websocket python实现原理
Posted sunshinekimi
tags:
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""" pip install ws4py """
import json
from ws4py.client.threadedclient import WebSocketClient
class CG_Client(WebSocketClient):
def opened(self):
req = ‘{"event":"subscribe", "channel":"eth_usdt.deep"}‘
self.send(req)
def closed(self, code, reason=None):
print("Closed down:", code, reason)
def received_message(self, resp):
resp = json.loads(str(resp))
data = resp[‘data‘]
if type(data) is dict:
ask = data[‘asks‘][0]
print(‘Ask:‘, ask)
bid = data[‘bids‘][0]
print(‘Bid:‘, bid)
if __name__ == ‘__main__‘:
ws = None
try:
ws = CG_Client(‘wss://i.cg.net/wi/ws‘)
ws.connect()
ws.run_forever()
except KeyboardInterrupt:
ws.close()
第二种：
运行效果也可以，run_forever里面有许多参数，需要自己设置
import websocket
def on_message(ws, message): # 服务器有数据更新时，主动推送过来的数据
print(message)
def on_error(ws, error): # 程序报错时，就会触发on_error事件
print(error)
def on_close(ws):
print("Connection closed ……")
def on_open(ws): # 连接到服务器之后就会触发on_open事件，这里用于send数据
req = ‘{"event":"subscribe", "channel":"btc_usdt.deep"}‘
print(req)
ws.send(req)
if __name__ == "__main__":
websocket.enableTrace(True)
ws = websocket.WebSocketApp("wss://i.cg.net/wi/ws",
on_message=on_message,
on_error=on_error,
on_close=on_close)
ws.on_open = on_open
ws.run_forever(ping_timeout=30)
{"type":"btc_usdt.deep","ts":1556207364197,"data":{"asks":[5427.36,0.0368,5427.45,0.03,5427.56,0.046,5428,0.0046,5428.1,0.0364,5428.59,0.0018,5428.66,0.0013,5428.77,0.03,5428.96,0.011,5429.07,0.0009,5429.09,0.011,5429.35,0.0027,5429.36,0.011,5429.4399,0.0138,7065.5645,0.0028,7088.4157,0.0004,7102.5635,0.0006,7124.6346,0.0004],"bids":[5420.03,0.0212,5419.93,0.0013,5419.92,0.0276,5419.45,0.0026,5419.25,0.0184,5419.2,0.0044,5418.96,0.008,5418.81,0.0029,3637.2,0.2609,3637.1,0.8456,3636.7,0.277,3636.6,0.054,3636.5,0.513,3636.4,0.0933,3635.9,0.0247,3635.8,0.3,3635.3,0.022,3354.6,0.7547,3354.2,0.5,3353,0.018,3350.9,0.0126,3265.1,0.9432,3265,0.26,3248.9,0.125,3248.6,0.0147,3248.5,0.0248,3248.4,0.0106,3248.3,0.19,3248.2,0.0553,3248.1,0.1877,3247.9,0.4921,3247.8,0.757,3247.6,0.0119,3247.5,0.6,3247.4,0.453,3247.3,0.5924,3246.4,0.2148,3246,0.0485,3245.9,0.03,3245.8,0.0484,3245.1,0.2055,3245,0.1698,3244.3,0.16,3244.2,0.0523,3244,0.0071,3243.9,0.0239,3243.7,0.4803,3243.6,0.576,3243.5,0.576,3243.4,1.3858,3243,0.0369,3242.9,0.0049,3242.8,0.0816,3242.6,0.0739,3239.4,0.9298,3239.2,0.0134,3239.1,0.0234,3238.9,0.4802,3238.5,0.2239,3238.4,0.9849,3238.3,0.1379,3238.2,1,3238.1,0.0513,3238,0.0104,3237.8,0.7503,3237.7,0.9448,3237.6,0.1057,3237.5,0.0291,3237.4,0.15,3237.3,0.0543,3237.2,0.2068,3236.9,0.1115,3230.7,1.0153,3230.4,0.0264,3230.2,0.012,3230,0.0521,3229.9,0.6,3229.3,0.2004,3228.2,0.928,3228,0.0112,3227.9,0.5708,3227.6,0.5,3227.4,0.057,3227.2,0.0322,3227,0.2,3224.6,0.409,3224.5,0.2224,3224.4,0.14,3224.3,0.024,3224.2,0.0349,3224,0.0079,3223.8,0.0061,3223.6,0.8405,3223.4,0.927,3223.3,0.9606,3223.2,0.1011,3223.1,0.125,3223,0.0881,3222.9,0.9381,3222.8,0.6371]}}
