在java中使用apache ' httpclient '对' graphql '端点进行' REST '调用<

Question

我正试图对graphql端点进行简单的rest调用，但从服务器获得400错误。我在这方面已经有一段时间了

有效载荷

query = "{n" +
"   lookup(dob: "01/01", preSsn : { ssn: "{actualvalue}"})n" +
"   {n" +
"       items {n" +
"           individualCrdNumbern" +
"           firstNamen" +
"           middleNamen" +
"           lastNamen" +
"           suffixNamen" +
"       }n" +
"   }n" +
"}";

错误信息:{"statusCode":400,"statusDescription":"Bad Request","message":"","messageDetails":[]}

代码:

HttpClient client = getHttpsClient();
HttpPost httpPost = new HttpPost(URL);
StringEntity input = new StringEntity(query, ContentType.APPLICATION_JSON);
httpPost.setEntity(input);
final String plainCred = "userName"+":"+"password";
final String base64Creds = Base64.getEncoder().encodeToString(plainCred.getBytes());

httpPost.addHeader("Authorization", "Basic " + base64Creds);
httpPost.addHeader("Content-Type", "application/json");
httpPost.addHeader("Accept", "application/json");
httpPost.addHeader("Cache-Control", "no-cache");
HttpResponse response = client.execute(httpPost);

Answer 1

查询需要封装在分配给query元素的对象中。该对象还可以包含用于值绑定的variables元素:

{
"query": "...",
"operationName": "...",
"variables": { "myVariable": "someValue", ... }
}

参见使用POST的HTTP上的GraphQL规范。

试

String query = 
"{" +
""query" : "query {"+ 
"lookup(dob: "01/01", preSsn : { ssn: "{actualvalue}"})" +
"{items{individualCrdNumber firstName middleName lastName suffixName}}" +
"}" +
"}";