android - Duplicate object types in Apollo GraphQL for Android

Question

On my project GraphQL schema the object AllowedPeriod (it's just two fields startsAt/endsAt) can arrive inside different objects of the graph.

When generating queries, apollo is creating a new type for every <parent_object>.AllowedPeriod

For example, in the GetDevicesQuery, the AllowedPeriod can be inside devices, actions or group, hence generating the following classes.

• GetDevicesQuery.AllowedPeriod
• GetDevicesQuery.AllowedPeriod1
• GetDevicesQuery.AllowedPeriod2

Is there a way to tell apollo that those are the same types and that it should not generate types for every one of them?

Answer 1

我认为您可以使用 graphQL 片段来解决您的问题。Apollo 应该为您的每个查询生成相同的片段类。

例如：

fragment AllowedPeriodFragment on AllowedPeriod {
    startsAt
    endsAt
}

query GetDevicesQuery() {
    devices {
        allowedPeriod { 
            ...AllowedPeriodFragment 
        }
    }

    actions {
        allowedPeriod { 
            ...AllowedPeriodFragment 
        }
    }
}

生成的片段可以通过fragments() 方法访问。

它应该看起来像： device.fragments().allowedPeriodFragment()或action.fragments().allowedPeriodFragment()