{"type":"btc_usdt.deep","ts":1556207364207,"data":{"asks":[5427.36,0.0368,5427.45,0.03,5427.56,0.046,5428,0.0046,5428.1,0.0364,5428.59,0.0018,5428.66,0.0013,5428.77,0.03,5428.96,0.011,5429.07,0.0009,5429.35,0.0027,5429.36,0.011,5429.4399,0.0138,7065.5645,0.0028,7088.4157,0.0004,7102.5635,0.0006,7124.6346,0.0004],"bids":[5420.03,0.0212,5419.93,0.0013,5419.92,0.0276,5419.45,0.0026,5419.25,0.0184,5419.2,0.0044,5418.96,0.008,5418.81,0.0029,3637.2,0.2609,3637.1,0.8456,3636.7,0.277,3636.6,0.054,3636.5,0.513,3636.4,0.0933,3635.9,0.0247,3635.8,0.3,3635.3,0.022,3354.6,0.7547,3354.2,0.5,3353,0.018,3350.9,0.0126,3265.1,0.9432,3265,0.26,3248.9,0.125,3248.6,0.0147,3248.5,0.0248,3248.4,0.0106,3248.3,0.19,3248.2,0.0553,3248.1,0.1877,3247.9,0.4921,3247.8,0.757,3247.6,0.0119,3247.5,0.6,3247.4,0.453,3247.3,0.5924,3246.4,0.2148,3246,0.0485,3245.9,0.03,3245.8,0.0484,3245.1,0.2055,3245,0.1698,3244.3,0.16,3244.2,0.0523,3244,0.0071,3243.9,0.0239,3243.7,0.4803,3243.6,0.576,3243.5,0.576,3243.4,1.3858,3243,0.0369,3242.9,0.0049,3242.8,0.0816,3242.6,0.0739,3239.4,0.9298,3239.2,0.0134,3239.1,0.0234,3238.9,0.4802,3238.5,0.2239,3238.4,0.9849,3238.3,0.1379,3238.2,1,3238.1,0.0513,3238,0.0104,3237.8,0.7503,3237.7,0.9448,3237.6,0.1057,3237.5,0.0291,3237.4,0.15,3237.3,0.0543,3237.2,0.2068,3236.9,0.1115,3230.7,1.0153,3230.4,0.0264,3230.2,0.012,3230,0.0521,3229.9,0.6,3229.3,0.2004,3228.2,0.928,3228,0.0112,3227.9,0.5708,3227.6,0.5,3227.4,0.057,3227.2,0.0322,3227,0.2,3224.6,0.409,3224.5,0.2224,3224.4,0.14,3224.3,0.024,3224.2,0.0349,3224,0.0079,3223.8,0.0061,3223.6,0.8405,3223.4,0.927,3223.3,0.9606,3223.2,0.1011,3223.1,0.125,3223,0.0881,3222.9,0.9381,3222.8,0.6371]}}
{"type":"btc_usdt.deep","ts":1556207364220,"data":{"asks":[5427.36,0.0368,5427.45,0.03,5427.56,0.046,5428,0.0046,5428.1,0.0364,5428.59,0.0018,5428.66,0.0013,5428.77,0.03,5428.96,0.011,5429.07,0.0009,5429.35,0.0027,5429.36,0.011,7065.5645,0.0028,7088.4157,0.0004,7102.5635,0.0006,7124.6346,0.0004],"bids":[5420.03,0.0212,5419.93,0.0013,5419.92,0.0276,5419.45,0.0026,5419.25,0.0184,5419.2,0.0044,5418.96,0.008,5418.81,0.0029,3637.2,0.2609,3637.1,0.8456,3636.7,0.277,3636.6,0.054,3636.5,0.513,3636.4,0.0933,3635.9,0.0247,3635.8,0.3,3635.3,0.022,3354.6,0.7547,3354.2,0.5,3353,0.018,3350.9,0.0126,3265.1,0.9432,3265,0.26,3248.9,0.125,3248.6,0.0147,3248.5,0.0248,3248.4,