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(Objective-C) Binary.com Tick StreamTick Stream Request -- Initiate a continuous stream of spot price updates for a given symbol.
#import <CkoWebSocket.h> #import <CkoRest.h> #import <NSString.h> #import <CkoJsonObject.h> // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkoWebSocket *ws = [[CkoWebSocket alloc] init]; // For brevity, this example does not check for errors when etablishing the WebSocket connection. // See Establish WebSocket Connection for more complete sample code for making the connection. CkoRest *rest = [[CkoRest alloc] init]; // Connect to ws.binaryws.com BOOL success = [rest Connect: @"ws.binaryws.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: NO]; [ws UseConnection: rest]; [ws AddClientHeaders]; // My app_id is 12332. You'll wnat to use your own... NSString *responseBody = [rest FullRequestNoBody: @"GET" uriPath: @"/websockets/v3?app_id=12332"]; success = [ws ValidateServerHandshake]; if (success != YES) { NSLog(@"%@",ws.LastErrorText); NSLog(@"%@",responseBody); NSLog(@"%@",rest.ResponseHeader); return; } // Build and send the following message: // { // "ticks": "R_50", // "subscribe": 1 // } CkoJsonObject *json = [[CkoJsonObject alloc] init]; [json AppendString: @"ticks" value: @"R_50"]; [json AppendInt: @"subscribe" value: [NSNumber numberWithInt: 1]]; // Send a full message in a single frame BOOL finalFrame = YES; success = [ws SendFrame: [json Emit] finalFrame: finalFrame]; if (success != YES) { NSLog(@"%@",ws.LastErrorText); return; } CkoJsonObject *jsonTickData = [[CkoJsonObject alloc] init]; jsonTickData.EmitCompact = NO; // Begin reading the tick stream response. // We'll just read the 1st 10 updates and then exit.. BOOL receivedFinalFrame = NO; int numTicksReceived = 0; while (numTicksReceived < 5) { success = [ws ReadFrame]; if (success != YES) { NSLog(@"%@",@"Failed to receive a frame"); NSLog(@"%@%d",@"ReadFrame fail reason = ",[ws.ReadFrameFailReason intValue]); NSLog(@"%@",ws.LastErrorText); return; } // The responses we desire are in Text frames, where the opcode = 1. if ([ws.FrameOpcodeInt intValue] == 1) { NSString *receivedJson = [ws GetFrameData]; [jsonTickData Load: receivedJson]; NSLog(@"%@",[jsonTickData Emit]); numTicksReceived = numTicksReceived + 1; } } // Close the websocket connection. success = [ws SendClose: YES statusCode: [NSNumber numberWithInt: 1000] reason: @"Closing this websocket."]; if (success != YES) { NSLog(@"%@",ws.LastErrorText); return; } // Read the Close response. success = [ws ReadFrame]; if (success != YES) { NSLog(@"%@%d",@"ReadFrame fail reason = ",[ws.ReadFrameFailReason intValue]); NSLog(@"%@",ws.LastErrorText); return; } NSLog(@"%@",@"Success."); // The output of the above code is shown here: // { // "echo_req": { // "subscribe": 1, // "ticks": "R_50" // }, // "msg_type": "tick", // "tick": { // "ask": "373.8725", // "bid": "373.8325", // "epoch": "1517437456", // "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9", // "quote": "373.8525", // "symbol": "R_50" // } // } // // { // "echo_req": { // "subscribe": 1, // "ticks": "R_50" // }, // "msg_type": "tick", // "tick": { // "ask": "373.7952", // "bid": "373.7552", // "epoch": "1517437458", // "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9", // "quote": "373.7752", // "symbol": "R_50" // } // } // // { // "echo_req": { // "subscribe": 1, // "ticks": "R_50" // }, // "msg_type": "tick", // "tick": { // "ask": "373.8638", // "bid": "373.8238", // "epoch": "1517437460", // "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9", // "quote": "373.8438", // "symbol": "R_50" // } // } // // { // "echo_req": { // "subscribe": 1, // "ticks": "R_50" // }, // "msg_type": "tick", // "tick": { // "ask": "373.7636", // "bid": "373.7236", // "epoch": "1517437462", // "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9", // "quote": "373.7436", // "symbol": "R_50" // } // } // // { // "echo_req": { // "subscribe": 1, // "ticks": "R_50" // }, // "msg_type": "tick", // "tick": { // "ask": "373.6870", // "bid": "373.6470", // "epoch": "1517437464", // "id": "2d3dedf1-45e2-66a5-d0d3-72bd7f0a6ea9", // "quote": "373.6670", // "symbol": "R_50" // } // } // // Success. |
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