使用外部 js 库在 Amazon Lambda 中将 XML 解析为 JSON

2023-01-29前端开发问题

本文介绍了使用外部 js 库在 Amazon Lambda 中将 XML 解析为 JSON的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着跟版网的小编来一起学习吧！

问题描述

我正在尝试将我从服务器获取的 XML 字符串转换为我的 Lambda 函数中的 JSON.
我已经设置了这个相当简单的示例来模拟我使用 DynamoDB 从服务器获得的 XML 答案.(目前我只是在尝试进行转换)

I am trying to convert an XML String that I get from a server to JSON inside my Lambda function.
I have set up this rather simple example to simulate the XML answer that i get from the server using DynamoDB. (Currently I'm just trying to get the convertion going)

'use strict';

var AWS = require('aws-sdk');
var docClient = new AWS.DynamoDB.DocumentClient({region: 'eu-west-1'});


exports.handler = function (e, ctx, callback){    
    let table = "dsbTable";
    let bpNumber = 1337;
    var test;
    var x2js = new X2JS();
    let params = {
            TableName: table,
            Key:{
                "bpNumber": bpNumber
            },
        };
    docClient.get(params, function(err, data) {
            if (err) {
                console.error("Unable to read item. Error JSON:", JSON.stringify(err, null, 2));
                callback(err, null);
            } else {
                console.log("GetItem succeeded:", JSON.stringify(data, null, 2));
                console.log('test' +data.Item.getBp);
                //var jsonObj = x2js.xml_str2json(data.Item.getBp);
                //console.log(jsonObj);

                callback(null, data);
            }

    });

}  ;

获取项目工作正常，并像这样返回

getting the item works just fine and is returned like this

{
  "Item": {
    "getBp": "<message version="1.0" system="AVS/3"><header><client>553</client><avs3-sales-organization>7564</avs3-sales-organization><avs3-service-provider>DSD</avs3-service-provider></header><body><business-partner><salutation-code>01</salutation-code><titel-code-academic/><titel-academic/><titel-code-royal/><titel-royal/><job-titel/><last-name1>Pickle</last-name1><last-name2/><first-name>N</first-name><street/><street-suffix/><street-number/><street-number-suffix/><address-line-1>10 Waterside Way</address-line-1><address-line-2/><address-line-3/><zipcode>NN4 7XD</zipcode><country-code>GB</country-code><city>NORTHAMPTON</city><district/><region-code>NH</region-code><region-text>Northamptonshire</region-text><company1/><company2/><company3/><department/><po-box/><po-box-zipcode/><po-box-city/><po-box-country-code/><major-customer-zipcode/><address-source/><advertisement>Y</advertisement><category/><bp-number>1100000772</bp-number><bp-number-external/><bp-group>ABON</bp-group><eu-sales-tax-number/><bic-master-number/><sector/><communication><communication-type>WW</communication-type><communication-value>kate.southorn@dsbnet.co.uk</communication-value><communication-default>Y</communication-default></communication><attribute><attribute-type>ACC</attribute-type><attribute-value>Y</attribute-value></attribute><attribute><attribute-type>OIEMEX</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OINLIN</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OISMEX</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OISMIN</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOEMIN</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOFXEX</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOFXIN</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOPTEX</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOPTIN</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOTEEX</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>OOTEIN</attribute-type><attribute-value>N20121211</attribute-value></attribute><attribute><attribute-type>THEDSU</attribute-type><attribute-value/></attribute></business-partner></body></message>",
    "bpNumber": 1337
  }
}

我现在的主要问题是我不知道如何导入任何 XMLtoJSON 库文件，例如这里的这个

My main issue now is that I can not figure out how i can import any XMLtoJSON library files like this one here

我希望我在这种情况下的代码不是完全没有价值，并且有一个相当简单的解决方案.

I hope my code in this case is not completely worthless and there is a rather simple solution.

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