0.0106,3248.3,0.19,3248.2,0.0553,3248.1,0.1877,3247.9,0.4921,3247.8,0.757,3247.6,0.0119,3247.5,0.6,3247.4,0.453,3247.3,0.5924,3246.4,0.2148,3246,0.0485,3245.9,0.03,3245.8,0.0484,3245.1,0.2055,3245,0.1698,3244.3,0.16,3244.2,0.0523,3244,0.0071,3243.9,0.0239,3243.7,0.4803,3243.6,0.576,3243.5,0.576,3243.4,1.3858,3243,0.0369,3242.9,0.0049,3242.8,0.0816,3242.6,0.0739,3239.4,0.9298,3239.2,0.0134,3239.1,0.0234,3238.9,0.4802,3238.5,0.2239,3238.4,0.9849,3238.3,0.1379,3238.2,1,3238.1,0.0513,3238,0.0104,3237.8,0.7503,3237.7,0.9448,3237.6,0.1057,3237.5,0.0291,3237.4,0.15,3237.3,0.0543,3237.2,0.2068,3236.9,0.1115,3230.7,1.0153,3230.4,0.0264,3230.2,0.012,3230,0.0521,3229.9,0.6,3229.3,0.2004,3228.2,0.928,3228,0.0112,3227.9,0.5708,3227.6,0.5,3227.4,0.057,3227.2,0.0322,3227,0.2,3224.6,0.409,3224.5,0.2224,3224.4,0.14,3224.3,0.024,3224.2,0.0349,3224,0.0079,3223.8,0.0061,3223.6,0.8405,3223.4,0.927,3223.3,0.9606,3223.2,0.1011,3223.1,0.125,3223,0.0881,3222.9,0.9381,3222.8,0.6371]}}
{"type":"btc_usdt.deep","ts":1556207364231,"data":{"asks":[5427.45,0.03,5427.56,0.046,5428,0.0046,5428.1,0.0364,5428.59,0.0018,5428.66,0.0013,5428.77,0.03,5428.96,0.011,5429.07,0.0009,5429.35,0.0027,5429.36,0.011,7065.5645,0.0028,7088.4157,0.0004,7102.5635,0.0006,7124.6346,0.0004],"bids":[5420.03,0.0212,5419.93,0.0013,5419.92,0.0276,5419.45,0.0026,5419.25,0.0184,5419.2,0.0044,5418.96,0.008,5418.81,0.0029,3637.2,0.2609,3637.1,0.8456,3636.7,0.277,3636.6,0.054,3636.5,0.513,3636.4,0.0933,3635.9,0.0247,3635.8,0.3,3635.3,0.022,3354.6,0.7547,3354.2,0.5,3353,0.018,3350.9,0.0126,3265.1,0.9432,3265,0.26,3248.9,0.125,3248.6,0.0147,3248.5,0.0248,3248.4,0.0106,3248.3,0.19,3248.2,0.0553,3248.1,0.1877,3247.9,0.4921,3247.8,0.757,3247.6,0.0119,3247.5,0.6,3247.4,0.453,3247.3,0.5924,3246.4,0.2148,3246,0.0485,3245.9,0.03,3245.8,0.0484,3245.1,0.2055,3245,0.1698,3244.3,0.16,3244.2,0.0523,3244,0.0071,3243.9,0.0239,3243.7,0.4803,3243.6,0.576,3243.5,0.576,3243.4,1.3858,3243,0.0369,3242.9,0.0049,3242.8,0.0816,3242.6,0.0739,3239.4,0.9298,3239.2,0.0134,3239.1,0.0234,3238.9,0.4802,3238.5,0.2239,3238.4,0.9849,3238.3,0.1379,3238.2,1,3238.1,0.0513,3238,0.0104,3237.8,0.7503,3237.7,0.9448,3237.6,0.1057,3237.5,0.0291,3237.4,0.15,3237.3,0.0543,3237.2,0.2068,3236.9,0.1115,3230.7,1.0153,3230.4,0.0264,3230.2,0.012,3230,0.0521,3229.9,0.6,3229.3,0.2004,3228.2,0.928,3228,0.0112,3227.9,0.5708,3227.6,0.5,3227.4,0.057,3227.2,0.0322,3227,0.2,3224.6,0.409,3224.5,0.2224,3224.4,0.14,3224.3,0.024,3224.2,0.0349,3224,0.0079,3223.8,0.0061,3223.6,0.8405,3223.4,0.927,3223.3,0.9606,3223.2,0.1011,3223.1,0.125,3223,0.0881,3222.9,0.9381,3222.8,0.6371]}}
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