Recommendation Callbacks

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The JS API can be used to register callbacks to hook into the recommendation events. To register a listener for a callback, use api.listen(callbackId, callbackFunction) function.
Post Render Callback
Called when Nosto has responded and finished recommendation placement.
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nostojs(function(api) {
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  api.listen('postrender', function(event) {
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    console.log(event.filledElements);
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    console.log(event.unFilledElements); 
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  });
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});
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Fields
Field
Type
Reason
filledElements
Array
Contains a list of recommendation slots that contain recommendations
unFilledElements
Array
Contains a list of recommendations slots that did not have get recommendations.
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Pre Render Callback
‌
Called when Nosto has responded but not yet rendered content. The event contains information about the visitor's preferences. 
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nostojs(function(api) {  
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  api.listen('prerender', function(event) {    
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    console.log(event);
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  });
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});
Copied!
‌
Fields
Field
Type
Reason
affinityScores
Object
Describes visitor's most preferred brands and categories, the object has two attributes top_brands and top_categories which are arrays that contain maximum 5 most preferred brands/categories for the visitor. Example content: 
{
  top_brands:[ 
    {name:"Acme", score:0.8}, 
    {name:"Universal", score:0.3}
  ]
}
segments
Object
Information about which segments the visitor falls into. active_segments field contains a list of segment identifiers that were active on the latest request to Nosto. Segment identifiers can be retrieved from the Nosto backend, or queried from the GraphQL API.

Example content:
{
  active_segments:[ 
    {id:"5a497a000000000000000004"}, 
    {id:"5aa12b8960b2352d326d77f1"}
  ]
}
​
​
​

Loading Recommendations

Setting up dynamic filtering

Last modified 11mo ago

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