问将DynamoDb字符串集转换为JSON

EN

permissions:
       Set {
         wrapperName: 'Set',
         values:
          [ 'BannerConfigReadOnly',
            'CampaignBannerCreate',
            'CampaignPromoCreate',
            'CampaignReadOnly',
            'MasterplanReadOnly',
            'SegmentCreate',
            'SegmentDownload',
            'SegmentUpload' ],
         type: 'String' } 
    }

permissions: ['BannerConfigReadOnly',
            'CampaignBannerCreate',
            'CampaignPromoCreate',
            'CampaignReadOnly',
            'MasterplanReadOnly',
            'SegmentCreate',
            'SegmentDownload',
            'SegmentUpload']

{}

const aws = require('aws-sdk');
const documentClient = new aws.DynamoDB.DocumentClient();
documentClient.scan(params, (err, data) => {
    if (err) {
      reject(err);
    } else {
      let processedItems = [...data.Items];
    var test = aws.DynamoDB.Converter.unmarshall(processedItems[0].permissions);
      console.log(`test is ${JSON.stringify(test)}`);
    }});

{ email: 'abc@gmail.com',
  tenant: 'Canada',
  permissions:
   Set {
     wrapperName: 'Set',
     values:
      [ 'BannerConfigReadOnly',
        'CampaignBannerCreate',
        'CampaignPromoCreate',
        'CampaignReadOnly',],
     type: 'String' } }