使用邮递员访问firebase REST API

问题描述 投票:8回答:5

我正在尝试使用邮递员对firebase进行REST API调用。当我的安全规则允许包括未经授权的用户在内的所有用户时,我已设法从firebase读取。

但是当我使用这条规则时:

{"rules":{".read": "auth != null", ".write": "auth != null"}}

我得到了'错误':来自邮递员的“许可被拒绝”。我为google的web oauth2.0客户端做了请求令牌,并获得了authorization_code令牌。

我试图在URL和标题中使用令牌,尝试使用GET和POST请求并仍然被拒绝。

请帮忙。提前致谢

rest firebase firebase-realtime-database postman
5个回答
18
投票

上面的答案对我不起作用。

对我有用的是什么

项目设置(左上角齿轮) - >服务帐户(最右边的选项卡) - >数据库秘密(左侧菜单) - >向下滚动,将鼠标悬停在bulltets上并单击Show

使用它作为auth键,即.../mycollection.json?auth=HERE


7
投票

对我来说它的工作方式如下:

https://your-database-url/users.json?auth=YOUR_AUTH_KEY

你在哪里可以得到这个AUTH_KEY?

你从Project Settings -> Database -> Secret Key得到这把钥匙


5
投票

尝试这样的事情

https://your-database-url/users.json?auth=YOUR_AUTH_KEY

响应是您的USERS节点的JSON


5
投票

我创建了一个Postman预请求脚本,用于帮助创建身份验证:承载JWT。使用Firebase Auth测试API时,应该节省大量的复制粘贴。 https://gist.github.com/moneal/af2d988a770c3957df11e3360af62635

发布时脚本的副本:

/**
 * This script expects the global variables 'refresh_token' and 'firebase_api_key' to be set. 'firebase_api_key' can be found
 * in the Firebase console under project settings then 'Web API Key'.
 * 'refresh_token' as to be gathered from watching the network requests to https://securetoken.googleapis.com/v1/token from 
 * your Firebase app, look for the formdata values
 * 
 * If all the data is found it makes a request to get a new token and sets a 'auth_jwt' environment variable and updates the 
 * global 'refresh_token'.
 * 
 * Requests that need authentication should have a header with a key of 'Authentication' and value of '{{auth_jwt}}'
 *
 * Currently the nested assertions silently fail, I don't know why.
 */
pm.expect(pm.globals.has('refresh_token')).to.be.true;
pm.expect(pm.globals.has('firebase_api_key')).to.be.true;

var sdk = require('postman-collection'),
  tokenRequest = new sdk.Request({
    url: 'https://securetoken.googleapis.com/v1/token',
    method: 'POST',
    body: {
      mode: 'urlencoded',
      urlencoded: [{
          type: 'text',
          key: 'key',
          value: pm.globals.get('firebase_api_key')
        },
        {
          type: 'text',
          key: 'grant_type',
          value: 'refresh_token'
        },
        {
          type: 'text',
          key: 'refresh_token',
          value: pm.globals.get('refresh_token')
        },
      ]
    }
  });

pm.sendRequest(tokenRequest, function(err, response) {

  pm.test('request for access token was ok', function() {
    pm.expect(response).to.be.ok();
  });

  const json = response.json();
  pm.expect(json).to.an('object');

  pm.test('response json has needed properties', function() {

    pm.expect(json).to.have.own.property('access_token');
    pm.expect(json).to.have.own.property('token_type');
    pm.expect(json).to.have.own.property('refresh_token');

    const accessToken = json.access_token;
    const tokenType = json.token_type;
    const refreshToken = json.refresh_token;

    pm.environment.set('auth_jwt', tokenType + ' ' + accessToken);
    pm.globals.set('refresh_token', refreshToken);

  });

});

2
投票

通过Postman获取数据非常简单:我就是这样做的

1您的数据库URL

https://YOUR_PROJECT_URL.firebaseio.com/YOUR_STRUCTURE/CLASS.json

2在标头中添加API密钥作为auth

auth = API_KEY的值

例:

1


0
投票

注意:添加此答案,因为此处列出的所有选项已弃用或不起作用(主要是由于缺少步骤)。

使其与Postman一起使用的最佳方法是使用Google OAuth2 access tokens。提供的链接全文描述,但我添加了快速步骤。

Step 1: Download Service-Accounts.json

answer_img_1

Step 2: Generate Access token in Java (provided link described support in other language for this)

  • 确保包含此依赖项:
implementation 'com.google.api-client:google-api-client:1.25.0'

要么

<dependency>
   <groupId>com.google.api-client</groupId>
   <artifactId>google-api-client</artifactId>
   <version>1.25.0</version>
 </dependency>
  • 运行此代码以生成令牌(从谷歌的javadocs复制)
   // Load the service account key JSON file
     FileInputStream serviceAccount = new FileInputStream("path/to/serviceAccountKey.json");

     GoogleCredential scoped = GoogleCredential
     .fromStream(serviceAccount)
     .createScoped(
         Arrays.asList(
           "https://www.googleapis.com/auth/firebase.database",
           "https://www.googleapis.com/auth/userinfo.email"
         )
     );
     // Use the Google credential to generate an access token
     scoped.refreshToken();
     String token = scoped.getAccessToken();
     System.out.println(token);

Step 3: Use the token in Postman

Post man Oauth 2 token

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