commit 72e29eb33e62d475f4ae2308dbd0f52aadb48511
from: Murilo Ijanc <murilo@ijanc.org>
date: Fri Apr 24 20:43:51 2026 UTC

add examples/post for POSTing a body to a URL

- body from argv or stdin (-), sent as application/json
- prints response status line, headers, and body

commit - ebd3a89fa7acc0d377dff1cb734a8ab2282153d5
commit + 72e29eb33e62d475f4ae2308dbd0f52aadb48511
blob - /dev/null
blob + 8afa5b0da615280039930825b37e18f4ccc5fba4 (mode 644)
--- /dev/null
+++ examples/post.rs
@@ -0,0 +1,69 @@
+// vim: set tw=79 cc=80 ts=4 sw=4 sts=4 et :
+//
+// Copyright (c) 2026 Murilo Ijanc' <murilo@ijanc.org>
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+
+//! POST a body to a URL and print the response.
+//!
+//! Usage: ex-post <url> <body|->
+//!
+//! If the body argument is `-`, the body is read from stdin.
+
+use std::env;
+use std::io::{self, Read};
+use std::process;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    if args.len() != 3 {
+        eprintln!("usage: ex-post <url> <body|->");
+        process::exit(1);
+    }
+    let url = &args[1];
+    let body = if args[2] == "-" {
+        let mut s = String::new();
+        if let Err(e) = io::stdin().read_to_string(&mut s) {
+            eprintln!("ex-post: read stdin: {e}");
+            process::exit(1);
+        }
+        s
+    } else {
+        args[2].clone()
+    };
+
+    let resp = match http::post(url)
+        .header("Content-Type", "application/json")
+        .body(body)
+        .send()
+    {
+        Ok(r) => r,
+        Err(e) => {
+            eprintln!("ex-post: {e}");
+            process::exit(2);
+        }
+    };
+    println!("{} {} {}", resp.version, resp.status, resp.reason);
+    for (name, value) in resp.headers.iter() {
+        println!("{name}: {value}");
+    }
+    println!();
+    match resp.body_string() {
+        Ok(s) => print!("{s}"),
+        Err(e) => {
+            eprintln!("ex-post: read body: {e}");
+            process::exit(2);
+        }
+    }
+}