我已经用PHP编写了一段代码来查询Mendeley
中的搜索目录并检索特定期刊的数据。然而,问题是结果被限制到100。下面是用PHP编写的代码。如何在100个结果后添加mendeley
分页?
function auth(){
$client_id = '';
$client_secret = '';
$redirect_uri = '';
if(isset($_GET['code'])) {
if(!isset($_SESSION['access_token'])) {
# Authorize
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"https://api.mendeley.com/oauth/token");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded;"));
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array('client_id'=>$client_id, 'client_secret'=>$client_secret, 'code'=>$_GET['code'],'redirect_uri'=>$redirect_uri, 'grant_type'=>'authorization_code')));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
//curl_setopt ($ch, CURLOPT_CAINFO, getcwd()."\cacert.pem");
$server_output = curl_exec ($ch);
$errmsg = curl_error($ch) ;
if($errmsg) {
var_dump($errmsg);
}
curl_close ($ch);
$result = json_decode($server_output, true);
// var_dump($result);
$_SESSION['access_token'] = $result['access_token'];
}
# Call the main function
main();
}
function getResponse($path) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"https://api.mendeley.com/".$path);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Authorization: Bearer '.$_SESSION['access_token'],
'Accept: application/vnd.mendeley-document.1+json'
));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
//curl_setopt ($ch, CURLOPT_CAINFO, getcwd()."\cacert.pem");
$server_output = curl_exec ($ch);
$responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$header_len = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$header = substr($server_output, 0, $header_len);
$body = substr($server_output, $header_len);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$errmsg = curl_error($ch) ;
if($errmsg){
var_dump($errmsg);
}
curl_close ($ch);
return json_decode($server_output, true);
}
function main(){
$search_terms = 'Academy of Management Journal';
$min_year='2012';
$max_year='2016';
$result = getResponse('/search/catalog?source='.urlencode($search_terms).'&min_year='.$min_year.'&max_year='.$max_year.'&limit=2' . '&view=stats' );
var_dump($result);
if(isset($result)) {
if(isset($res['id'])) {
$data[] = getResponse('/catalog/'.$res['id']);
var_dump($data);
sleep(2);
}
}
发布于 2017-08-29 23:18:24
根据Mendeley Pagination documentation,可以从HTTP响应头的Link
字段中获得分页URL
我将使用curl作为原型工具来演示门德利分页的用法。
在您运行的示例中
curl -s -D - 'https://api.mendeley.com//search/catalog?source=Academy%20of%20Management%20Journal&min_year=2012&max_year=2016' -H "Authorization: Bearer $ACCESS_TOKEN" -H 'Accept: application/vnd.mendeley-document.1+json'
生成以下标头
HTTP/1.1 200 OK
Content-Type: application/vnd.mendeley-document.1+json
Date: Tue, 29 Aug 2017 15:13:34 GMT
Link: <https://api.mendeley.com/search/catalog?marker=00000000-0000-000a-0000-000000000000&limit=10&source=Academy%20of%20Management%20Journal&min_year=2012&reverse=false&max_year=2016&order=asc>; rel="next"
Mendeley-Count: 4185202
Vary: Accept-Encoding
Vary: Accept-Encoding
X-Mendeley-Trace-Id: Anv9p0YeJtY
Content-Length: 17779
Connection: keep-alive
因此,可以使用URL解析下一页
https://api.mendeley.com/search/catalog?marker=00000000-0000-000a-0000-000000000000&limit=10&source=Academy%20of%20Management%20Journal&min_year=2012&reverse=false&max_year=2016&order=asc
https://stackoverflow.com/questions/45840881
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