c# - 对 MailChimp API v3 的发布请求总是返回未经授权的

Question

我有以下调用来发布订阅 Mailchimp 列表，但它返回未经授权。我在 web.config 中存储了 API 密钥、列表和用户名，并对其进行了三次检查。

using (var wc = new System.Net.WebClient())
{
    string parameters = string.Concat("email_address=", email, "&status=", "subscribed"),
           url = "https://us12.api.mailchimp.com/3.0/lists/" + ConfigurationManager.AppSettings["MailChimp.ListId"] + "/members";

    wc.Headers.Add("Content-Type", "application/json");

    wc.Credentials = new NetworkCredential("", ConfigurationManager.AppSettings["MailChimp.ApiKey"]);

    string result = wc.UploadString(url, parameters);
}

Answer 1

您的代码有几个问题：

1. 您将电子邮件地址和状态作为查询字符串参数而不是 JSON 发送
2. 以这种方式使用 WebClient 发送凭据无法正常工作。

尝试以下操作：

var apiKey = "<api-key>";
var listId = "<your-list-id>";
var email = "<email-address-to-add>";

using (var wc = new System.Net.WebClient())
{
    // Data to be posted to add email address to list
    var data = new { email_address = email, status = "subscribed" };

    // Serialize to JSON using Json.Net
    var json = JsonConvert.SerializeObject(data);

    // Base URL to MailChimp API
    string apiUrl = "https://us12.api.mailchimp.com/3.0/";

    // Construct URL to API endpoint being used
    var url = string.Concat(apiUrl, "lists/", listId, "/members");

    // Set content type
    wc.Headers.Add("Content-Type", "application/json");

    // Generate authorization header
    string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(":" + apiKey));

    // Set authorization header
    wc.Headers[HttpRequestHeader.Authorization] = string.Format("Basic {0}", credentials);

    // Post and get JSON response
    string result = wc.UploadString(url, json);
}