Python GraphQL 变量未定义

Posted 2023-03-08

【中文标题】Python GraphQL 变量未定义

【英文标题】：Python GraphQL variable not defined

【发布时间】：2018-11-21 16:49:35

【问题描述】：

我正在尝试使用 Flask + Flask-GraphQL + Graphene 服务器上的 apollo-boost 客户端执行包含一些变量的 GraphQL 请求。

let data = await client.query(
  query: gql`
    addItemToReceipt(receiptId: $receiptId, categoryId: $categoryId, value: $value, count: $count) 
      item 
        id
        category  id 
        value
        count
      
    
  `,
  variables: 
    receiptId: this.id,
    categoryId: categoryId,
    value: value,
    count: mult
  
)

但我收到“未定义变量 X”错误。

[GraphQL error]: Message: Variable "$receiptId" is not defined., Location: [object Object],[object Object], Path: undefined
[GraphQL error]: Message: Variable "$categoryId" is not defined., Location: [object Object],[object Object], Path: undefined
[GraphQL error]: Message: Variable "$value" is not defined., Location: [object Object],[object Object], Path: undefined
[GraphQL error]: Message: Variable "$count" is not defined., Location: [object Object],[object Object], Path: undefined
[Network error]: Error: Response not successful: Received status code 400

我在graphql_server/__init__.py 中添加了一些调试打印

# graphql_server/__init__.py:62
all_params = [get_graphql_params(entry, extra_data) for entry in data]
print(len(all_params))
print(all_params[0])
# ...

但是从我得到的输出来看，一切似乎都很好。 graphql_server.run_http_query() 确实接收所有变量。

GraphQLParams(query='\n  addItemToReceipt(receiptId: $receiptId, categoryId: $categoryId, value: $value, count: $count) \n    item \n      id\n      category \n        id\n        __typename\n      \n      value\n      count\n      __typename\n    \n    __typename\n  \n\n', variables='receiptId': '13', 'categoryId': 'gt', 'value': 0, 'count': 0, operation_name=None)

我做错了什么？

【参考方案1】：

我认为这可能是库本身的错误，如果您可以通过简单的方法将其报告为问题，那就太好了！

【讨论】：

我在这里发布了一个问题：github.com/graphql-python/graphql-server-core/issues/11