net/http.ServeMux.HandleFunc
standard libraryThe 342nd most-called standard-library method by production calls. Called 13,499 times across 261 modules; 2,491 of those run outside tests and generated code.
- prod calls
- 2,491
- non-test, non-generated
- all calls
- 13,499
- total callsites
- modules
- 261
- distinct callers
- in loop
- 1%
- of prod calls
- in tests
- 82%
- 11,008 calls
- resolved
- 100%
- to a known target
resolution mix
How each call resolves
How each call was attributed. Only resolved kinds, where the target function is known, count toward the ranking. Interface dispatch and unresolved receivers are reported separately and never guessed. Read the taxonomy →
- Concrete method100%A method on a value whose type is known exactly.
- Embedded method<1%Reached through an embedded type.
who calls this
Notable callers
Production calls into ServeMux.HandleFunc from notable Go projects. Open one on the map to see what else it hammers.
- Kubernetes 174 7%
- Nomad 104 4%
- Tailscale 75 3%
- Istio 64 3%
- Docker 27 1%
where it's called
Callsites in the wild
12 representative callsites of 13,499, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
-
cockroachdb/cockroach @v19.2.12+incompatible
in loop - in loop
-
cloudflare/redoctober @v0.0.0-20260504155104-06fca39f75df
in loop - in loop
- in loop
- in loop
- in loop
- in loop
- in loop
-
stashapp/stash @v0.31.1
in loop -
gohugoio/hugo @v0.164.0
in loop
top callers
The modules that reach for it
The modules that call ServeMux.HandleFunc most in this snapshot.
- github.com/gophercloud/gophercloud1,34610%
- github.com/google/go-github/v621,1739%
- github.com/cloudflare/cloudflare-go1,0348%
- github.com/google/go-github/v438947%
- github.com/xanzy/go-gitlab8807%
siblings
More from net/http
The other most-called members in this package. See all →