This is a simple VAST parser and builder heavily using xml2js. This VAST parser is used to keep a consistent and compliant VAST structure between building and parsing. Validation is NOT implemented yet so use at your own risk.
const vastXML = require('../index');
fsReadFile('./test-data/vast-inline.xml').bind(this)
.then((str) => {
this.xmlFileStr = str;
return vastXML.parse(str);
})
.then((json) => {
this.vastJson = json;
console.log(json.vast.getAttr('version'));
console.log(json.vast.ad[0].inLine.adSystem.getValue());
}); const vastXML = require('../index');
const vastJson = {
"vast": {
"_attr": {
"version": "4.0"
},
"ad": [
{
"_attr": {
"id": "abc123",
"sequence": "0"
},
"inLine": {
"adSystem": {
"_value": "Shibby Service",
"_attr": {
"version": "1.0"
}
},
"adTitle": {
"_value": "VAST 4.0 Test"
},
"impression": [
{
"_value": "http://myTrackingURL/impression"
}
],
"category": [
{
"_value": "Inline Video",
"_attr": {
"authority": "IAB"
}
}
],
"description": {
"_value": "VAST Inline"
},
"advertiser": {
"_value": "IAB"
},
"pricing": {
"_value": "4.00",
"_attr": {
"model": "CPM",
"currency": "USD"
}
},
"survey": [
{
"_value": "https://iab.com/survey.js",
"_attr": {
"type": "text/javascript"
}
}
],
"extensions": "",
"viewableImpression": {
"viewable": [
{
"_value": "https://iab.com/viewable"
}
],
"notViewable": [
{
"_value": "https://iab.com/notViewable"
}
],
"viewUndetermined": [
{
"_value": "https://iab.com/notDetermined"
}
]
},
"adVerification": "",
"creatives": {
"creative": [
{
"_attr": {
"adId": "abc123",
"sequence": "0",
"apiFramework": "iab-api"
},
"universalAdId": {
"_value": "unknown",
"_attr": {
"idValue": "unknown"
}
},
"creativeExtensions": {
"creativeExtension": [
{
"custom": {
"_value": "this is custom stuff"
}
}
]
},
"linear": {
"duration": {
"_value": "00:00:30"
},
"trackingEvents": {
"tracking": [
{
"_value": "http://iab.com/creativeView",
"_attr": {
"event": "creativeView"
}
},
{
"_value": "http://iab.com/start",
"_attr": {
"event": "start"
}
},
{
"_value": "http://iab.com/midpoint",
"_attr": {
"event": "midpoint"
}
},
{
"_value": "http://iab.com/firstQuartile",
"_attr": {
"event": "firstQuartile"
}
},
{
"_value": "http://iab.com/thirdQuartile",
"_attr": {
"event": "thirdQuartile"
}
},
{
"_value": "http://iab.com/complete",
"_attr": {
"event": "complete"
}
}
]
},
"videoClicks": {
"clickThrough": {
"_value": "http://iab.com"
},
"clickTracking": [
{
"_value": "http://iab.com/click"
}
]
},
"mediaFiles": {
"mediaFile": [
{
"_value": "http://iad.com/test.mp4",
"_attr": {
"delivery": "progressive",
"type": "video/mp4",
"bitrate": "600",
"width": "1920",
"height": "1080",
"scalable": "true",
"maintainAspectRatio": "true"
}
}
]
},
"adParameters": {
"_value": "qs=test&reddit=true"
},
"icons": {
"icon": [
{
"_value": "http://adchoices.com"
}
]
}
}
},
{
"_attr": {
"adID": "123-Companion"
},
"companionAds": {
"companion": [
{
"_attr": {
"width": "1920",
"height": "1080",
"assetWidth": "1920",
"assetHeight": "1080"
},
"htmlResource": [
{
"_value": "http://adserver.com/htmlresourcefile.htm"
}
],
"trackingEvents": {
"tracking": [
{
"_value": "http://iad.com/firstCompanionCreativeView",
"_attr": {
"event": "creativeView"
}
}
]
}
},
{
"_attr": {
"width": "1920",
"height": "80"
},
"staticResource": [
{
"_value": "http://iad.com/companion.jpg?test1=true&test2=false",
"_attr": {
"creativeType": "image/jpeg"
}
}
],
"companionClickThrough": {
"_value": "http://www.iab.com/clickThrough"
}
}
]
}
}
]
}
}
}
]
}
};
return vastXML.build(JSON.parse(JSON.stringify(vastJson)));- Add Validation when building and parsing VAST 4.0
- Add Utility Functions setValue and setAttr for building VAST