Javascript logging for Django.
Project description
Simple app for logging javascript console.log logs in Django.
Useful for catching javascript errors that are not logged by Django natively.
Quick start
Add “js_logger” to your INSTALLED_APPS setting like this:
INSTALLED_APPS = [ ... 'js_logger', ]Include the packages URLconf in your project urls.py like this:
path('js-logs/', include('js_logger.urls')),Add the required static file to your project by running manage.py collectstatic, or by manually adding the following code to <your-templates-folder>/js-logging/js-logging.html:
<script type="text/javascript"> function post(type, msg) { let headers; if (window.jsLoggerHeader) { headers = window.jsLoggerHeader; } else { headers = {'Content-Type': 'application/json'}; } fetch('/js-logs/', {method: 'POST', headers: headers, body: JSON.stringify({'type': type, 'msg': msg})}); } window.addEventListener('error', (event) => { post('error', event.message); }); console._overwritten = console.log; console.log = function (log) { post('info', log); console._overwritten(log); } </script>Include the template where you wish:
<head> ... {% include "js-logging/js-logging.html" %} ... </head>Add console.log as a logger in your logging configuration:
'console.log': { 'level': 'INFO', ... },
Note: This package will log all console.log calls in your frontend as INFO logs, and will log javascript errors as ERROR logs.
Custom headers
Since this package works by sending requests to your backend, you might find that it is necessary to add CSRF-tokens or other headers to make the requests work.
To set your own custom headers, simply define a variable, jsLoggerHeader that contains the headers you want to include, and this will be passed as the headers object in the requests made to the backend.
For example, in your template:
<head>
{% include "js-logging/js-logging.html" %}
</head>
...
<script>
...
let jsLoggerHeader = {'X-CSRFToken': csrftoken, 'Content-Type': 'application/json'}
...
</script>
path('js-logs/', include('js.urls')),
'console.log': {
'handlers': default_handler,
'level': 'DEBUG',
},
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