{"type":"rich","version":"1.0","provider_name":"phorkie","provider_url":"https:\/\/p.cweiske.de\/","title":"php + guzzle 7: Retry API calls on \"502 Bad Gateway\" server errors","author_name":"Christian Weiske","cache_age":86400,"width":900,"height":900,"html":"<!-- embedding all files of https:\/\/p.cweiske.de\/920 -->\n<link rel=\"stylesheet\" href=\"https:\/\/p.cweiske.de\/css\/embed.css\"\/>\n<div class=\"phork\" id=\"920\">\n    <div class=\"phork-file\">\n <div class=\"phork-content\">\n  <style type=\"text\/css\">\/**\n * GeSHi (C) 2004 - 2007 Nigel McNie, 2007 - 2014 Benny Baumann\n * (http:\/\/qbnz.com\/highlighter\/ and http:\/\/geshi.org\/)\n *\/\n.php .de1, .php .de2 {font: normal normal 1em\/1.2em monospace; margin:0; padding:0; background:none; vertical-align:top;}\n.php  {font-family:monospace;}\n.php .imp {font-weight: bold; color: red;}\n.php li, .php .li1 {color: #DDD;}\n.php .ln {width:1px;text-align:right;margin:0;padding:0 2px;vertical-align:top;}\n.php .kw1 {color: #b1b100;}\n.php .kw2 {color: #000000; 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}\n<\/style><div class=\"code\"><table class=\"php\"><tbody><tr class=\"li1\"><td class=\"ln\"><pre class=\"de1\">1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24\n25\n26\n27\n28\n29\n30\n31\n32\n33\n34\n35\n36\n37\n38\n39\n40\n41\n42\n<\/pre><\/td><td class=\"de1\"><pre class=\"de1\"><span class=\"kw2\">class<\/span> DataSync\n<span class=\"br0\">&#123;<\/span>\n&#160; &#160; <span class=\"kw2\">function<\/span> sync<span class=\"br0\">&#40;<\/span><span class=\"br0\">&#41;<\/span>\n&#160; &#160; <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"co1\">\/\/ [...]<\/span>\n&#160; &#160; &#160; &#160; <span class=\"re0\">$details<\/span> <span class=\"sy0\">=<\/span> <span class=\"re0\">$this<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">retryOnApiFailure<\/span><span class=\"br0\">&#40;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw2\">function<\/span> <span class=\"br0\">&#40;<\/span><span class=\"br0\">&#41;<\/span> <span class=\"kw2\">use<\/span> <span class=\"br0\">&#40;<\/span><span class=\"re0\">$userId<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw1\">return<\/span> <span class=\"re0\">$this<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">repository<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">findOneById<\/span><span class=\"br0\">&#40;<\/span><span class=\"re0\">$userId<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"co1\">\/\/ [...]<\/span>\n&#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160;\n&#160; &#160; <span class=\"co4\">\/**<\/span>\n<span class=\"co4\">&#160; &#160; &#160;* Retry API calls when we get a &quot;502 Bad Gateway&quot; response 3 times<\/span>\n<span class=\"co4\">&#160; &#160; &#160;*\/<\/span>\n&#160; &#160; <span class=\"kw2\">protected<\/span> <span class=\"kw2\">function<\/span> retryOnApiFailure<span class=\"br0\">&#40;<\/span><span class=\"re0\">$functionToCall<\/span><span class=\"sy0\">,<\/span> int <span class=\"re0\">$try<\/span> <span class=\"sy0\">=<\/span> <span class=\"nu0\">1<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">:<\/span> mixed\n&#160; &#160; <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"re0\">$v<\/span> &#160;<span class=\"sy0\">=<\/span> OutputInterface<span class=\"sy0\">::<\/span><span class=\"me2\">VERBOSITY_VERBOSE<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"kw1\">if<\/span> <span class=\"br0\">&#40;<\/span><span class=\"re0\">$try<\/span> <span class=\"sy0\">===<\/span> <span class=\"nu0\">2<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"re0\">$this<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">io<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">writeln<\/span><span class=\"br0\">&#40;<\/span><span class=\"st_h\">' retrying API call'<\/span><span class=\"sy0\">,<\/span> <span class=\"re0\">$v<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span> <span class=\"kw1\">elseif<\/span> <span class=\"br0\">&#40;<\/span><span class=\"re0\">$try<\/span> <span class=\"sy0\">===<\/span> <span class=\"nu0\">3<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"re0\">$this<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">io<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">writeln<\/span><span class=\"br0\">&#40;<\/span><span class=\"st_h\">' retrying API call a second time in 10s'<\/span><span class=\"sy0\">,<\/span> <span class=\"re0\">$v<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <a href=\"http:\/\/www.php.net\/sleep\"><span class=\"kw3\">sleep<\/span><\/a><span class=\"br0\">&#40;<\/span><span class=\"nu0\">10<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span> <span class=\"kw1\">elseif<\/span> <span class=\"br0\">&#40;<\/span><span class=\"re0\">$try<\/span> <span class=\"sy0\">===<\/span> <span class=\"nu0\">4<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"re0\">$this<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">io<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">writeln<\/span><span class=\"br0\">&#40;<\/span><span class=\"st_h\">' retrying API call a third time in 30s'<\/span><span class=\"sy0\">,<\/span> <span class=\"re0\">$v<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <a href=\"http:\/\/www.php.net\/sleep\"><span class=\"kw3\">sleep<\/span><\/a><span class=\"br0\">&#40;<\/span><span class=\"nu0\">30<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160;\n&#160; &#160; &#160; &#160; try <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw1\">return<\/span> <span class=\"re0\">$functionToCall<\/span><span class=\"br0\">&#40;<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160;\n&#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span> catch <span class=\"br0\">&#40;<\/span>\\GuzzleHttp\\Exception\\ServerException <span class=\"re0\">$e<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw1\">if<\/span> <span class=\"br0\">&#40;<\/span><span class=\"re0\">$e<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">getCode<\/span><span class=\"br0\">&#40;<\/span><span class=\"br0\">&#41;<\/span> <span class=\"sy0\">===<\/span> <span class=\"nu0\">502<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw1\">if<\/span> <span class=\"br0\">&#40;<\/span><span class=\"re0\">$try<\/span> <span class=\"sy0\">&gt;=<\/span> <span class=\"nu0\">4<\/span><span class=\"br0\">&#41;<\/span> <span class=\"br0\">&#123;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw1\">throw<\/span> <span class=\"re0\">$e<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; <span class=\"kw1\">return<\/span> <span class=\"re0\">$this<\/span><span class=\"sy0\">-&gt;<\/span><span class=\"me1\">retryOnApiFailure<\/span><span class=\"br0\">&#40;<\/span><span class=\"re0\">$functionToCall<\/span><span class=\"sy0\">,<\/span> <span class=\"re0\">$try<\/span> <span class=\"sy0\">+<\/span> <span class=\"nu0\">1<\/span><span class=\"br0\">&#41;<\/span><span class=\"sy0\">;<\/span>\n&#160; &#160; &#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160; &#160; &#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160; &#160; <span class=\"br0\">&#125;<\/span>\n&#160;<\/pre><\/td><\/tr><\/tbody><\/table><\/div>\n <\/div>\n <div class=\"phork-meta\">\n  <a href=\"https:\/\/p.cweiske.de\/920\/rev-raw\/c12de3faec8d5b25741587f31ed744627c9d949c\/retry.php\" style=\"float: right\">view raw source<\/a>\n  <a href=\"https:\/\/p.cweiske.de\/920#retry.php\">retry.php<\/a>\n <\/div>\n<\/div>\n<\/div>\n"}