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feat(remote-config): add optional exposurePercent field to ExperimentValue #3096

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feat(remote-config): add optional exposurePercent field to ExperimentValue #3096

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2b5ab54
feat(remote-config): add optional exposurePercent field to Experiment…
tusharkhandelwal8 Mar 23, 2026
55fc2b1
document the expected range for the exposure
tusharkhandelwal8 Mar 23, 2026
50392c7
correct field ordering in ExperimentValue API report
tusharkhandelwal8 Mar 23, 2026
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1 change: 1 addition & 0 deletions etc/firebase-admin.remote-config.api.md
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ export interface ExperimentParameterValue {
// @public
export interface ExperimentValue {
experimentId: string;
exposurePercent?: number;
variantValue: ExperimentVariantValue[];
}

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6 changes: 6 additions & 0 deletions src/remote-config/remote-config-api.ts
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Expand Up @@ -451,6 +451,12 @@ export interface ExperimentValue {
* served by the Experiment.
*/
variantValue: ExperimentVariantValue[];

/**
* The percentage of users included in the Experiment, represented as a number
* between 0 and 100.
*/
exposurePercent?: number;
}

/**
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7 changes: 5 additions & 2 deletions test/unit/remote-config/remote-config.spec.ts
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Expand Up @@ -134,7 +134,8 @@ describe('RemoteConfig', () => {
variantValue: [
{ variantId: 'variant_A', value: 'true' },
{ variantId: 'variant_B', noChange: true }
]
],
exposurePercent: 25,
}
}
},
Expand Down Expand Up @@ -233,7 +234,8 @@ describe('RemoteConfig', () => {
variantValue: [
{ variantId: 'variant_A', value: 'true' },
{ variantId: 'variant_B', noChange: true }
]
],
exposurePercent: 25,
}
}
},
Expand Down Expand Up @@ -652,6 +654,7 @@ describe('RemoteConfig', () => {
expect(p4.conditionalValues).to.not.be.undefined;
const experimentParam = p4.conditionalValues!['ios'] as ExperimentParameterValue;
expect(experimentParam.experimentValue.experimentId).to.equal('experiment_1');
expect(experimentParam.experimentValue.exposurePercent).to.equal(25);
expect(experimentParam.experimentValue.variantValue.length).to.equal(2);
expect(experimentParam.experimentValue.variantValue[0]).to.deep.equal({ variantId: 'variant_A', value: 'true' });
expect(experimentParam.experimentValue.variantValue[1]).to.deep.equal({ variantId: 'variant_B', noChange: true });
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