Obtain exchange rate basic information port

OkHttpClient client = new OkHttpClient();
  ​
  MediaType mediaType = MediaType.parse("application/json");
  RequestBody body = RequestBody.create(mediaType, "{\"depositCoinCode\":\"BTC\",\"receiveCoinCode\":\"ETH\"}");
  Request request = new Request.Builder()
    .url("https://{host}/api/v1/getBaseInfo")
    .post(body)
    .addHeader("Content-Type", "application/json")
    .addHeader("cache-control", "no-cache")
    .build();
  ​
  Response response = client.newCall(request).execute();

var client = new RestClient("https://{host}/api/v1/getBaseInfo");
  var request = new RestRequest(Method.POST);
  request.AddHeader("cache-control", "no-cache");
  request.AddHeader("Content-Type", "application/json");
  request.AddParameter("undefined", "{\"depositCoinCode\":\"BTC\",\"receiveCoinCode\":\"ETH\"}", ParameterType.RequestBody);
  IRestResponse response = client.Execute(request);

#import <Foundation/Foundation.h>
  ​
  NSDictionary *headers = @{ @"Content-Type": @"application/json",
                             @"cache-control": @"no-cache" };
  NSDictionary *parameters = @{ @"depositCoinCode": @"BTC",
                                @"receiveCoinCode": @"ETH" };
  ​
  NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
  ​
  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{host}/api/v1/getBaseInfo"]
                                                         cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                     timeoutInterval:10.0];
  [request setHTTPMethod:@"POST"];
  [request setAllHTTPHeaderFields:headers];
  [request setHTTPBody:postData];
  ​
  NSURLSession *session = [NSURLSession sharedSession];
  NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                  if (error) {
                                                      NSLog(@"%@", error);
                                                  } else {
                                                      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                      NSLog(@"%@", httpResponse);
                                                  }
                                              }];
  [dataTask resume];
  ​

var http = require("https");
  ​
  var options = {
    "method": "POST",
    "hostname": [
      "transfer",
      "swft",
      "pro"
    ],
    "path": [
      "api",
      "v1",
      "getBaseInfo"
    ],
    "headers": {
      "Content-Type": "application/json",
      "cache-control": "no-cache"
    }
  };
  ​
  var req = http.request(options, function (res) {
    var chunks = [];
  ​
    res.on("data", function (chunk) {
      chunks.push(chunk);
    });
  ​
    res.on("end", function () {
      var body = Buffer.concat(chunks);
      console.log(body.toString());
    });
  });
  ​
  req.write(JSON.stringify({ depositCoinCode: 'BTC', receiveCoinCode: 'ETH' }));
  req.end();

  {
    "data": {
        "depositMax": "1692690",
        "depositMin": "169269",
        "instantRate": "0.000000538438",
        "minerFee": "0.00004368",
        "receiveCoinFee": "0.009328"
    },
    "resCode": "800",
    "resMsg": "成功"
}