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feat: extend Product Attribute Mapping functionality to AddToCart and Checkout #59

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feat: extend Product Attribute Mapping functionality to AddToCart and Checkout #59

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a414e9e
extend product attribute mapping to AddToCart and Checkout event
jaissica12 Nov 25, 2025
76b3c97
update comment for buildProductContents
jaissica12 Nov 25, 2025
0ebd3ac
declare contents variable at function scope to avoid redeclaration
jaissica12 Nov 26, 2025
cf57598
fix indentation in AddToCart if block
jaissica12 Nov 26, 2025
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20 changes: 14 additions & 6 deletions src/FacebookEventForwarder.js
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Original file line number Diff line number Diff line change
Expand Up @@ -216,6 +216,16 @@ var name = 'Facebook',
}
else if (event.ProductAction.ProductActionType == mParticle.ProductActionType.AddToCart){
eventName = ADD_TO_CART_EVENT_NAME;
if (event.ProductAction.TransactionId) {
params['order_id'] = event.ProductAction.TransactionId;
}

// Build contents array for AddToCart events
var contents = buildProductContents(event.ProductAction.ProductList);
if (contents && contents.length > 0) {
params['contents'] = contents;
}

}
else{
eventName = VIEW_CONTENT_EVENT_NAME;
Expand Down Expand Up @@ -243,12 +253,10 @@ var name = 'Facebook',
params['order_id'] = event.ProductAction.TransactionId;
}

// Build contents array for Purchase events
if (event.ProductAction.ProductActionType == mParticle.ProductActionType.Purchase) {
var contents = buildProductContents(event.ProductAction.ProductList);
if (contents && contents.length > 0) {
params['contents'] = contents;
}
// Build contents array for Purchase/Checkout events
var contents = buildProductContents(event.ProductAction.ProductList);
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@rmi22186 rmi22186 Nov 25, 2025

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var contents is being redeclared here. best to declar it at the top of the file rather than twice at 234/257

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@jaissica12 jaissica12 Nov 26, 2025

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Moved contents declaration to the top of the logCommerceEvent function (line 171)

if (contents && contents.length > 0) {
params['contents'] = contents;
}
}
else if (event.ProductAction.ProductActionType == mParticle.ProductActionType.RemoveFromCart) {
Expand Down
153 changes: 151 additions & 2 deletions test/tests.js
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Original file line number Diff line number Diff line change
Expand Up @@ -371,6 +371,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('eventAttr1', 'value1');
window.fbqObj.params.should.have.property('eventAttr2', 'value2');
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.have.property('order_id', 123);
window.fbqObj.params.should.have.property('contents');

done();
});
Expand Down Expand Up @@ -439,7 +441,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('checkout_step', 1);
window.fbqObj.params.should.have.property('num_items', 9);
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);

window.fbqObj.params.should.have.property('order_id', 123);
window.fbqObj.params.should.have.property('contents');

done();
});
Expand Down Expand Up @@ -481,7 +484,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('content_name', 'eCommerce - AddToCart');
window.fbqObj.params.should.have.property('content_ids', ['12345']);
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('contents');
window.fbqObj.params.should.have.property('contents');
window.fbqObj.params.should.have.property('order_id', 123);

done();
});
Expand Down Expand Up @@ -540,6 +544,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('content_name', 'eCommerce - AddToCart');
window.fbqObj.params.should.have.property('content_ids', ['12345', '888', '666']);
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.have.property('order_id', 123);
window.fbqObj.params.should.have.property('contents');

done();
});
Expand Down Expand Up @@ -581,6 +587,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('content_name', 'eCommerce - RemoveFromCart');
window.fbqObj.params.should.have.property('content_ids', ['12345']);
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('order_id');
window.fbqObj.params.should.not.have.property('contents');

done();
});
Expand Down Expand Up @@ -621,6 +629,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('content_name', 'eCommerce - RemoveFromCart');
window.fbqObj.params.should.have.property('content_ids', ['12345']);
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('order_id');
window.fbqObj.params.should.not.have.property('contents');

done();
});
Expand Down Expand Up @@ -685,6 +695,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('eventAttr1', 'value1');
window.fbqObj.params.should.have.property('eventAttr2', 'value2');
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('order_id');
window.fbqObj.params.should.not.have.property('contents');

done();
});
Expand Down Expand Up @@ -732,6 +744,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('eventAttr1', 'value1');
window.fbqObj.params.should.have.property('eventAttr2', 'value2');
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('order_id');
window.fbqObj.params.should.not.have.property('contents');

done();
});
Expand Down Expand Up @@ -778,6 +792,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('eventAttr1', 'value1');
window.fbqObj.params.should.have.property('eventAttr2', 'value2');
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('order_id');
window.fbqObj.params.should.not.have.property('contents');

done();
});
Expand Down Expand Up @@ -824,6 +840,8 @@ describe('Facebook Forwarder', function () {
window.fbqObj.params.should.have.property('eventAttr1', 'value1');
window.fbqObj.params.should.have.property('eventAttr2', 'value2');
window.fbqObj.eventData.should.have.property('eventID', SOURCE_MESSAGE_ID);
window.fbqObj.params.should.not.have.property('order_id');
window.fbqObj.params.should.not.have.property('contents');

