我正在尝试向联合国粮食及农业组织（联合国粮农组织）API发出POST请求（通过JavaScript AJAX）以获取一些数据点。虽然我已成功完成对此API的GET请求而没有任何问题，但POST请求会一直失败。我已经用许多其他API完成了这种类型的请求，但是这个我无法弄清楚。
我的代码和与API相关的网址如下。
有人可以帮我成功完成对此FAO API的POST数据请求吗？修改我的代码或创建自己的示例代码都没关系。
API端点在这里： http://fenixapps2.fao.org/api/v1.0/en/data/
API的技术说明如下： http://fenixapps2.fao.org/api/v1.0/
＆＃39;示例页面＆＃39;这个API在这里： http://faostat.github.io/faostat-api/
＆＃39;展示页面＆＃39;这个API在这里： http://fenixapps.fao.org/repository/api/
我的代码 - 工作GET请求+非工作POST请求 - 如下所示 您可以将其剪切并粘贴到文本编辑器中，它将作为HTML文件使用。
<html>
<head>
<script type='text/javascript' src='https://code.jquery.com/jquery-2.1.3.min.js'></script>
<script type='text/javascript'>
function test() {
// (1) GET requests work fine.
// Based on example by FAOSTAT (http://faostat.github.io/faostat-api/)
$.ajax({
type: 'GET',
url: 'http://fenixapps2.fao.org/api/v1.0/en/classifications/QC',
success: function(response) {
console.log("metadata GET response:");
console.log(response);
}
});
// (2) POST requests do NOT work with my code.
// Originally based on example by FAOSTAT (http://faostat.github.io/faostat-api/)
// Modified per API description at: http://fenixapps2.fao.org/api/v1.0/
$.ajax({
url: "http://fenixapps2.fao.org/api/v1.0/en/data/",
traditional: true,
data: {
"datasource": "production", //test
"output_type": "objects", //arrays
"api_key": "n.a.",
"client_key": "n.a.",
"lang": "en",
//"domain_code":"QC", //domain_code (from example page - http://faostat.github.io/faostat-api/) replaced by domain_codes?
"domain_codes": ["'QC'"],
//"thousand_separator": ",", //not mentioned at http://fenixapps2.fao.org/api/v1.0/, only on example page.
//"decimal_separator": ".", //not mentioned at http://fenixapps2.fao.org/api/v1.0/, only on example page.
"decimal_places": "2",
"List1Codes": ["'33'"],
"List2Codes": ["'2510'"],
"List3Codes": ["'15'"],
"List4Codes": ["'2007'","'2008'","'2009'","'2010'","'2011'","'2012'","'2013'","'2014'"],
"List5Codes": null,
"List6Codes": null,
"List7Codes": null,
"null_values": true,
//"group_by"
//"order_by"
//"operator"
"page_size":"100",
"limit": "10",
"page_number":1
//"show_codes"
//"show_flags"
//"show_unit"
},
type: 'POST',
success: function(response) {
console.log("data POST response:");
console.log(response);
}
});
}
</script>
</head>
<body onload='test();'>
<div id='out'></div>
</body>
--- --- UPDATE
我尝试更改data中的$.ajax()部分，以便创建的网址与FAO＆＃39;示例＆＃39;中的cURL示例的格式完全匹配。页面（http://faostat.github.io/faostat-api/）。但是，这并未改变API的响应。我的更新代码包含在下面 - 我认为新的console.log(urlPlusData);行应该反映代码为POST生成的完整URL。
<html>
<head>
<script type='text/javascript' src='https://code.jquery.com/jquery-2.1.3.min.js'></script>
<script type='text/javascript'>
function test() {
// (1) GET requests work fine.
// Based on example by FAOSTAT (http://faostat.github.io/faostat-api/)
$.ajax({
type: 'GET',
url: 'http://fenixapps2.fao.org/api/v1.0/en/classifications/QC',
success: function(response) {
console.log("metadata GET response:");
console.log(response);
}
});
// (2) POST requests do NOT work with my code.
// Originally based on example by FAOSTAT (http://faostat.github.io/faostat-api/)
// Modified per API description at: http://fenixapps2.fao.org/api/v1.0/
$.ajax({
url: "http://fenixapps2.fao.org/api/v1.0/en/data",
traditional: true,
data: {
"datasource": "production", //test
"output_type": "objects", //arrays
"api_key": "n.a.",
"client_key": "n.a.",
"lang": "en",
//"domain_code":"QC", //domain_code (from example page) replaced by domain_codes?
"domain_codes": ["QC"],
//"thousand_separator": ",", //not mentioned at http://fenixapps2.fao.org/api/v1.0/, only on example page.
//"decimal_separator": ".", //not mentioned at http://fenixapps2.fao.org/api/v1.0/, only on example page.
"decimal_places": "2",
"List1Codes": ["33"],
"List2Codes": ["2510"],
"List3Codes": ["15"],
"List4Codes": ["2007","2008","2009","2010","2011","2012"],
"List5Codes": ["null"],
"List6Codes": ["null"],
"List7Codes": ["null"],
"null_values": true,
//"group_by"
//"order_by"
//"operator"
"page_size":"100",
"limit": "10",
"page_number":"1"
//"show_codes"
//"show_flags"
//"show_unit"
},
beforeSend: function (jqXHR, settings) {
urlPlusData = settings.url + "?" + settings.data;
},
type: 'POST',
success: function(response) {
console.log("data POST response:");
console.log(urlPlusData);
console.log(response);
}
});
}
</script>
</head>
<body onload='test();'>
<div id='out'></div>
</body>