hey, using the new incubating caching artifacts. i...

# apollo-kotlin

[agrosner]

hey, using the new incubating caching artifacts. i got the paginationArgs fieldPolicy and a typePolicy correct. one missing piece is that it seems to use the index from the response as my caching key. somepage.somepageCardsConnection.cards.3 as an example. The id I wish to use will reside in a nested field.

contentBlockInfo {
        id
    }

is my best bet to use programmatic caching ids?

[agrosner]

assume API is not changing at the moment to properly support caching ids

[agrosner]

object MonolithCacheKeyGenerator : CacheKeyGenerator {

    override fun cacheKeyForObject(obj: Map<String, Any?>, context: CacheKeyGeneratorContext): CacheKey? {
        if (obj["__typename"] === "SomepageCard") {
            @Suppress("UNCHECKED_CAST")
            return ((obj["contentBlockInfo"] as Map<String, Any?>?)?.get("id") as? String)?.let { CacheKey(it) }
                ?: TypePolicyCacheKeyGenerator.cacheKeyForObject(
                    obj,
                    context
                )
        }
        return TypePolicyCacheKeyGenerator.cacheKeyForObject(obj, context)
    }
}

[bod]

I think you should be able to use @typePolicy(keyFields: "id") on SomepageCard ?

[bod]

oh sorry, if it's nested, that won't work indeed

[bod]

I think yes, the programmatic way then.

[agrosner]

cool thanks! yeah that worked. thanks for the input!