AJAX 请求 Flickr API returns 0 个结果,但适用于 curl/postman

AJAX request to Flickr API returns 0 results, but works with curl/postman

我正在构建一个单页网络应用程序,它向 Flickr 发出 AJAX 请求(使用 Flickr API)。当我使用 curl 或邮递员尝试请求时,它起作用了。当我使用 AJAX (jQuery) 从 Chrome 开始尝试时,我收到状态为 "OK" 的 200 响应,但结果始终为 0。如果我将完全相同的 URL(字面意思是复制并粘贴)到 postman/curl 中,我会得到结果。我一定是在做一些愚蠢的事情,但我想不通。

JavaScript代码:

var photoQueryURL = 'https://api.flickr.com/services/rest/?' + $.param({
    'method': 'flickr.photos.search',
    'api_key': flickrAPIKey,
    'text': title,
    'tags': title,
    'format': 'json',
    'nojsoncallback': '1'
});
// AJAX Query:
$.ajax(photoQueryURL)
    .done(function(data) {
        console.log('Sucessful query.');
        console.log(data);
    })
    .fail(function(err) {
        console.log('Failed query.');
        console.log(err);
    });

AJAX 查询:

Request URL:https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=<my-key>&text=Alex%27s%20Pizzeria&tags=Alex%27s%20Pizzeria&format=json&nojsoncallback=1
Request Method:GET
Status Code:200 
Remote Address:69.147.64.33:443
Referrer Policy:no-referrer-when-downgrade
Response Headers
access-control-allow-origin:*
age:2
cache-control:private
content-encoding:gzip
content-length:83
content-type:application/json
date:Sat, 28 Oct 2017 21:59:02 GMT
p3p:policyref="https://policies.yahoo.com/w3c/p3p.xml", CP="CAO DSP COR CUR ADM DEV TAI PSA PSD IVAi IVDi CONi TELo OTPi OUR DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA POL HEA PRE LOC GOV"
server:ATS
status:200
vary:Accept-Encoding
via:http/1.1 fts126.flickr.bf1.yahoo.com (ApacheTrafficServer [cMsSf ]), http/1.1 e22.ycpi.cha.yahoo.com (ApacheTrafficServer [cMsSf ])
x-content-type-options:nosniff
x-frame-options:SAMEORIGIN
x-served-by:www-bm006.flickr.bf1.yahoo.com
Request Headers
:authority:api.flickr.com
:method:GET
:path:/services/rest/?method=flickr.photos.search&api_key=<my-key>&text=Alex%27s%20Pizzeria&tags=Alex%27s%20Pizzeria&format=json&nojsoncallback=1
:scheme:https
accept:application/json, text/javascript, */*; q=0.01
accept-encoding:gzip, deflate, br
accept-language:en-US,en;q=0.9
cache-control:no-cache
origin:null
pragma:no-cache
user-agent:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.75 Safari/537.36
Query String Parameters
view source
view URL encoded
method:flickr.photos.search
api_key:<my-key>
text:Alex's Pizzeria
tags:Alex's Pizzeria
format:json
nojsoncallback:1

AJAX 响应:

{"photos":{"page":1,"pages":0,"perpage":100,"total":"0","photo":[]},"stat":"ok"}

用 curl 查询:

curl -k "https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=<my-key>&text=Alex%27s%20Pizza&tags=Alex%27s%20Pizza&format=json&nojsoncallback=1"

响应(通知5个结果):

{"photos": {"page": 1, "pages": 1, "perpage": 100, "total": "5",
"photo": [{"id":(...)}]},
"stat":"ok"}

建议?

--吉姆

您的代码是正确的。我已经创建了一个 Flickr 帐户来重现您的问题。

我添加了这段代码来打印结果:

var len = data.photos.photo.length, html = "";
if (len > 0) {
  var i;
  for (i = 0; i < len; i++) {
    html += "<li>";
    html += data.photos.photo[i].title;
    html += "</li>";
  }
  $("#list").html(html);
}

像这样:

(function() {
  $("#form").on("submit", function(e) {
    var flickrAPIKey = "39417c145483a7fb3ee91c5fe5bc93fe",
      title = $("#txtInput").val();
    var photoQueryURL = 'https://api.flickr.com/services/rest/?' + $.param({
      'method': 'flickr.photos.search',
      'api_key': flickrAPIKey,
      'text': title,
      'tags': title,
      'format': 'json',
      'nojsoncallback': '1'
    });
    // AJAX Query:
    $.ajax(photoQueryURL)
      .done(function(data) {
        console.log('Sucessful query.');
        var len = data.photos.photo.length, html = "";
        if (len > 0) {
          var i;
          for (i = 0; i < len; i++) {
            html += "<li>";
            html += data.photos.photo[i].title;
            html += "</li>";
          }
          $("#list").html(html);
        }
      })
      .fail(function(err) {
        console.log('Failed query.');
        console.log(err);
      });
    e.preventDefault();
  });
})();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<form id="form">
  <label for="txtInput">Input:</label>
  <input id="txtInput" type="text" />
  <button type="submit">Send</button>
  <hr />
  <ul id="list"></ul>
</form>

