#Can you decode into "generic" JSON values?

1 messages · Page 1 of 1 (latest)

crystal portal
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For example, receiving a message event that I want to fan out to other clients

How could I represent data here as being a json.Json value, rather than dynamic.Dynamic?

My current idea is to reimplement some JSON types to be more dynamic

CleanShot_2025-09-28_at_10.54.312x.png
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Can you decode into "generic" JSON values?

winter linden
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you can't, the json type only exists when serialising.
you can use json_value to turn your data into a generic AST for example

crystal portal
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Cool json_value looks neat

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Would there be a performance hit with this?

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oh I see, read the code

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cool that's perfect. was basically what I'd reimplement

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thank you 😊

winter linden
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you can technically abuse some implementation details of the platform you're targetting to skip some steps in the process

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note that this is not recommended though

crystal portal
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beam in this case

west spear
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Benchmark and profile first, if you learn that this is your bottleneck then you can optimise it