We have a use case where we want to watch for changes to four GraphQL queries, and when any of them ...

# apollo-kotlin

[Neal Sanche]

We have a use case where we want to watch for changes to four GraphQL queries, and when any of them change, we want to create and return parameters to use to make another query. In most cases adding GraphQL watch() to these works great. But there are a few cases where the cache doesn't have anything in it yet, and so I guess since there's nothing to watch() the code for making the parameters never fires. I'm stubborn, and want this to work. Any ideas on how to ensure at least one query gets made when initiating a watch()?

[Neal Sanche]

I found this worked for me:

fun watch(): Flow<List<Account>> =
        apolloClient.query(GetAccountsQuery())
            .fetchPolicy(FetchPolicy.NetworkFirst)
            .refetchPolicy(FetchPolicy.CacheOnly)
            .watch()
            .map { response ->
                response.data!!.accounts.map { it.account }
            }

I had originally set the fetch policy to CacheOnly. And obviously this meant that if there wasn't anything in the cache, I'd be waiting until something arrived. With this change to NetworkFirst it goes to the network, fetches data into the cache, and my code is much happier.