BUY/SELL: 422 Client Error: for url: https://poloniex.com/tradingApi about poloniex HOT 15 CLOSED

Does it happen even without Decimal? Can you try to cast your decimal to something else like a string before passing it to the api?

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I am also encountering the 422 error. It began happening approximately 2 weeks ago; no code was changed on my end.

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I use the same API key with cointracking.info and everything seems to work fine there. I'm guessing that something recently changed on the Poloniex side that is causing problems with your client. I get the same error with version 0.0.13 and 0.0.15

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I tried using str() float() unicode() and i get always the 422.
If i try with integer .buy(currencyPair=defaultCurrencyPair,rate=1,amount=1) i obviously get a "not enough" message!

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I might have managed to reproduce this, but I have to check with you.

Could you please try this in your system and send me the output?

print(Decimal("0.001"))

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>>> from decimal import Decimal
>>> print(Decimal("0.001"))
0.001
>>> 

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Ok, I've debugged a bit more and discovered that Poloniex changed the way to return error messages:

Before

status code: 200
body: {"error": "........."}

Now

status code: 422
body: {"error": "........."}

So now the error message from requests was shadowing the real error message. In version 0.0.17 this is fixed. Can you try with version 0.0.17 and post the exception that you get?

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with 0.0.17

poland.buy(currencyPair=defaultCurrencyPair,rate="0,000001",amount="0,000001")

poloniex.exceptions.PoloniexCommandException: Invalid rate parameter.

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Perfect, as I expected.

Basically "0,000001" is not a valid input "0.000001" is

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It makes sense:

poland.buy(currencyPair=defaultCurrencyPair,rate="0.000001",amount="0.000001")

poloniex.exceptions.PoloniexCommandException: Total must be at least 1.

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Do you still have the problem with Decimal?

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It does not matter, I tried decimal just as a work around.

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