存在 Access-Control-Allow-Origin: * header。

$(function() {
  //store public feed in URL
  var URL = "https://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?";
  //create searchInfo object
  var searchInfo = {
    
    tags : $('#searchfield').val(),
    tagmode : "any",
    format : "json"
  };
  //when search button is clicked
  $('#searchbtn').click(function(){
    //update the search info object
    searchInfo.tags = $('#searchfield').val();
    //get JSON
    $.getJSON(URL,searchInfo,function(data){
        var photoHTML = '';
        //loop through each photo object
        $.each(data.items, function(i, photo) {
          photoHTML += '<span class ="image">';
          photoHTML += '<a href="' + photo.link 
                        + '">';
          photoHTML += '<img src ="' +         photo.media.m.replace('_m','_s')+'"></a></span>';
         
       });// end each
     
      //add the HTML to the page
     $('#images').append(photoHTML);
       
      
    }); // end get JSON
    
  }); //end click
  
}); //end ready
.image {
  padding: 10px;
  margin: 0 30px 30px 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
  <head>
    <title>Flickr Search for example kitten :)</title>
  </head>
  <body>
    <h1>Flickr Search</h1>
    <h4>Search for any image here!</h4>
    <input type="text" id="searchfield" />
    <button id ="searchbtn">Search</button>
    
    <div id="images">
    </div>
  </body>
</html>

/*

  Create an api to get an API KEY here:
  https://www.flickr.com/services/apps/create/

  Documentation for searching photos:
  https://www.flickr.com/services/api/flickr.photos.search.html

  */

  $('.fetch-button').click(function() {
    var $button = $(this);
    var photoUrl;

    $button.text('Loading...'); // Set text of button to loading
    $button.attr('disabled', 'disabled'); // Disable button
    $('.output').empty(); // Clear out results
    
    //what you are looking for
    var lookingfor = $('#wording').prop('value');
    var perpage = $('#per_page').prop('value');
    var page = $('#page').prop('value');
    var lowlang = $('#lang').prop('value');
    var lang = lowlang.toLowerCase() + '-' + $('#lang').prop('value');
    var api_key = 'e0246bb8460f3650cef44a21d89d4c60';
    var sort = $('#sort').prop('value');
    var content_type = $('#content_type').prop('value');
    
    
    
    console.log(lang)
    
    $.ajax({
      method: 'GET',
      url: 'https://api.flickr.com/services/rest?sort=' + sort + '&parse_tags=1&content_type=' + content_type + '&extras=can_comment,count_comments,count_faves,description,isfavorite,license,media,needs_interstitial,owner_name,path_alias,realname,rotation,url_c,url_l,url_m,url_n,url_q,url_s,url_sq,url_t,url_z&per_page=' + perpage + '&page=' + page + '&lang=' + lang + '&text=' + lookingfor + '&viewerNSID=&method=flickr.photos.search&csrf=&api_key=' + api_key + '&format=json&hermes=1&hermesClient=1&reqId=e626c8a6&nojsoncallback=1'
    }).done(function(data) {
      console.log(data);
      if (!data.photos) {
        return;
      }
      $.each(data.photos.photo, function(key, photo) {
        photoUrl = 'https://farm' +
          photo.farm +
          '.staticflickr.com/' +
          photo.server +
          '/' +
          photo.id +
          '_' +
          photo.secret +
          '_q.jpg';
        $('.output').append('<img src="' + photoUrl + '">');
      });

