function that takes a model value and turns it into a json value
function that takes a json value and turns it into a model value. It also takes context argument, which can allow you to deserialize based on the context of other parameters.
OptionaladditionalArgs: AdditionalPropArgsoptional object that contains beforeDeserialize and/or afterDeserialize handlers
const schemaDefault = createSimpleSchema({
a: custom(
v => v + 2,
v => v - 2
)
})
serialize(schemaDefault, { a: 4 }) // { "a": 6 }
deserialize(schemaDefault, { "a": 6 }) // { a: 4 }
const schemaWithAsyncProps = createSimpleSchema({
a: custom(
v => v + 2,
(v, context, oldValue, callback) =>
somePromise(v, context, oldValue)
.then(result => callback(null, result - 2))
.catch(err => callback(err))
)
})
serialize(schemaWithAsyncProps, { a: 4 }) // { "a": 6 }
deserialize(schemaWithAsyncProps, { "a": 6 }, (err, res) => {
res // { a: 4 }
}
Can be used to create simple custom propSchema. Multiple things can be done inside of a custom propSchema, like deserializing and serializing other (polymorphic) objects, skipping the serialization of something or checking the context of the obj being (de)serialized.
The custom function takes two parameters, the serializer function and the deserializer
function.
The serializer function has the signature:
(value, key, obj) => void
When serializing the object {a: 1} the serializer function will be called with
serializer(1, 'a', {a: 1}).
The deserializer function has the following signature for synchronous processing
(value, context, oldValue) => void
For asynchronous processing the function expects the following signature
(value, context, oldValue, callback) => void
When deserializing the object {b: 2} the deserializer function will be called with
deserializer(2, contextObj)
(contextObj reference).
function that takes a model value and turns it into a json value
function that takes a json value and turns it into a model value. It also takes context argument, which can allow you to deserialize based on the context of other parameters.
OptionaladditionalArgs: AdditionalPropArgsoptional object that contains beforeDeserialize and/or afterDeserialize handlers
const schemaDefault = createSimpleSchema({
a: custom(
v => v + 2,
v => v - 2
)
})
serialize(schemaDefault, { a: 4 }) // { "a": 6 }
deserialize(schemaDefault, { "a": 6 }) // { a: 4 }
const schemaWithAsyncProps = createSimpleSchema({
a: custom(
v => v + 2,
(v, context, oldValue, callback) =>
somePromise(v, context, oldValue)
.then(result => callback(null, result - 2))
.catch(err => callback(err))
)
})
serialize(schemaWithAsyncProps, { a: 4 }) // { "a": 6 }
deserialize(schemaWithAsyncProps, { "a": 6 }, (err, res) => {
res // { a: 4 }
}
Can be used to create simple custom propSchema. Multiple things can be done inside of a custom propSchema, like deserializing and serializing other (polymorphic) objects, skipping the serialization of something or checking the context of the obj being (de)serialized.
The
customfunction takes two parameters, theserializerfunction and thedeserializerfunction.The
serializerfunction has the signature:(value, key, obj) => voidWhen serializing the object
{a: 1}theserializerfunction will be called withserializer(1, 'a', {a: 1}).The
deserializerfunction has the following signature for synchronous processing(value, context, oldValue) => voidFor asynchronous processing the function expects the following signature
(value, context, oldValue, callback) => voidWhen deserializing the object
{b: 2}thedeserializerfunction will be called withdeserializer(2, contextObj)(contextObj reference).