Mercado Bitcoin BCH/BRL market missing

[Felipe-Mangueira]

Hey,

I noticed the BCH/BTC market is missing in the Mercado Bitcoin exchange. Could you implement this routine to make trading in this market possible?
Also, I cannot make any request with the private API, cause the following error is always raising. Could you fix this issue as well?

Traceback (most recent call last):
File "C:/Users/me/example.py", line 92, in
x = mercado.create_order("BTC/BRL", 'limit', 'buy', 0.01, 10000)
File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16337, in create_order
response = getattr(self, method)(self.extend(order, params))
File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16389, in request
response = self.fetch2(path, api, method, params, headers, body)
File "C:\Program Files\Python36\lib\site-packages\ccxt\exchange.py", line 241, in fetch2
request = self.sign(path, api, method, params, headers, body)
File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16384, in sign
'TAPI-MAC': self.hmac(self.encode(auth), self.secret, hashlib.sha512),
File "C:\Program Files\Python36\lib\site-packages\ccxt\exchange.py", line 604, in hmac
h = hmac.new(secret, request, algorithm)
File "C:\Program Files\Python36\lib\hmac.py", line 144, in new
return HMAC(key, msg, digestmod)
File "C:\Program Files\Python36\lib\hmac.py", line 42, in init
raise TypeError("key: expected bytes or bytearray, but got %r" % type(key).name)
TypeError: key: expected bytes or bytearray, but got 'str'

[kroitor]

Hi, @Felipe-Mangueira ! Sure! Looks like they upgraded their public API at last, and now we can rewrite it a little. Will be there in very short time.

[Felipe-Mangueira]

Ok, @kroitor. If you can put this task on your priority list, I will be very appreciatted, because I already trade in this exchanger. Does this upgrade takes a long time to be fulfilled?

[kroitor]

@Felipe-Mangueira This issue has been solved in v.1.9.260. Don't forget to upgrade it. We will be happy if you report back if it works for you as expected or not. Cheers!

[Felipe-Mangueira]

Thank you so much @kroitor. Sure, I'll report as soon as possible.

[Felipe-Mangueira]

Hey @kroitor ,
Sorry for disturbing you again.
The functions of the class I usually use are fully functional, except the "fetch_balance ()" function, which is not returning the balance dictionary. Could you fix this issue for me, please?
Thanks again.

[kroitor]

@Felipe-Mangueira , can you please paste your code + verbose output (without the keys) ?

[Felipe-Mangueira]

Sure, @kroitor . Sorry for did not share it before.
That's a section of the code, like example:

mercado = ccxt.mercado({'nonce': lambda: int(time.time() * 1000)})
mercado.uid = 'MY USERID'
mercado.apiKey = 'MY APIKEY'
mercado.secret = 'MY SECRET'
mercado.password = 'MY PASSWORD'

x = mercado.fetch_balance()

This code returns something like that:

Traceback (most recent call last):
  File "C:/Users/myuser/Mycode.py", line 102, in <module>
    x = mercado.fetch_balance()
  File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16437, in fetch_balance
    balances = response['balance']
KeyError: 'balance'

If it helps you, the "response = self.privatePostGetAccountInfo()" line within the "fetch_balance" function from mercado class can read my balance but doesn't return the dictionary.

[kroitor]

@Felipe-Mangueira sorry, but we need verbose output:

mercado = ccxt.mercado({'nonce': lambda: int(time.time() * 1000)})
mercado.verbose = True  # ←--------------- add this line before doing other calls

It will print much more output. Can you paste it here, plz? Remove your keys and passwords from there. Hope you understand...

