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<!DOCTYPE html>
<html lang="en">
<head>
<!--__RIM_REDIRECT__-->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Quicksand:wght@300..700&display=swap" rel="stylesheet">
<title>Cache as a web service</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta name="HandheldFriendly" content="True"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<link rel="canonical" href="https://rimstone-lang.com/article-tree-web.html" />
<style>
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letter-spacing: 0px;
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<body>
<div id="google_translate_element" style='float:right'></div>
<script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
<script>
function rim_copy(gt, eid, gc) {
gt.textContent = eid.textContent;
gt.select();
document.execCommand("copy");
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setTimeout(()=>{ gc.style.visibility="hidden"; }, 1000);
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<!--RIMMENU13-->
<!--RIMENDMENU13-->
<!--BEGVDOC90-->
<div class='vhub' style='margin-top:10px;margin-right:20px;text-align:left;background-color:white;'><a href='https://rimstone-lang.com' style='border-bottom:0px'><img src='https://rimstone-lang.com/rimstone.png' style='width:180px;height:auto'/></a></div><div class='vhub' style='margin-top:10px;'>Cache as a web service</div><hr/><br/>
This example shows Apache as the front-end (or "reverse proxy") for <a href='https://rimstone-lang.com/article-tree.html'>article-tree</a> - it's assumed you've completed it first. Three steps to setting up Apache quickly:<br/>
<ol><li><span style="font-weight:bold;">Enable FastCGI proxy</span> used to communicate with RimStone services - this is one time only:<br/>
<ul><li>If you use Ubuntu and similar:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_404' class=notranslate>
sudo a2enmod proxy
sudo a2enmod proxy_fcgi</pre>
<span id=rimstone_copied_404 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_404' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_404, code_404, rimstone_copied_404)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li><li>If you use Fedora and similar:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_406' class=notranslate>
sudo vi /etc/httpd/conf/httpd.conf</pre>
<span id=rimstone_copied_406 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_406' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_406, code_406, rimstone_copied_406)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
and if you use OpenSUSE:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_408' class=notranslate>
sudo vi /etc/httpd/conf/httpd.conf</pre>
<span id=rimstone_copied_408 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_408' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_408, code_408, rimstone_copied_408)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
Add the following at the end of httpd.conf:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_410' class=notranslate>
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so</pre>
<span id=rimstone_copied_410 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_410' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_410, code_410, rimstone_copied_410)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li></ul>
</li><li><span style="font-weight:bold;">Edit Apache configuration file:</span><br/>
<ul><li>If you use Debian (such as Ubuntu):<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_411' class=notranslate>
sudo vi /etc/apache2/apache2.conf</pre>
<span id=rimstone_copied_411 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_411' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_411, code_411, rimstone_copied_411)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li>
<li>If you use Fedora (such as RedHat), Archlinux:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_412' class=notranslate>
sudo vi /etc/httpd/conf/httpd.conf</pre>
<span id=rimstone_copied_412 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_412' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_412, code_412, rimstone_copied_412)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li>
<li>If you use OpenSUSE:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_413' class=notranslate>
sudo vi /etc/apache2/httpd.conf</pre>
<span id=rimstone_copied_413 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_413' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_413, code_413, rimstone_copied_413)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li></ul>
Add this to the end of the configuration file - note "tree" is the application name you created in the above example (replace "your-user" with your OS user name):<br/>
<div class='ncode' style='position:relative;padding-right:16px;'>
<pre id='code_403' class=notranslate>
ProxyPass "/tree/" unix:///home/your-user/.rimstone/apps/tree/sock/.sock|fcgi://localhost/tree</pre>
<span id=rimstone_copied_403 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_403' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_403, code_403, rimstone_copied_403)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li><li><span style="font-weight:bold;">Restart Apache</span>. <br/>
<ul><li>On Debian systems (like Ubuntu) or OpenSUSE:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_414' class=notranslate>
sudo systemctl restart apache2</pre>
<span id=rimstone_copied_414 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_414' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_414, code_414, rimstone_copied_414)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li><li>On Fedora systems (like RedHat) and Arch Linux:<br/>
<div class="shcode" style='position:relative;padding-right:16px;'>
<pre id='code_415' class=notranslate>
sudo systemctl restart httpd</pre>
<span id=rimstone_copied_415 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_415' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_415, code_415, rimstone_copied_415)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
</li></ul>
</li></ol><span style="font-weight:bold;">- Test web service</span><br/>
<br/>
Now you can call your web service, from the web. In this case it's probably a local server (127.0.0.1) if you're doing this on your own computer. The URLs would be, for example to add, query and delete a key/value pair:<br/>
<div class='ncode' style='position:relative;padding-right:16px;'>
<pre id='code_405' class=notranslate>
http://127.0.0.1/tree/srv/op=add/key=1/data=d_1</pre>
<span id=rimstone_copied_405 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_405' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_405, code_405, rimstone_copied_405)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
<div class='ncode' style='position:relative;padding-right:16px;'>
<pre id='code_407' class=notranslate>
http://127.0.0.1/tree/srv/op=query/key=1</pre>
<span id=rimstone_copied_407 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_407' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_407, code_407, rimstone_copied_407)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
<div class='ncode' style='position:relative;padding-right:16px;'>
<pre id='code_409' class=notranslate>
http://127.0.0.1/tree/srv/op=delete/key=1</pre>
<span id=rimstone_copied_409 style='position:absolute;right:-14px;top:-30px; cursor: pointer;visibility:hidden;background:white;'>Copied!</span>
<textarea id='rimstonet_409' style='position: absolute;left: -500%;'></textarea>
<img src='https://rimstone-lang.com/rimstone-copy-small-1.png' id='rimstoneb' onclick='rim_copy(rimstonet_409, code_409, rimstone_copied_409)' style='position:absolute;right:0;top:0; cursor: pointer;opacity:0.5;'/>
</div><br/>
Note the URL <a href='https://rimstone-lang.com/request.html'>request</a> structure: first comes the application path ("/tree") followed by request path ("/srv") followed by URL parameters (such as "/op=add/key=1/data=d_1"). The result in web browser are messages informing you that the key was added, queried or deleted.<br/>
<!--ENDVDOC90-->
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<hr/>
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