From 3bf9221135751a0490c48f99b7bf03fab9091904 Mon Sep 17 00:00:00 2001
From: "[Luis Rodrigues]" <sanctus.hck@gmail.com>
Date: Sun, 26 May 2024 00:50:07 +0100
Subject: [PATCH] adicionada funcao 'consultar_preco_token()'

---
 coingecko_api.py | 70 +++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 66 insertions(+), 4 deletions(-)

diff --git a/coingecko_api.py b/coingecko_api.py
index 87edfe3..968b78b 100644
--- a/coingecko_api.py
+++ b/coingecko_api.py
@@ -49,7 +49,7 @@ def consultar_preco(id_criptomoeda: str = '',
     if not isinstance(vs_currency, str):
         raise TypeError('\'vs_currency\' não é do tipo \'str\'')
     if vs_currency == '':
-        raise ValueError('')
+        raise ValueError('\'vs_currency\' tem de ser definido')
     if not isinstance(flag_include_market_cap, bool):
         flag_include_market_cap = False
     if not isinstance(flag_include_24hr_vol, bool):
@@ -92,9 +92,71 @@ def obter_lista_moedas_vs_currencies() -> tuple:
     resposta = requests.get(url_pedido, headers=headers)
     return resposta.status_code, resposta.json()
 # debug (decomentar linhas seguintes para testar funcao)
-codigo, dados = obter_lista_moedas_vs_currencies()
-for item in dados:
-    print(item)
+# codigo, dados = obter_lista_moedas_vs_currencies()
+# for item in dados:
+#     print(item)
+
+# https://docs.coingecko.com/v3.0.1/reference/simple-token-price
+# consultar preco de token usando o endereco de contrato do token
+def consultar_preco_token(
+        id_platform: str = '',
+        contract_address: str = '',
+        vs_currency: str = '',
+        flag_include_market_cap: bool = False,
+        flag_include_24hr_vol: bool = False,
+        flag_include_24hr_change: bool = False,
+        flag_include_last_updated_at: bool = False,
+        precisao: int | str = 'full'
+) -> tuple:
+    # validacao de parametros
+    if not isinstance(id_platform, str):
+        raise TypeError('\'id_platform\' tem de ser do tipo \'str\'')
+    if id_platform == '':
+        raise ValueError('\'id_platform\' tem de ser definido')
+    if not isinstance(contract_address, str):
+        raise TypeError('\'contract_address\' tem de ser do tipo \'str\'')
+    if contract_address == '':
+        raise ValueError('\'contract_address\' tem de ser definido')
+    if not isinstance(vs_currency, str):
+        raise TypeError('\'vs_currency\' tem de ser do tipo \'str\'')
+    if vs_currency == '':
+        raise ValueError('\'vs_currency\' tem de ser definido')
+    if not isinstance(flag_include_market_cap, bool):
+        flag_include_market_cap = False
+    if not isinstance(flag_include_24hr_vol, bool):
+        flag_include_24hr_vol = False
+    if not isinstance(flag_include_24hr_change, bool):
+        flag_include_24hr_change = False
+    if not isinstance(flag_include_last_updated_at, bool):
+        flag_include_last_updated_at = False
+    if (not isinstance(precisao, int)) and (not isinstance(precisao, str)):
+        raise TypeError('\'precisao\' tem de ser do tipo \'int\' ou \'str\'')
+    if isinstance(precisao, int):
+        if precisao < 0:
+            precisao = 0
+        if precisao > 18:
+            precisao = 18
+        precisao = str(precisao)
+    
+    endpoint_api = 'simple/token_price/' + id_platform + \
+        '?contract_addresses=' + contract_address + \
+        '&vs_currencies=' + vs_currency + \
+        '&include_market_cap=' + str(flag_include_market_cap).lower() + \
+        '&include_24hr_vol=' + str(flag_include_24hr_vol).lower() + \
+        '&include_24hr_change=' + str(flag_include_24hr_change).lower() + \
+        '&include_last_updated_at=' + str(flag_include_last_updated_at).lower() + \
+        '&precision=' + precisao
+    url_pedido = url_raiz_API + endpoint_api
+    resposta = requests.get(url_pedido, headers=headers)
+    return resposta.status_code, resposta.json()
+# debug (decomentar linhas seguintes para testar funcao)
+# id_plataforma = 'ethereum'
+# endereco_contracto = '0x2260fac5e5542a773aa44fbcfedf7c193bc2c599'
+# codigo, dados = consultar_preco_token(id_plataforma, endereco_contracto, 'eur')
+# print(f'codigo: {codigo}')
+# if codigo == 200:
+#     for item in dados:
+#         print(f'{dados[item]}')
 
 # fazer consulta de dados OHLC
 def consulta_ohcl(criptomoeda: str = '',