registry/internal/api/router/v0.go
pree-dew d237fc90f8
Add OpenTelemetry metrics instrumentation (#290)
## Motivation and Context
- It is important to have basic observability in place so that
availability issues can be figured out easily

## How Has This Been Tested?
- Registration of metrics is tested
- Prometheus endpoint `/metrics` is included in test cases to test the
metrics exposed
- Test locally to understand any regression.

## Breaking Changes
- No

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [x] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

## Additional context
- Telemetry implementation is currently done by keeping metrics in mind
as of now, other types of telemetry can be added on top of it later.
- Instrumentation takes care of these problems already:
- Cardinality control by limiting latency buckets and not including
labels that grows with throughput.
  - Latency buckets are added as per SLA guidelines
  - Each metric prefixed with `mcp` to easily identify.
- Pulling mechanism is used since the idea is to scrape metrics via an
agent like vmagent, prometheus agent or otel-collector.
- Metrics follow standard approach of defining counters, histogram and
gauges as per opentelemetry guidelines.
2025-08-21 14:23:37 +01:00

22 lines
781 B
Go

// Package router contains API routing logic
package router
import (
"github.com/danielgtaylor/huma/v2"
v0 "github.com/modelcontextprotocol/registry/internal/api/handlers/v0"
v0auth "github.com/modelcontextprotocol/registry/internal/api/handlers/v0/auth"
"github.com/modelcontextprotocol/registry/internal/config"
"github.com/modelcontextprotocol/registry/internal/service"
"github.com/modelcontextprotocol/registry/internal/telemetry"
)
func RegisterV0Routes(
api huma.API, cfg *config.Config, registry service.RegistryService, metrics *telemetry.Metrics,
) {
v0.RegisterHealthEndpoint(api, cfg, metrics)
v0.RegisterPingEndpoint(api)
v0.RegisterServersEndpoints(api, registry)
v0auth.RegisterAuthEndpoints(api, cfg)
v0.RegisterPublishEndpoint(api, registry, cfg)
}