[英]Gdax api returning invalid signature on POST requests
Im trying to integrate with GDAX-API and i've successfully managed to place GET calls and receive an answer, however when i'm trying to make a POST call i get the following answer {"message":"invalid signature"} 我正在尝试与GDAX-API集成,并且已经成功地进行了GET调用并收到了应答,但是当我尝试进行POST调用时,我得到以下回答{“ message”:“ invalid signature”}
I've seen something here: https://www.reddit.com/r/GDAX/comments/7twdfv/gdax_api_invalid_signature_problem/ 我在这里看到了一些东西: https : //www.reddit.com/r/GDAX/comments/7twdfv/gdax_api_invalid_signature_problem/
but im not sure if this is the problem... 但我不确定这是否是问题...
My signature part is based on the java library mentioned by Gdax https://github.com/irufus/gdax-java 我的签名部分基于Gdax https://github.com/irufus/gdax-java提到的Java库
here is the interesting part of my code 这是我代码中有趣的部分
public String purchaseOrder(String jsonOrder) throws ClientProtocolException, IOException {
CloseableHttpClient client = HttpClientBuilder.create().build();
HttpPost request = new HttpPost(BASE_URL + "/orders");
String timestamp = Instant.now().getEpochSecond() + "";
request.addHeader("accept", "application/json");
request.addHeader("content-type", "application/json");
request.addHeader("User-Agent", "gdax-java-client");
request.addHeader(CB_ACCESS_KEY, API_KEY);
request.addHeader(CB_ACCESS_SIGN, generateSignedHeader("/orders", "POST", jsonOrder, String.valueOf(timestamp)));
request.addHeader(CB_ACCESS_TIMESTAMP, String.valueOf(timestamp));
request.addHeader(CB_ACCESS_PASSPHRASE, PASSPHRASE);
HttpResponse response = client.execute(request);
String jsonResponse = EntityUtils.toString(response.getEntity(), "UTF-8");
client.close();
return jsonResponse;
}
private String generateSignedHeader(String requestPath, String method, String body, String timestamp) {
try {
String prehash = timestamp + method.toUpperCase() + requestPath + body;
byte[] secretDecoded = Base64.getDecoder().decode(API_SECRET);
SecretKeySpec keyspec = new SecretKeySpec(secretDecoded, Mac.getInstance("HmacSHA256").getAlgorithm());
Mac sha256 = (Mac) Mac.getInstance("HmacSHA256").clone();
sha256.init(keyspec);
String response = Base64.getEncoder().encodeToString(sha256.doFinal(prehash.getBytes()));
System.out.println(response);
return response;
} catch (CloneNotSupportedException | InvalidKeyException e) {
System.out.println(e);
throw new RuntimeErrorException(new Error("Cannot set up authentication headers."));
} catch (NoSuchAlgorithmException e) {
System.out.println(e);
throw new RuntimeErrorException(new Error("Cannot set up authentication headers."));
}
}
and I've printed the json in the test request 我已经在测试请求中打印了json
{"side":"buy","type":"market","product_id":"BTC-USD","size":0.01000000000000000020816681711721685132943093776702880859375}
EDIT!!!!!!! 编辑!!!!!!!
I had an issue with the time stamp for some reason there is no need to drop the last 3 digits (ms) so im passing it as is but now im getting 由于某种原因,我遇到了时间戳问题,无需删除最后3个数字(ms),因此即时传递,但现在即时获取
{"message":"request timestamp expired"}
{“消息”:“请求时间戳过期”}
The timestamp has to be seconds since the Unix epoch (Jan 1, 1970). 自Unix时代(1970年1月1日)以来,时间戳必须为秒。
You may include the microseconds, but you must have a period (ie 123.456
). 您可以包括微秒,但必须有一个句点(即
123.456
)。
The message error you are getting is because the time is more than a few seconds off between your server and the GDAX server. 您收到的消息错误是因为服务器与GDAX服务器之间的时间相差几秒钟。 It is likely that of you do not include a period for the ms that it is off by about ×1000...
您可能没有为ms加上大约×1000的周期...
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