Using Javascript to parse SOAP responses

Currently, I am working on a Meteor application that requires data consumption from both REST and SOAP APIs. The SOAP service is accessed using the soap package, which functions properly. However, I am facing challenges with the format of the returned data. An example of the data structure is provided below:

{
  "attributes": {
    "xsi:type": "SOAP-ENC:Array",
    "SOAP-ENC:arrayType": "tns:course[1]"
  },
  "item": {
    "attributes": {
      "xsi:type": "tns:course"
    },
    "id": {
      "attributes": {
        "xsi:type": "xsd:int"
      },
      "$value": 1
    },
    "code": {
      "attributes": {
        "xsi:type": "xsd:string"
      },
      "$value": "CDP001"
    },
    // ..... More attributes
    "number_students": {
      "attributes": {
        "xsi:type": "xsd:int"
      },
      "$value": 1
    }
  }
}

My attempt to make the same API call in PHP using its SoapClient resulted in the following data structure (displayed using var_dump):

array(1) {
  [0]=>
  object(stdClass)#2 (8) {
    ["id"]=>
    int(1)
    ["code"]=>
    string(6) "CDP001"
    ["external_course_id"]=>
    NULL
    ["title"]=>
    string(23) "Curso Chamilo de prueba"
    ["language"]=>
    string(7) "spanish"
    ["category_name"]=>
    string(9) "PC Skills"
    ["visibility"]=>
    int(2)
    ["number_students"]=>
    int(1)
  }
}

Unlike PHP's SoapClient, JavaScript seems to struggle with parsing the response into a more "normal" JSON object. Therefore, I am curious if there are any existing JavaScript packages that could handle this task efficiently. While I can create my own solution, it would be beneficial to explore available options.

Your insights will be greatly appreciated,

javascriptnode.jstypescriptsoap

Answer №1

Most of the time, you can simply disregard the bulk of the information included in your SOAP response.

To efficiently retrieve the necessary data, consider using this concise approach:

const extractedData = {};
for (let key in soap.item) {
    const attributeObj = soap.item[key];
    if ("$value" in attributeObj) {
        extractedData[key] = attributeObj['$value']
    }
}

In essence, if an attribute lacks a $value field, it does not concern us. The resulting object contains:

{
    "id": 1,
    "code": "CDP001",
    "number_students": 1
}

There might be a requirement for customized logic based on the xsi:type, but I believe it is unlikely.

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