Question

我很难理解 WrapQuery构造函数的参数。根据文档，签名为：

WrapQuery( path: Array<string>, wrapper: QueryWrapper, extractor: (result: any) => any, )

对于QueryWrapper，我进行了深入研究，并在代码中找到了此声明（文档中没有内容）：

export declare type QueryWrapper = (subtree: SelectionSetNode) => SelectionNode | SelectionSetNode;

我有一个突变，并且我想将此突变的输入变量转换为其他输入变量。到目前为止，我什至都没有管理他们在文档中得到的示例https://www.apollographql.com/docs/graphql-tools/schema-transforms：

new WrapQuery(
            ['priv_createConsumer'],
            (subtree) => { // subtree seems to contain one node only?? weird
                return {
                    kind: Kind.FIELD, // no idea which enum should I use here
                    name: {
                        kind: Kind.NAME, // no idea which enum should I use here
                        value: 'contact',
                    },
                    selectionSet: subtree,
                }
            },
            // how to process the data result at path
            (result) => { // result is mostly undefined or null (based on few things I tried to change
                return result && result.address
            }
        )

WrapQuery和其他转换

0 个答案: