Metrics SDK v0

[AbhiPrasad]

Problem Statement

Sentry is adding support for metrics! See getsentry/sentry#58584 for more details.

This GH issue tracks the progress for metrics in the SDK

Solution Brainstorm

First less establish the core interfaces that make up the metrics SDK

Core

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1. feat(types): Add statsd envelope types #9304
   +0
   
2. feat(metrics): Add interfaces for metrics #9698
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Then let's build a simple metrics aggregator that is meant to be used in the browser. It does not have any jitter mechanisms via a rollup window because it's meant to be used on the FE - we try to minimize bundle size.

Browser

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1. feat(browser): Add browser metrics sdk #9794
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2. Add integration tests for metrics
3. Make sure metrics APIS are exported from nextjs, sveltekit, remix

When this is ready, we can cut a release and test this on the Sentry frontend. Also an opportunity for us to revisits API, and do bundle size optimizations.

After let's create a more complex metrics aggregator that will take into account rollup windows - we can just this for all of our server runtimes.

Server runtime

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1. Add server runtime metrics aggregator #9797
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2. Add code locations support
3. Add metrics summary support

Testing

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1. Test with https://github.com/getsentry/chartcuterie
2. Test with https://github.com/getsentry/session-replay-analyzer

[AbhiPrasad]

The current plan is for there to be a MetricsAggregator object/class that lives on the client.

The browser will have this as an optional implementation, while it will always be implemented for server runtime client.

[AbhiPrasad]

Given we have #9938 and #9973, closing this issue for v0