[英]Is is possible to skip part of a query with apollo-client
I'm trying to perform 3 unique searches inside one query. 我正在尝试在一个查询中执行3个唯一搜索。 The problem is that my search "filter" type is mandatory in the schema but in the front-end it's optional. 问题是我的搜索“过滤器”类型在模式中是必需的,但在前端它是可选的。 If a null value is provided inside my filter then I'll get a graphql error. 如果在我的过滤器中提供了空值,那么我将得到graphql错误。
I want to skip searching for mainSearchData, firstComparisonSearchData or secondComparisonSearchData depending on whether the search filters contain data. 我想跳过搜索mainSearchData,firstComparisonSearchData或secondComparisonSearchData,具体取决于搜索过滤器是否包含数据。
I know that I can use the skip
function to ignore the whole query but how can I achieve the same for part of the query? 我知道我可以使用skip
函数来忽略整个查询但是如何在查询的部分内部实现相同的功能呢? Or alternatively, how can I compose these as separate queries but perform just one request? 或者,我如何将这些作为单独的查询组成,但只执行一个请求?
const GROWTH_QUERY = gql`query aggregateQuery($mainFilter: filter!, $firstComparisonFilter: filter!, $secondComparisonFilter: filter! $interval: interval!) {
mainSearchData: groupBy(filter: $mainFilter, first: 20, after: 0) {
items: publicationDate(interval: $interval, minDocCount: 1, sort: DESC) {
date
count
}
}
firstComparisonSearchData: groupBy(filter: $firstComparisonFilter, first: 20, after: 0) {
items: publicationDate(interval: $interval, minDocCount: 1, sort: DESC) {
date
count
}
}
secondComparisonSearchData: groupBy(filter: $secondComparisonFilter, first: 20, after: 0) {
items: publicationDate(interval: $interval, minDocCount: 1, sort: DESC) {
date
count
}
}
}`;
You can use the skip
function on the fields themselves. 您可以在字段本身上使用skip
功能。
For example: 例如:
const GROWTH_QUERY = gql`query aggregateQuery($mainFilter: filter!, $firstComparisonFilter: filter!, $secondComparisonFilter: filter! $interval: interval!) @skip(if: ...) {
mainSearchData: groupBy(filter: $mainFilter, first: 20, after: 0) {
items: publicationDate(interval: $interval, minDocCount: 1, sort: DESC) {
date
count
}
}
firstComparisonSearchData: groupBy(filter: $firstComparisonFilter, first: 20, after: 0) @skip(if: ...) {
items: publicationDate(interval: $interval, minDocCount: 1, sort: DESC) {
date
count
}
}
secondComparisonSearchData: groupBy(filter: $secondComparisonFilter, first: 20, after: 0) @skip(if: ...) {
items: publicationDate(interval: $interval, minDocCount: 1, sort: DESC) {
date
count
}
}
}`;
Notice the @skip(if: ...)
statements after the alias calls on mainSearchData
, firstComparisonSearchData
, and secondComparisonSearchData
. 注意@skip(if: ...)
语句上的别名调用后mainSearchData
, firstComparisonSearchData
和secondComparisonSearchData
。
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