Convert Model to FormData

convertModelToFormData.ts

export function isEmpty(obj) {
  if (typeof obj === 'string' || obj === '') {
    return false;
  }
  if (typeof obj === 'number' || obj === 0) {
    return false;
  }
  if (typeof obj === 'boolean') {
    return false;
  }

  for (const key in obj) {
    if (obj.hasOwnProperty(key)) {
      return false;
    }
  }

  return true;
}

export function convertModelToFormData(
  model: any,
  form: FormData = null,
  namespace = ''
): FormData {
  const formData = form || new FormData();

  for (const propertyName in model) {
    if (!model.hasOwnProperty(propertyName) || isEmpty(model[propertyName])) {
      continue;
    }
    const formKey = namespace ? `${namespace}[${propertyName}]` : propertyName;
    if (model[propertyName] instanceof Date) {
      formData.append(formKey, model[propertyName].toISOString());
    } else if (model[propertyName] instanceof Array) {
      model[propertyName].forEach((element, index) => {
        const tempFormKey = `${formKey}[${index}]`;
        convertModelToFormData(element, formData, tempFormKey);
      });
    } else if (typeof model[propertyName] === 'object' && !(model[propertyName] instanceof File)) {
      convertModelToFormData(model[propertyName], formData, formKey);
    } else {
      console.log(formKey, model[propertyName].toString());
      formData.append(formKey, model[propertyName].toString());
    }
  }
  return formData;
}