Jan Novak
a588eb3b0e
probe.Measure performs an HTTP GET and records total elapsed time from request start to body fully read. main.go prints URL, status code, and total for each positional URL argument, exiting 1 on any failure. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
1.1 KiB
1.1 KiB
Step 1 — Simple Total Latency
What this step delivers
latprobe accepts one or more URLs and prints the total wall-clock time of
each HTTP GET request (including body download). No per-phase breakdown yet —
that comes in Step 2.
Build
cd go
go build -o latprobe .
Usage
latprobe <url> [url ...]
Examples
Single URL:
$ ./latprobe https://example.com
https://example.com 200 70ms
Multiple URLs:
$ ./latprobe https://example.com https://www.google.com
https://example.com 200 70ms
https://www.google.com 200 127ms
Error (unreachable host):
$ ./latprobe https://doesnotexist.invalid
error https://doesnotexist.invalid: Get "https://doesnotexist.invalid": ...
# exits with code 1
Output columns
| Column | Description |
|---|---|
| URL | The requested URL |
| Status | HTTP response status code |
| Total | Wall-clock time from request start to body fully received |
Flags accepted (not yet functional)
-n/--count and --json are parsed but produce no effect until Steps 3–4.