python - Python GraphQL 客户端 - 传递变量时出现意外的标点符号

Question

代码：

contract="0xdAC17F958D2ee523a2206206994597C13D831ec7"

query = """
($contract: Int!) {
 token(id:$contract){
   name
   symbol
   decimals
   derivedETH
   tradeVolumeUSD
   totalLiquidity
 }
}
"""

variables = {
    "contract": contract
}

data = client.execute(query=query, variables=variables)

错误：

{'errors': [{'locations': [{'column': 1, 'line': 2}], 'message': 'Unexpected `([Punctuator]`\nExpected `{`, `query`, `mutation`, `subscription` or `fragment`'}]}

我尝试了多种重新格式化的方法，但我无法让这个错误消失！帮助！

Answer 1

您的 GraphQL 查询必须以query:

query($someVar: String!) {
  someQuery(someArg: $someVar) {
     ...
  }
}