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<title>Http.expected — Ludic</title>
<meta name="description" content="The body length the server announced, or -1.">
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-http.html">Http</a> <span>›</span> <span class="here">Http.expected</span></div>
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<span class="kind-badge kind-method">method</span>
<h1 id="top">Http.expected</h1>
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<code class="sig">Http.expected(handle) -&gt; int</code>
<div class="desc"><p>Returns the length of the response body as the server announced it (<code>Content-Length</code>), or <code>-1</code> while that is not known. For a request given <a href="http-save_to.html"><code>Http.save_to</code></a> it is known as soon as the headers arrive, and stays <code>-1</code> for a reply sent without a length (chunked) — draw an indeterminate bar then. For an ordinary in-memory request it is <code>-1</code> until the reply lands, then the body length.</p></div>
<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
entry {
let h = Http.open("GET", "https://example.com/big.bin")
Http.save_to(h, "big.bin.part")
Http.send(h)
print(Http.expected(h)) # -1: nothing has arrived yet
}
}</pre></div>
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