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feat: add histograms for request time

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This commit is contained in:
Jon Lundy
2022-09-07 17:38:36 -06:00
parent 6425fcadcd
commit 9103de501b
3 changed files with 75 additions and 22 deletions
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40
app/salty/service.go
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@@ -17,7 +17,9 @@ import (
"github.com/sour-is/ev/pkg/es"
"github.com/sour-is/ev/pkg/es/event"
"github.com/sour-is/ev/pkg/gql"
"go.opentelemetry.io/otel/metric/instrument"
"go.opentelemetry.io/otel/metric/instrument/syncint64"
"go.opentelemetry.io/otel/metric/unit"
"go.uber.org/multierr"
)
@@ -66,25 +68,40 @@ func New(ctx context.Context, es *es.EventStore, baseURL string) (*service, erro
svc := &service{baseURL: baseURL, es: es, dns: net.DefaultResolver}
var err, errs error
svc.m_create_user, err = m.SyncInt64().Counter("salty_create_user")
svc.m_create_user, err = m.SyncInt64().Counter("salty_create_user",
instrument.WithDescription("salty create user graphql called"),
)
errs = multierr.Append(errs, err)
svc.m_get_user, err = m.SyncInt64().Counter("salty_get_user")
svc.m_get_user, err = m.SyncInt64().Counter("salty_get_user",
instrument.WithDescription("salty get user graphql called"),
)
errs = multierr.Append(errs, err)
svc.m_api_ping, err = m.SyncInt64().Counter("salty_api_ping")
svc.m_api_ping, err = m.SyncInt64().Counter("salty_api_ping",
instrument.WithDescription("salty api ping called"),
)
errs = multierr.Append(errs, err)
svc.m_api_register, err = m.SyncInt64().Counter("salty_api_register")
svc.m_api_register, err = m.SyncInt64().Counter("salty_api_register",
instrument.WithDescription("salty api register"),
)
errs = multierr.Append(errs, err)
svc.m_api_lookup, err = m.SyncInt64().Counter("salty_api_lookup")
svc.m_api_lookup, err = m.SyncInt64().Counter("salty_api_lookup",
instrument.WithDescription("salty api ping lookup"),
)
errs = multierr.Append(errs, err)
svc.m_api_send, err = m.SyncInt64().Counter("salty_api_send")
svc.m_api_send, err = m.SyncInt64().Counter("salty_api_send",
instrument.WithDescription("salty api ping send"),
)
errs = multierr.Append(errs, err)
svc.m_req_time, err = m.SyncInt64().Histogram("salty_request_time")
svc.m_req_time, err = m.SyncInt64().Histogram("salty_request_time",
instrument.WithDescription("histogram of requests"),
instrument.WithUnit(unit.Unit("ns")),
)
errs = multierr.Append(errs, err)
span.RecordError(err)
@@ -113,7 +130,7 @@ func (s *service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
defer span.End()
start := time.Now()
defer s.m_req_time.Record(ctx, int64(time.Since(start)))
defer s.m_req_time.Record(ctx, time.Since(start).Milliseconds())
addr := "saltyuser-" + strings.TrimPrefix(r.URL.Path, "/.well-known/salty/")
addr = strings.TrimSuffix(addr, ".json")
@@ -152,6 +169,8 @@ func (s *service) CreateSaltyUser(ctx context.Context, nick string, pub string)
defer span.End()
s.m_create_user.Add(ctx, 1)
start := time.Now()
defer s.m_req_time.Record(ctx, time.Since(start).Milliseconds())
streamID := fmt.Sprintf("saltyuser-%x", sha256.Sum256([]byte(strings.ToLower(nick))))
span.AddEvent(streamID)
@@ -182,6 +201,8 @@ func (s *service) SaltyUser(ctx context.Context, nick string) (*SaltyUser, error
defer span.End()
s.m_get_user.Add(ctx, 1)
start := time.Now()
defer s.m_req_time.Record(ctx, time.Since(start).Milliseconds())
streamID := fmt.Sprintf("saltyuser-%x", sha256.Sum256([]byte(strings.ToLower(nick))))
span.AddEvent(streamID)
@@ -214,6 +235,9 @@ func (s *service) apiv1(w http.ResponseWriter, r *http.Request) {
ctx, span := lg.Span(ctx)
defer span.End()
start := time.Now()
defer s.m_req_time.Record(ctx, time.Since(start).Nanoseconds())
switch r.Method {
case http.MethodGet:
switch {