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>
58 lines
1.1 KiB
Markdown
58 lines
1.1 KiB
Markdown
# Step 1 — Simple Total Latency
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## What this step delivers
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`latprobe` accepts one or more URLs and prints the total wall-clock time of
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each HTTP GET request (including body download). No per-phase breakdown yet —
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that comes in Step 2.
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## Build
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```sh
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cd go
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go build -o latprobe .
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```
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## Usage
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```sh
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latprobe <url> [url ...]
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```
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## Examples
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Single URL:
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```sh
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$ ./latprobe https://example.com
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https://example.com 200 70ms
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```
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Multiple URLs:
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```sh
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$ ./latprobe https://example.com https://www.google.com
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https://example.com 200 70ms
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https://www.google.com 200 127ms
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```
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Error (unreachable host):
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```sh
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$ ./latprobe https://doesnotexist.invalid
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error https://doesnotexist.invalid: Get "https://doesnotexist.invalid": ...
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# exits with code 1
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```
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## Output columns
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| Column | Description |
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|--------|-------------|
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| URL | The requested URL |
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| Status | HTTP response status code |
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| Total | Wall-clock time from request start to body fully received |
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## Flags accepted (not yet functional)
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`-n`/`--count` and `--json` are parsed but produce no effect until Steps 3–4.
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