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fix(metrics): store service name in defaultDimensions to avoid clearing it #1146

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merged 3 commits into from
Nov 9, 2022
Merged

fix(metrics): store service name in defaultDimensions to avoid clearing it #1146

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d1abd7f
fix: store service name in defaultDimensions
dreamorosi Nov 8, 2022
5f9ffc1
fix: changed behavior also in singleMetric
dreamorosi Nov 8, 2022
ef49171
chore: unit test
dreamorosi Nov 8, 2022
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6 changes: 3 additions & 3 deletions packages/metrics/src/Metrics.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -177,8 +177,8 @@ class Metrics extends Utility implements MetricsInterface {
if (!this.isColdStart()) return;
const singleMetric = this.singleMetric();

if (this.dimensions.service) {
singleMetric.addDimension('service', this.dimensions.service);
if (this.defaultDimensions.service) {
singleMetric.setDefaultDimensions({ service: this.defaultDimensions.service });
}
if (this.functionName != null) {
singleMetric.addDimension('function_name', this.functionName);
Expand Down Expand Up @@ -455,7 +455,7 @@ class Metrics extends Utility implements MetricsInterface {
this.getCustomConfigService()?.getServiceName() ||
this.getEnvVarsService().getServiceName()) as string;
if (targetService.length > 0) {
this.addDimension('service', targetService);
this.setDefaultDimensions({ service: targetService });
}
}

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8 changes: 4 additions & 4 deletions packages/metrics/tests/unit/middleware/middy.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -247,14 +247,14 @@ describe('Middy middleware', () => {
CloudWatchMetrics: [
{
Namespace: 'serverlessAirline',
Dimensions: [[ 'environment', 'aws_region', 'service', 'function_name' ]],
Dimensions: [[ 'service', 'environment', 'aws_region', 'function_name' ]],
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This change (& the one a few lines below) is needed because we are comparing the JSON.stringif-ied version of these strings, so order counts.

I could have converted to object comparison but wanted to keep the diff small.

Metrics: [{ Name: 'ColdStart', Unit: 'Count' }],
},
],
},
service: 'orders',
environment: 'prod',
aws_region: 'eu-west-1',
service: 'orders',
function_name: 'foo-bar-function',
ColdStart: 1,
})
Expand All @@ -267,14 +267,14 @@ describe('Middy middleware', () => {
CloudWatchMetrics: [
{
Namespace: 'serverlessAirline',
Dimensions: [[ 'environment', 'aws_region', 'service' ]],
Dimensions: [[ 'service', 'environment', 'aws_region' ]],
Metrics: [{ Name: 'successfulBooking', Unit: 'Count' }],
},
],
},
service: 'orders',
environment: 'prod',
aws_region: 'eu-west-1',
service: 'orders',
successfulBooking: 1,
})
);
Expand Down