Problem description
Start the project and call http://localhost:8080/examples, JSON serialization of the Example entity with Money will fail, the following error will appear in the log:
Resolved [org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Can not start an object, expecting field name (context: Object); nested exception is com.fasterxml.jackson.core.JsonGenerationException: Can not start an object, expecting field name (context: Object)]
Use id("org.springframework.boot") version "2.3.4.RELEASE" in build.gradle.kts
and start the project again, now the call to http://localhost:8080/examples works and returns:
{
"_embedded" : {
"examples" : [ {
"price" : {
"amount" : 123.00,
"currency" : "EUR"
},
"_links" : {
"self" : {
"href" : "http://localhost:8080/examples/1"
},
"example" : {
"href" : "http://localhost:8080/examples/1"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:8080/examples"
},
"profile" : {
"href" : "http://localhost:8080/profile/examples"
}
}
}