(Objective-C) Bitfinex v2 REST Public Trades

The trades endpoint allows the retrieval of past public trades and includes details such as price, size, and time. Optional parameters can be used to limit the number of results; you can specify a start and end timestamp, a limit, and a sorting method.

For more information, see https://docs.bitfinex.com/reference#rest-public-trades

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoHttp.h>
#import <CkoStringBuilder.h>
#import <CkoJsonArray.h>
#import <NSString.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoHttp *http = [[CkoHttp alloc] init];
BOOL success;

// Implements the following CURL command:

// curl https://api-pub.bitfinex.com/v2/trades/tBTCUSD/hist?limit=5

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
success = [http QuickGetSb: @"https://api-pub.bitfinex.com/v2/trades/tBTCUSD/hist?limit=5" sbContent: sbResponseBody];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoJsonArray *jarrResp = [[CkoJsonArray alloc] init];
[jarrResp LoadSb: sbResponseBody];
jarrResp.EmitCompact = NO;

NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jarrResp Emit]);

int respStatusCode = [http.LastStatus intValue];
NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
if (respStatusCode >= 400) {
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",http.LastHeader);
    NSLog(@"%@",@"Failed.");
    return;
}

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// on trading pairs (ex. tBTCUSD)
// [
//   [
//     ID,
//     MTS,
//     AMOUNT,
//     PRICE
//   ]
// ]

// [
//   [
//     472164271,
//     1594077725121,
//     -0.15101673,
//     9370
//   ],
//   [
//     472164270,
//     1594077723860,
//     -0.015,
//     9370
//   ],
//   [
//     472164269,
//     1594077720208,
//     -0.015,
//     9370
//   ],
//   [
//     472164267,
//     1594077718125,
//     -0.005,
//     9370
//   ],
//   [
//     472164251,
//     1594077697587,
//     -0.015,
//     9370
//   ]
// ]

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

CkoJsonArray *jarr_trade = 0;

int i = 0;
int count_i = [jarrResp.Size intValue];
while (i < count_i) {
    jarr_trade = [jarrResp ArrayAt: [NSNumber numberWithInt: i]];

    NSString *trade_id = [jarr_trade StringAt: [NSNumber numberWithInt: 0]];
    NSString *mts = [jarr_trade StringAt: [NSNumber numberWithInt: 1]];
    NSString *amount = [jarr_trade StringAt: [NSNumber numberWithInt: 2]];
    NSString *price = [jarr_trade StringAt: [NSNumber numberWithInt: 3]];

    i = i + 1;
}