Bitstamp API：始终接收API0000（缺少密钥，签名和nonce参数。）

Question

研究这个SO问题（Authenticated Java Jersey REST call to Bitstamp），我发现OP有类似的问题。不幸的是，我无法在我自己的实现中调用调用：我尝试通过查询参数以及请求主体中格式化的json发送key，nonce和signature。我记录了标题和内容，因此在这两种情况下，这些是生成的日志：

// send in body
---> POST https://www.bitstamp.net/api/v2/balance/ HTTP/1.1
Accept: application/json;charset=UTF-8
Content-Type: application/json;charset=UTF-8
Content-Length: 140

{"key":"12345678901234567890123456789012","nonce":1234567890,"signature":"1234567890123456789012345678901234567890123456789012345678901234"}
---> END HTTP (140-byte body)
<--- HTTP/1.1 403 Authentication Failed (49ms)
{"status": "error", "reason": "Missing key, signature and nonce parameters.", "code": "API0000"}
<--- END HTTP (96-byte body)


// send as query-parameters
---> POST https://www.bitstamp.net/api/v2/balance/?key=12345678901234567890123456789012&signature=1234567890123456789012345678901234567890123456789012345678901234&nonce=1234567890 HTTP/1.1
Accept: application/json;charset=UTF-8
Content-Type: application/x-www-form-urlencoded
---> END HTTP (0-byte body)
<--- HTTP/1.1 403 Authentication Failed (45ms)
{"status": "error", "reason": "Missing key, signature and nonce parameters.", "code": "API0000"}
<--- END HTTP (96-byte body)

我做错了什么？ bitstamp在声明

时的含义是什么

  

要成功进行身份验证，您需要提供API密钥，签名和nonce参数。   （https://www.bitstamp.net/api/）

我使用Feign作为REST客户端。这两种方法看起来像这样：

@PostMapping(value = "api/v2/balance/", produces = MediaType.APPLICATION_JSON_UTF8_VALUE, consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
ResponseEntity<Map<String, Object>> getAccountBalanceQuery(@RequestParam("key") String key,
                                                      @RequestParam("signature") String signature,
                                                      @RequestParam("nonce") Integer nonce);

@PostMapping(value = "api/v2/balance/", produces = MediaType.APPLICATION_JSON_UTF8_VALUE, consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
ResponseEntity<Map<String, Object>> getAccountBalanceBody(@RequestBody BitstampAuth body);

谢谢！