Nuxt•4w ago

Deserialize object after its fetched

Is it possible to have a convenient function that takes a SerializeObject<T> and returns its content casted as a T?

2 Replies

Hi @valerio. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Yes, it is possible to have a convenient function to deserialize an object after it's fetched in Nuxt. Nuxt provides built-in functionality for serialization and deserialization of data, especially when transferring data from server to client. According to the Nuxt documentation on serializing data, Nuxt uses devalue for serialization, which allows transferring not just basic JSON but also more advanced types of data, including regular expressions, Dates, Map and Set, ref, reactive, shallowRef, shallowReactive, and NuxtError. For custom types that are not supported by default, you can define your own serializer/deserializer. Here's an example of how you can do this: 1. Define a payload plugin to handle custom serialization/deserialization:

export default definePayloadPlugin((nuxtApp) => {
  definePayloadReducer('CustomType', (value) => {
    // Serialize your custom type
    return value.toJSON()
  })
  definePayloadReviver('CustomType', (value) => {
    // Deserialize your custom type
    return CustomType.fromJSON(value)
  })
})

export default definePayloadPlugin((nuxtApp) => {
  definePayloadReducer('CustomType', (value) => {
    // Serialize your custom type
    return value.toJSON()
  })
  definePayloadReviver('CustomType', (value) => {
    // Deserialize your custom type
    return CustomType.fromJSON(value)
  })
})

2. Use this custom serializer/deserializer in your fetch calls:

const { data } = await useFetch('/api/custom-data', {
  transform: (value) => {
    // Transform the fetched data using your custom deserializer
    return CustomType.fromJSON(value)
  },
})

const { data } = await useFetch('/api/custom-data', {
  transform: (value) => {
    // Transform the fetched data using your custom deserializer
    return CustomType.fromJSON(value)
  },
})

This approach allows you to have a convenient way to deserialize your custom objects after they're fetched. For more detailed information and examples, you can refer to the Nuxt documentation on payload. Remember that this functionality is available since Nuxt v3.4. If you're using an earlier version, you might need to update to take advantage of these features. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4w ago

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Deserialize object after its fetched

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