Whats the recommended way to map generated types t...
# apollo-kotlina
André Thiele
03/21/2021, 2:52 PMWhats the recommended way to map generated types to domain objects?
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taso
03/21/2021, 3:00 PMWe used them as domain objects. That also works because you can define the query and result accordingly. After applying necessary business logic, we converted them to view layer objects.
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André Thiele
03/21/2021, 3:01 PMOk i've seen that before. how do you map them? Do you define extension functions? Unsure how to do this efficiently
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taso
03/21/2021, 3:03 PMExtension functions work fine.
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André Thiele
03/21/2021, 5:02 PMAre extensions really that great? I see that I would need additional functions for each query I make. Take this one for example:
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wasyl
03/21/2021, 6:28 PM@André Thiele What kind of efficiency are you looking for? How to write least code?
We’re keeping separate models for domain objects and yes, we have extensions for all of the types that appear in the queries. We also use fragments heavily, so if several queries reuse a fragment we only need one extension function for it
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André Thiele
03/21/2021, 6:32 PMI thought there must be a better way since apollo knows the return type of the queries and could technically utilize default values for the fields that are not requested. But maybe I am thinking a little bit to simple..
Otherwise I think I will try to define some fragments then. Is it possible to define them somewhere in the backend and retrieve them automatically via the schema?
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wasyl
03/21/2021, 6:36 PMapollo knows the return type of the queries and could technically utilize default values for the fields that are not requestedCan you clarify what you’re trying to achieve? The point of GraphQL is to only fetch what’s necessary. If a type in schema has 100 fields, and in the query you only specify 5 of them, then you only get those 5. There’s no backfilling of the 95 of the remaining fields, if you need them you should request them in the queries
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André Thiele
03/21/2021, 6:39 PMthats true, but the default values are defined in the schema and are not being fetched so it would be nice to have some sort of toggle
André Thiele
03/21/2021, 6:39 PMjust some thoughts im leaving here
André Thiele
03/21/2021, 6:40 PMi appreciate the work the team is doing
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wasyl
03/21/2021, 6:49 PMAnd why would you always want default values for those undefined fields and not actually fetch the proper values from the server?
wasyl
03/21/2021, 6:51 PMBtw can the default values be declared in the schema for the types and not only for parameters? I wasn’t aware of that
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André Thiele
03/21/2021, 6:52 PMahhhh thats right, yeah i think you can only define them for input parameters
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André Thiele
03/21/2021, 6:52 PMmy bad
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