P.S. Use triple backticks for pasting code and results:

```
your code or output
```

[Felipe-Mangueira]

Sorry again, @kroitor

It follows the response:

Connected to pydev debugger (build 172.3544.46)
https://www.mercadobitcoin.net/tapi/v3/ POST https://www.mercadobitcoin.net/tapi/v3/ 
Request: {'Content-Type': 'application/x-www-form-urlencoded', 'TAPI-ID': 'code', 'TAPI-MAC': 'code', 'User-Agent': 'ccxt/1.9.265 (+https://github.com/ccxt-dev/ccxt) Python/3.6.2', 'Accept-Encoding': 'gzip, deflate'} tapi_method=get_account_info&tapi_nonce=1509023304642
Traceback (most recent call last):
POST https://www.mercadobitcoin.net/tapi/v3/ 
Response: Content-Type: application/json
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.2.1\helpers\pydev\pydevd.py", line 1599, in <module>
Date: Thu, 26 Oct 2017 13:08:25 GMT
Server: Apache
    globals = debugger.run(setup['file'], None, None, is_module)
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.2.1\helpers\pydev\pydevd.py", line 1026, in run
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.2.1\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "C:/Users/myuser/mycode.py", line 104, in <module>
    x = mercado.fetch_balance()
  File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16437, in fetch_balance
    balances = response['balance']
KeyError: 'balance'
Vary: Cookie
X-Frame-Options: SAMEORIGIN
Set-Cookie: visid_incap_619276=murZgy/KRlmoQpbE3y3gYkne8VkAAAAAQUIPAAAAAACFToWzQqJE3Qh/q6aOg5Py; expires=Fri, 26 Oct 2018 09:47:13 GMT; path=/; Domain=.mercadobitcoin.net
Set-Cookie: nlbi_619276=KMVBKCRVHggSHV2j+vqauAAAAADVSBsDKFkhx5yT53vjjUus; path=/; Domain=.mercadobitcoin.net
Set-Cookie: incap_ses_468_619276=6bxiQOXp1gIBZF82KKx+Bkne8VkAAAAAIDss8cymozUpqN7cHuiSOg==; path=/; Domain=.mercadobitcoin.net
Set-Cookie: ___utmvmKEulzpm=fYfbLDdNIei; path=/; Max-Age=900
Set-Cookie: ___utmvaKEulzpm=cFq�qzIJ; path=/; Max-Age=900
Set-Cookie: ___utmvbKEulzpm=tZh
    XFKOTalO: gtk; path=/; Max-Age=900
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Iinfo: 9-2366563-2357898 PNNN RT(1509023304784 867) q(0 0 0 -1) r(3 3) U6
X-CDN: Incapsula
Content-Encoding: gzip
X-Cache: MISS from omne3.tejofran.br
Via: 1.1 omne3.tejofran.br (squid/3.5.10-20151001-r13933)
Connection: close

 {"response_data": {"balance": {"brl": {"available": "0", "total": "0", "amount_open_orders": 0}, "btc": {"available": "0", "total": "0", "amount_open_orders": 0}, "ltc": {"available": "0", "total": "0", "amount_open_orders": 0}, "bch": {"available": "0", "total": "0", "amount_open_orders": 0}}, "withdrawal_limits": {"brl": {"available": "20000.00", "total": "20000.00"}, "btc": {"available": "25.00000000", "total": "25.00000000"}, "ltc": {"available": "500.00000000", "total": "500.00000000"}, "bch": {"available": "25.00000000", "total": "25.00000000"}}}, "status_code": 100, "server_unix_timestamp": "1509023306"}

Process finished with exit code 1

[kroitor]

@Felipe-Mangueira ok, no problem, now i see the cause of it, I will fix it right away and will get back to you shortly.

[kroitor]

Ok, this should be completely fixed in 1.9.269. Can you please update and report if it works normally for you now? I tested it on my side and it should. Standing by for your reply. Thx!

[Felipe-Mangueira]

Thank you, @kroitor !! Waiting.

[kroitor]

@Felipe-Mangueira it's there, does it work for you? Let us know, plz.

[Felipe-Mangueira]

Hey, @kroitor . It's working properly right now. Thank you so much once again.
If i notice anything else strange, may I report you?

[kroitor]

@Felipe-Mangueira cool! Thx! Sure, feel free to ask your questions or open issues if you have any difficulties with it. Your feedback is very welcome! Thx again!

[Felipe-Mangueira]

Hi, @kroitor,

Sorry for disturbing you again with this issue, but I think there is still something wrong with the BCH/BTC market, because all my limit orders (with the function ccxt.mercado.create_order(args)) in this market are not being placed, regardless the amount or the price or the side. Could you please take a look in your code?

