mstr-report-data-service/src/parseMstrResults.js

A Node function for calling Microstrategy's reportDataService task and returning the payload as JSON.

import {
    parseString
} from 'xml2js';
import {
    camelCase
} from 'lodash';
import parseValue from './parseValue'


// custom parsing function
export default function parseMstrResults(xmlBody) {
    return new Promise((resolve, reject) => {
        parseString(xmlBody, {}, (err, json) => {
            if (err) return reject(err)
            // parent reportData object
            let reportData = json.taskResponse.report_data_list[0].report_data[0]

            // basic meta
            let reportName = reportData.$.name

            // report objects, like 'day'
            let reportObjects = reportData.objects[0].attribute.map(attr => attr.$)

            // report metrics, like 'activations'
            let reportMetrics = reportData.objects[0].metric.map(metric => metric.$)

            // report row headers, report layout
            let reportRowHeaders = reportData.raw_data[0].headers[0].oi.map(header => {
                let id = header.$.rfd
                // concat objects/metrics as headers
                let name = [...reportObjects, ...reportMetrics].filter(value => value.rfd == id)[0].name
                // return header name and rfd id #
                return {
                    rfd: id,
                    name
                }
            })

            // report row data, with headers as object keys/properties
            // json array
            let reportRowValues = reportData.raw_data[0].rows[0].r.map((row) => {
                // declare object to return
                let returnObject = {}

                // iterate over value array, and assign rowheader as key/property
                row.v.forEach((v, index) => {
                    let value = v._
                    let key = camelCase(reportRowHeaders[index].name)
                    returnObject[key] = parseValue(value)
                })
                return returnObject
            })

            resolve({
                name: reportName,
                data: reportRowValues
            })
        })
    })

}