颤振发布请求

Question

我需要用header和json body编写Post请求，如下；

标头请求：

Content-Type:application/json

Authorization:Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzUxMiJ9

正文请求：

{
  "Data": {
    "Permissions": [
      "ReadAccountsDetail",
      "ReadProducts",
      "ReadStandingOrdersDetail",
      "ReadTransactionsCredits",
      "ReadTransactionsDebits",
      "ReadTransactionsDetail",
      "ReadPAN"
    ],
    "ExpirationDateTime": "2019-06-29T00:00:00+00:00",
    "TransactionFromDateTime": "2019-05-03T00:00:00+00:00",
    "TransactionToDateTime": "2019-12-03T00:00:00+00:00"
  },
  "Risk": {}
}

Answer 1

正如 Sergio Bernal 指出的，您应该在 pubspec.yaml 中包含 http：

dependencies:
    ...
    http: any

然后像下面这样导入它：

import 'package:http/http.dart' as http;

这将允许您使用以下方法：

http.post(dynamic url, {Map<String, String> headers, dynamic body, Encoding encoding})

这是你的例子：

String url = "http://example.co"
Map<String, String> headers = new Map<String, String>();
headers['Authorization'] = 'Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzUxMiJ9';
headers['Content-Type'] = 'application/json';

String body = jsonEncode(
    {
        "Data": {
            "Permissions": [
            "ReadAccountsDetail",
            "ReadProducts",
            "ReadStandingOrdersDetail",
            "ReadTransactionsCredits",
            "ReadTransactionsDebits",
            "ReadTransactionsDetail",
            "ReadPAN"
            ],
            "ExpirationDateTime": "2019-06-29T00:00:00+00:00",
            "TransactionFromDateTime": "2019-05-03T00:00:00+00:00",
            "TransactionToDateTime": "2019-12-03T00:00:00+00:00"
          },
       "Risk": {}
    }
);

await http.post(url, headers: headers, body: body).then((response){
    if(response.statusCode == 200) {
        //Success
    } else {
        //Handle failure
    }
});