Merge branch 'initial_implementation' of github.com:krakend/krakend-otel into initial_implementation

Author: dhontecillas

lura/proxy.go

@@ -170,15 +170,17 @@ func ProxyFactory(pf proxy.Factory, gsfn state.GetterFn, opts *kotelconfig.PipeO
 // BackendFactory returns a backend factory that wraps the provided backend factory with the
 // instrumentation [Middleware] based on the configuration options.
 func BackendFactory(bf proxy.BackendFactory, gsfn state.GetterFn, opts *kotelconfig.BackendOpts,
-	skipPaths []string) proxy.BackendFactory {
+	skipPaths []string,
+) proxy.BackendFactory {
 	if opts == nil || (opts.Metrics.DisableStage && opts.Traces.DisableStage) {
 		return bf
 	}
 	return OTELBackendFactory(bf, gsfn, !opts.Metrics.DisableStage, !opts.Traces.DisableStage, skipPaths)
 }
 
 func OTELBackendFactory(bf proxy.BackendFactory, gsfn state.GetterFn, metricsEnabled bool, tracesEnabled bool,
-	skipPaths []string) proxy.BackendFactory {
+	skipPaths []string,
+) proxy.BackendFactory {
 	return func(cfg *config.Backend) proxy.Proxy {
 		next := bf(cfg)
 		for _, sp := range skipPaths {