriter();
            FileReader fileReader = new FileReader("/home/chen/IMG_1551.jpg");
            for (int n = 0; -1 != (n = fileReader.read(buffer));) {
                writer.write(buffer, 0, n);
            }
            fileReader.close();
            String content = writer.toString();
            URL url = new URL("http://wp-api.pw/wp-json/media");
 
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "image/jpeg");
            conn.setRequestProperty("Authorization", "Basic " + Base64.getEncoder().encodeToString("test:password".getBytes(StandardCharsets.UTF_8)));
            conn.setRequestProperty("Content-Length", String.valueOf(content.getBytes("UTF-8").length));
            conn.setDoOutput(true);
            DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
            wr.writeBytes(content);
            wr.flush();
            wr.close();
 
            System.out.printf("Response: %d %sn", conn.getResponseCode(), conn.getResponseMessage());
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String input;
 
            while ((input = br.readLine()) != null) {
                System.out.println(input);
            }
            br.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Users

Get

This endpoint offers a permalink to get the current user, without needing to know the user’s ID.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
 
 
public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://wp-api.pw/wp-json/users/me");
 
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            conn.setRequestProperty("Authorization", "Basic " + Base64.getEncoder().encodeToString("test:password".getBytes(StandardCharsets.UTF_8)));
 
            System.out.printf("Response: %d %sn", conn.getResponseCode(), conn.getResponseMessage());
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String input;
 
            while ((input = br.readLine()) != null) {
                System.out.println(input);
            }
            br.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}