Thank you again for your patience.

This is the verbose output:

https://www.mercadobitcoin.net/tapi/v3/ POST https://www.mercadobitcoin.net/tapi/v3/ 
Request: {'Content-Type': 'application/x-www-form-urlencoded', 'TAPI-ID': 'code', 'TAPI-MAC': 'another_code', 'User-Agent': 'ccxt/1.9.269 (+https://github.com/ccxt-dev/ccxt) Python/3.6.2', 'Accept-Encoding': 'gzip, deflate'} tapi_method=place_sell_order&tapi_nonce=1509474019127&coin_pair=BCHBTC&quantity=2.00&limit_price=1499.95
Traceback (most recent call last):
POST https://www.mercadobitcoin.net/tapi/v3/ 
Response: Content-Type: application/json
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.2.1\helpers\pydev\pydevd.py", line 1599, in <module>
Date: Tue, 31 Oct 2017 18:20:19 GMT
    globals = debugger.run(setup['file'], None, None, is_module)
Server: Apache
Vary: Cookie
X-Frame-Options: SAMEORIGIN
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.2.1\helpers\pydev\pydevd.py", line 1026, in run
Set-Cookie: visid_incap_619276=uQFIzrYNTmG4TBUBgx3/weO++FkAAAAAQUIPAAAAAAArAuR2OeeTniKJJLKhUPBa; expires=Wed, 31 Oct 2018 02:15:44 GMT; path=/; Domain=.mercadobitcoin.net
    pydev_imports.execfile(file, globals, locals)  # execute the script
Set-Cookie: nlbi_619276=QvdZHMaS4zs9MSmB+vqauAAAAADHXDpifD+UxhxuXjXFB6U7; path=/; Domain=.mercadobitcoin.net
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.2.1\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
Set-Cookie: incap_ses_469_619276=zsbrTAef/2cZjZopIjmCBuO++FkAAAAAF4bDCa0Iwv7s06sRa/XZBQ==; path=/; Domain=.mercadobitcoin.net
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
Set-Cookie: ___utmvmyEulzpm=WylvtzloMHX; path=/; Max-Age=900
  File "C:/Users/myuser/mycode.py", line 101, in <module>
Set-Cookie: ___utmvayEulzpm=vEz�FVvC; path=/; Max-Age=900
    x = mercado.create_order("BCH/BRL", "limit", "sell", 2.00, 1499.95)
Set-Cookie: ___utmvbyEulzpm=PZU
  File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16479, in create_order
    XJiOLalB: Pto; path=/; Max-Age=900
    response = getattr(self, method)(self.extend(order, params))
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
  File "C:\Program Files\Python36\lib\site-packages\ccxt\exchanges.py", line 16533, in request
X-Iinfo: 8-43754272-43754376 NNNN CT(0 0 0) RT(1509474018864 351) q(0 0 0 -1) r(1 1) U6
X-CDN: Incapsula
Content-Encoding: gzip
X-Cache: MISS from omne3.tejofran.br
Via: 1.1 omne3.tejofran.br (squid/3.5.10-20151001-r13933)
Connection: close

 {"status_code": 205, "error_message": "Valor do *coin_pair* inv\u00e1lido.", "server_unix_timestamp": "1509474019"}
    raise ExchangeError(self.id + ' ' + self.json(response))
ccxt.errors.ExchangeError: mercado {"status_code":205,"error_message":"Valor do *coin_pair* inv\u00e1lido.","server_unix_timestamp":"1509474019"}

Process finished with exit code 1

[kroitor]

@Felipe-Mangueira sure, I'll take a look into it asap.

[Felipe-Mangueira]

Thank you! I'll be waiting for your reply.

[kroitor]

@Felipe-Mangueira this should be completely fixed in 1.9.292

[Felipe-Mangueira]

Thx again, @kroitor!

[kroitor]

@Felipe-Mangueira sorry, we're having an issue with publishing to PyPI, the new version will be there right away. Thx!

[Felipe-Mangueira]

Ok @kroitor. Sorry for late reply. I noticed you have uploaded the updated version of ccxt library and I already have installed the package. Thanks for your concern.