done();
});
Expand Down Expand Up @@ -924,5 +942,136 @@ describe('Facebook Forwarder', function () {

done();
});

it('should build contents array with mapped attributes for AddToCart events', function (done) {
// Initialize with product attribute mapping
mParticle.forwarder.init({
pixelCode: 'test-pixel-code',
"productAttributeMapping":"[{"jsmap":"3373707","map":"Name","maptype":"ProductAttributeSelector.Name","value":"custom_name"},{"jsmap":"93997959","map":"Brand","maptype":"ProductAttributeSelector.Name","value":"custom_brand"},{"jsmap":"106934601","map":"Price","maptype":"ProductAttributeSelector.Name","value":"custom_price"},{"jsmap":"50511102","map":"Category","maptype":"ProductAttributeSelector.Name","value":"custom_category"},{"jsmap":"94842723","map":"category","maptype":"ProductAttributeSelector.Name","value":"custom_attribute_category"}]"
}, reportService.cb, true);

mParticle.forwarder.process({
EventName: 'eCommerce - AddToCart',
EventDataType: MessageType.Commerce,
ProductAction: {
ProductActionType: ProductActionType.AddToCart,
ProductList: [
{
Sku: 'sku-12',
Name: 'iPhone',
Brand: 'Apple',
Category: 'electronics',
Variant: 'blue',
Price: 1000.99,
Quantity: 1,
Attributes: {
category: 'phones'
}
},
{
Sku: 'sku-34',
Name: 'Watch',
Brand: 'Samsung',
Price: 450.99,
Quantity: 2
}
],
TransactionId: 123
},
CurrencyCode: 'USD',
SourceMessageId: SOURCE_MESSAGE_ID,
});

checkBasicProperties('track');
window.fbqObj.should.have.property('eventName', 'AddToCart');
window.fbqObj.params.should.have.property('contents');
window.fbqObj.params.contents.length.should.equal(2);
window.fbqObj.params.should.have.property('order_id', 123);

var firstProduct = window.fbqObj.params.contents[0];
// Standard Facebook fields
firstProduct.should.have.property('id', 'sku-12');
firstProduct.should.have.property('name', 'iPhone');
firstProduct.should.have.property('brand', 'Apple');
firstProduct.should.have.property('item_price', 1000.99);
firstProduct.should.have.property('quantity', 1);

// Mapped standard fields
firstProduct.should.have.property('custom_name', 'iPhone');
firstProduct.should.have.property('custom_brand', 'Apple');
firstProduct.should.have.property('custom_price', 1000.99);
firstProduct.should.have.property('custom_category', 'electronics');

// Mapped custom attribute
firstProduct.should.have.property('custom_attribute_category', 'phones');

done();
});

it('should build contents array with mapped attributes for Checkout events', function (done) {
// Initialize with product attribute mapping
mParticle.forwarder.init({
pixelCode: 'test-pixel-code',
"productAttributeMapping":"[{"jsmap":"3373707","map":"Name","maptype":"ProductAttributeSelector.Name","value":"custom_name"},{"jsmap":"93997959","map":"Brand","maptype":"ProductAttributeSelector.Name","value":"custom_brand"},{"jsmap":"106934601","map":"Price","maptype":"ProductAttributeSelector.Name","value":"custom_price"},{"jsmap":"50511102","map":"Category","maptype":"ProductAttributeSelector.Name","value":"custom_category"},{"jsmap":"94842723","map":"category","maptype":"ProductAttributeSelector.Name","value":"custom_attribute_category"}]"
}, reportService.cb, true);

mParticle.forwarder.process({
EventName: 'eCommerce - Checkout',
EventDataType: MessageType.Commerce,
ProductAction: {
ProductActionType: ProductActionType.Checkout,
ProductList: [
{
Sku: 'sku-12',
Name: 'iPhone',
Brand: 'Apple',
Category: 'electronics',
Variant: 'blue',
Price: 1000.99,
Quantity: 1,
Attributes: {
category: 'phones'
}
},
{
Sku: 'sku-34',
Name: 'Watch',
Brand: 'Samsung',
Price: 450.99,
Quantity: 2
}
],
TransactionId: 123,
TotalAmount: 1902.97
},
CurrencyCode: 'USD',
SourceMessageId: SOURCE_MESSAGE_ID,
});

checkBasicProperties('track');
window.fbqObj.should.have.property('eventName', 'InitiateCheckout');
window.fbqObj.params.should.have.property('contents');
window.fbqObj.params.contents.length.should.equal(2);
window.fbqObj.params.should.have.property('order_id', 123);

var firstProduct = window.fbqObj.params.contents[0];
// Standard Facebook fields
firstProduct.should.have.property('id', 'sku-12');
firstProduct.should.have.property('name', 'iPhone');
firstProduct.should.have.property('brand', 'Apple');
firstProduct.should.have.property('item_price', 1000.99);
firstProduct.should.have.property('quantity', 1);

// Mapped standard fields
firstProduct.should.have.property('custom_name', 'iPhone');
firstProduct.should.have.property('custom_brand', 'Apple');
firstProduct.should.have.property('custom_price', 1000.99);
firstProduct.should.have.property('custom_category', 'electronics');

// Mapped custom attribute
firstProduct.should.have.property('custom_attribute_category', 'phones');

done();
});
});
});