json2typescript serializeObject method returning empty object

Question

I am trying to convert Typescript Contact class back to JSON which is possible according to the documentation for the 'json2typscript' package.

• deserializeObject works fine.

• serializeObject returns an empty obj.

   map(res => {
    const jsonConvert: JsonConvert = new JsonConvert();
    return jsonConvert.deserializeObject(res, Contact);
  })
  

This does not work by returning {}:

 try {
  const obj = new JsonConvert().serializeObject(contact);
  console.log(obj);
} catch (err) {
  console.error(err);
}

This is the class I am trying to map against:

@JsonObject('Contact')
export class Contact {

@JsonProperty('id', String, true)
id: string = undefined;

@JsonProperty('created', String, true)
created: string = undefined;

@JsonProperty('updated', String, true)
updated: string = undefined;

@JsonProperty('first_name', String, true)
firstName: string = undefined;

@JsonProperty('last_name', String, true)
lastName: string = undefined;

@JsonProperty('role', String, true)
role: string = undefined;

@JsonProperty('phone', String, true)
phone: string = undefined;

@JsonProperty('email', String, true)
email: string = undefined;

@JsonProperty('notes', String, true)
notes: string = undefined;

@JsonProperty('companies', [Company])
companies: [] = undefined;
}

Any ideas on how to do this?

Answer 1

As this Pull Request

If you are using an object that is not a real instance of the mapped class you should pass a second argument to serializeObject as a reference class:

jsonConvert.serializeObject(contact, Contact);

Works on v1.3.0+