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feat: add support for MAB split overrides #29

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feat: add support for MAB split overrides #29

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0dd2de2
feat: add support for MAB split overrides
ramboz May 30, 2024
eeb7899
feat: add support for MAB split overrides
ramboz May 30, 2024
56d4e12
feat: add support for MAB split overrides
ramboz Jun 3, 2024
fb87a9c
chore: update to latest code
ramboz Jun 6, 2024
e4d74e0
chore: rename self learning to auto allocate
ramboz Jun 20, 2024
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23 changes: 23 additions & 0 deletions src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@ export const DEFAULT_OPTIONS = {
experimentsConfigFile: 'manifest.json',
experimentsMetaTag: 'experiment',
experimentsQueryParameter: 'experiment',

mabConfig: '/experiments.splits.json',
};

/**
Expand Down Expand Up @@ -236,6 +238,7 @@ function getConfigForInstantExperiment(
status: context.getMetadata(`${pluginOptions.experimentsMetaTag}-status`) || 'Active',
startDate: context.getMetadata(`${pluginOptions.experimentsMetaTag}-start-date`),
endDate: context.getMetadata(`${pluginOptions.experimentsMetaTag}-end-date`),
selfLearning: context.getMetadata(`${pluginOptions.experimentsMetaTag}-auto-allocate`) || 'false',
id: experimentId,
variants: {},
variantNames: [],
Expand Down Expand Up @@ -365,6 +368,26 @@ async function getConfig(experiment, instantExperiment, pluginOptions, context)
return null;
}

// Load MAB split overrides
if (['active', 'on', 'true'].includes(context.toClassName(experimentConfig.selfLearning))) {
try {
const request = await fetch(pluginOptions.mabConfig);
const json = await request.json();
const [, pageConfig] = Object.entries(json)
.find(([url]) => new URL(url).pathname === window.location.pathname);
const mabConfig = pageConfig
? pageConfig[context.toClassName(experimentConfig.id)]
: null;
if (mabConfig) {
Object.entries(experimentConfig.variants).forEach(([k, v]) => {
v.percentageSplit = (mabConfig[k]).toFixed(4);
});
}
} catch (err) {
// Nothing to do
}
}

const forcedAudience = usp.has(pluginOptions.audiencesQueryParameter)
? context.toClassName(usp.get(pluginOptions.audiencesQueryParameter))
: null;
Expand Down