Created
August 1, 2017 19:44
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Prettify structured logs in the browser
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <link rel="stylesheet" type="text/css" href="style.css"> | |
| </head> | |
| <body> | |
| <div> | |
| <p id="logs" class="log"></p> | |
| </div> | |
| </body> | |
| </html> |
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| function addStructuredLog(logJSON) { | |
| var log = JSON.parse(logJSON); | |
| var logDate = new Date(log.time); | |
| var msg = log.msg; | |
| var level = log.level; | |
| var levelClasses = { | |
| 'debug': 'level-debug', | |
| 'info': 'level-info', | |
| 'warn': 'level-warning', | |
| 'warning': 'level-warning', | |
| 'error': 'level-error', | |
| 'fatal': 'level-fatal', | |
| 'panic': 'level-fatal' | |
| } | |
| var levelClass = 'level-default'; | |
| if(level in levelClasses) { | |
| levelClass = levelClasses[level]; | |
| } | |
| delete log.level; | |
| delete log.time; | |
| delete log.msg; | |
| var kv = ""; | |
| for(k in log) { | |
| kv += `<span class="log-key">${k}</span><span>=${log[k]}\t</span>`; | |
| } | |
| $('#logs').prepend(`<span>${logDate} |</span><span class="${levelClass}">${level.toUpperCase().slice(0,4)}</span><span>| ${msg}\t</span>${kv}<br>`); | |
| } |
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| .log { | |
| color: black; | |
| font-family: Lucida Console, Courier, monospace; | |
| } | |
| .log-time { | |
| color: #636363; | |
| } | |
| .level-debug { | |
| color: #DD1C77; | |
| } | |
| .level-info { | |
| color: #14ACBE; | |
| } | |
| .level-warning { | |
| color: #FEB800; | |
| } | |
| .level-error { | |
| color: #FF0000; | |
| } | |
| .level-fatal { | |
| color: #FF0000; | |
| } | |
| .level-default { | |
| color: #DD1C77; | |
| } | |
| .log-key { | |
| font-weight: bold; | |
| } |
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