invalid URL escape \"%2F\"

[kramuenke]

When passing an exporter endpoint including a path the config can not parse the url.

Versions

1.17

Steps to reproduce

Use a config like this:

otelShudown, err := otelconfig.ConfigureOpenTelemetry(
   otelconfig.WithServiceName("my-server"),
   otelconfig.WithExporterEndpoint("https://myproxy.com/otlp"),
   otelconfig.WithExporterProtocol(otelconfig.ProtocolHTTPProto),
)

produces the following error:

error: traces export: parse \"https://myproxy.com%2Fotlp/v1/traces\": invalid URL escape \"%2F\"

Additional context
We are using an http proxy to send our traces to honeycomb as we want to keep honeycomb api keys in one place.

[kramuenke]

Suggestion to fix:

split the endpoint here when it has an extra path and use otlptracehttp.WithURLPath. Or provide the same functionality via your own config.

[JamieDanielson]

From what I can tell this is a duplicate of the problems described in #94 and it may require a larger change which is still on our backlog. If I have that wrong please feel free to comment on here to reopen the issue.