apollo-client

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Hello I'm getting the following error when I add the field name as a key for caching in the typePolicies

  Offer: {
    keyFields: ['__typename', 'id', 'name'],
  },

This sometimes doesn't work as sometimes in the application we don't fetch the name field from the resolver Offer. So I get the following error:

Uncaught Invariant Violation: Missing field 'name' while computing key fields

Is there any way I could make the usage of the key optional, so we can bypass this this error? or maybe add a scope for the specific queries that don't use the name field?

You can provide your own keyFields function for more control:

new InMemoryCache({
  typePolicies: {
    Offer: {
      keyFields(object, context) {
        // In addition to returning a string ID immediately, a custom keyFields
        // function can return a dynamic array of field names, letting the usual
        // keyFields machinery handle extraction and stringification
        if (object.name) return ["id", "name"];
        return ["id"];
      }
    }
  }
})

Hey @hamzahamidi, I'd recommend trying the recommendation by @benjamn in https://github.com/apollographql/apollo-client/issues/10015#issuecomment-1248458358.

Since there has been no activity in this issue for a bit, I'm going to go ahead and close this issue. If you need additional help or the recommendation doesn't help, feel free to open the issue back up. Thanks!