CODEWITHSUNDEEP
javaspringspring-bootjacksonkotlin
Chad
Chad

Reputation: 2071

Instant cannot be serialized to appropriate format even with jackson-datatype-jsr310

Adding the following dependencies:

compile("com.fasterxml.jackson.module:jackson-module-parameter-names:2.8.9")
compile("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.8.9")
compile("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.8.9")

I am now able to deserialize the following JSON with Instant:

{
    "timestamp": {{$timestamp}}
}

to the following object:

Transaction(timestamp=2017-07-02T10:58:18Z)

with the following class declaration

data class Transaction(@NotNull val timestamp: Instant)

However, when immediately serializing afterwards, I get the following:

{
  "timestamp": 1498992172
}

I am using Spring Boot with Kotlin.

Upvotes: 1

Views: 599

Answers (1)

JB Nizet
JB Nizet

Reputation: 691785

You need to disable the feature WRITE_DATES_AS_TIMESTAMPS:

This can be achieved by adding the following in your application.yml file:

spring:
  jackson:
    serialization:
      WRITE_DATES_AS_TIMESTAMPS: false

Upvotes: 1

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