    }).always(function() {
      $button.text('Fetch Data'); // Reset button text
      $button.removeAttr('disabled'); // Enable button to be clicked again
    });
  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<div class="wrapper">
  <h1>Flickr API own by fetching all call rest api</h1>
  <input placeholder="search" id="wording" type="text" value="" name="search"/>
  <input placeholder="user_id" id="user_id" type="text" value="" name="user_id"/>
  <input placeholder="tags" id="tags" type="text" value="" name="tags"/>
  <input placeholder="tag_mode" id="tag_mode" type="text" value="" name="tag_mode"/>
  <input placeholder="text" id="text" type="text" value="" name="text"/>
  <input placeholder="min_upload_date" id="min_upload_date" type="text" value="" name="min_upload_date"/>
  <input placeholder="max_upload_date" id="max_upload_date" type="text" value="" name="max_upload_date"/>
  <input placeholder="min_taken_date" id="min_taken_date" type="text" value="" name="min_taken_date"/>
  <input placeholder="max_taken_date" id="max_taken_date" type="text" value="" name="max_taken_date"/>
  <input placeholder="license" id="license" type="text" value="" name="license"/>
  <input placeholder="sort" id="sort" type="text" value="relevance" name="sort"/>
  <input placeholder="privacy_filter" id="privacy_filter" type="text" value="" name="privacy_filter"/>
  <input placeholder="bbox" id="bbox" type="text" value="" name="bbox"/>
  <input placeholder="accuracy" id="accuracy" type="text" value="" name="accuracy"/>
  <input placeholder="safe_search" id="safe_search" type="text" value="" name="safe_search"/>
  <input placeholder="content_type" id="content_type" type="text" value="7" name="content_type"/>
  <input placeholder="machine_tags" id="machine_tags" type="text" value="" name="machine_tags"/>
  <input placeholder="machine_tag_mode" id="machine_tag_mode" type="text" value="" name="machine_tag_mode"/>
  <input placeholder="group_id" id="group_id" type="text" value="" name="group_id"/>
  <input placeholder="contacts" id="contacts" type="text" value="" name="contacts"/>
  <input placeholder="woe_id" id="woe_id" type="text" value="" name="woe_id"/>
  <input placeholder="place_id" id="place_id" type="text" value="" name="place_id"/>
  <input placeholder="media" id="media" type="text" value="" name="media"/>
  <input placeholder="has_geo" id="has_geo" type="text" value="" name="has_geo"/>
  <input placeholder="geo_context" id="geo_context" type="text" value="" name="geo_context"/>
  <input placeholder="lat" id="lat" type="text" value="" name="lat"/>
  <input placeholder="lon" id="lon" type="text" value="" name="lon"/>
  <input placeholder="radius" id="radius" type="text" value="" name="radius"/>
  <input placeholder="radius_units" id="radius_units" type="text" value="" name="radius_units"/>
  <input placeholder="is_commons" id="is_commons" type="text" value="" name="is_commons"/>
  <input placeholder="in_gallery" id="in_gallery" type="text" value="" name="in_gallery"/>
  <input placeholder="is_getty" id="is_getty" type="text" value="" name="is_getty"/>
  <input placeholder="extras" id="extras" type="text" value="" name="extras"/>
  <input placeholder="per_page" id="per_page" type="text" value="25" name="per_page"/>
  <input placeholder="page" id="page" type="text" value="1" name="page"/>
  <select id="lang" name="lang" data-placeholder="Choose a Language...">
  <option value="AF">Afrikanns</option>
  <option value="SQ">Albanian</option>
  <option value="AR">Arabic</option>
  <option value="HY">Armenian</option>
  <option value="EU">Basque</option>
  <option value="BN">Bengali</option>
  <option value="BG">Bulgarian</option>
  <option value="CA">Catalan</option>
  <option value="KM">Cambodian</option>
  <option value="ZH">Chinese (Mandarin)</option>
  <option value="HR">Croation</option>
  <option value="CS">Czech</option>
  <option value="DA">Danish</option>
  <option value="NL">Dutch</option>
  <option value="EN" selected>English</option>
  <option value="ET">Estonian</option>
  <option value="FJ">Fiji</option>
  <option value="FI">Finnish</option>
  <option value="FR">French</option>
  <option value="KA">Georgian</option>
  <option value="DE">German</option>
  <option value="EL">Greek</option>
  <option value="GU">Gujarati</option>
  <option value="HE">Hebrew</option>
  <option value="HI">Hindi</option>
  <option value="HU">Hungarian</option>
  <option value="IS">Icelandic</option>
  <option value="ID">Indonesian</option>
  <option value="GA">Irish</option>
  <option value="IT">Italian</option>
  <option value="JA">Japanese</option>
  <option value="JW">Javanese</option>
  <option value="KO">Korean</option>
  <option value="LA">Latin</option>
  <option value="LV">Latvian</option>
  <option value="LT">Lithuanian</option>
  <option value="MK">Macedonian</option>
  <option value="MS">Malay</option>
  <option value="ML">Malayalam</option>
  <option value="MT">Maltese</option>
  <option value="MI">Maori</option>
  <option value="MR">Marathi</option>
  <option value="MN">Mongolian</option>
  <option value="NE">Nepali</option>
  <option value="NO">Norwegian</option>
  <option value="FA">Persian</option>
  <option value="PL">Polish</option>
  <option value="PT">Portuguese</option>
  <option value="PA">Punjabi</option>
  <option value="QU">Quechua</option>
  <option value="RO">Romanian</option>
  <option value="RU">Russian</option>
  <option value="SM">Samoan</option>
  <option value="SR">Serbian</option>
  <option value="SK">Slovak</option>
  <option value="SL">Slovenian</option>
  <option value="ES">Spanish</option>
  <option value="SW">Swahili</option>
  <option value="SV">Swedish </option>
  <option value="TA">Tamil</option>
  <option value="TT">Tatar</option>
  <option value="TE">Telugu</option>
  <option value="TH">Thai</option>
  <option value="BO">Tibetan</option>
  <option value="TO">Tonga</option>
  <option value="TR">Turkish</option>
  <option value="UK">Ukranian</option>
  <option value="UR">Urdu</option>
  <option value="UZ">Uzbek</option>
  <option value="VI">Vietnamese</option>
  <option value="CY">Welsh</option>
  <option value="XH">Xhosa</option>
</select>
 
  
  <button class="fetch-button">Fetch Data</button>
  <div class="output">
  </div>
</div>