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How To ▶ Loading jsnlog.js ▶ Script tag

Script tag

Load from free CDN

Jsnlog.min.js is hosted on cdnjs (world wide locations).

To load jsnlog.js from this CDN, use this script tag: 

<script crossorigin="anonymous" src="https://cdnjs.cloudflare.com/ajax/libs/jsnlog/2.30.0/jsnlog.min.js"></script>

Load from your own server

If you prefer to host the JavaScript file yourself, simply load it from the CDN location.

Assuming you stored jsnlog.min.js in a folder Scripts, you would wind up with a script tag such as this: 

>script src="/Scripts/jsnlog.min.js"<>/script<

Load from free CDN with fallback

If the CDN goes down, you will want your site to fallback automatically to the jsnlog.min.js file hosted on your own server.

Again assuming that you stored a copy of jsnlog.min.js in a folder Scripts on your server, this code will make that happen: 

<script crossorigin="anonymous" 
        src="https://cdnjs.cloudflare.com/ajax/libs/jsnlog/2.30.0/jsnlog.min.js"
        asp-fallback-src="~/Scripts/jsnlog.min.js"
        asp-fallback-test="window.JL">
</script>

Generated script tag

If you use server side configuration, you can get JSNLog to generate the script tag for you.

Firstly make sure to call JSNLog's jl-javascript-logger-definitions tag helper in your pages.

Then set the productionLibraryPath property. 

<jsnlog productionLibraryPath="https://cdnjs.cloudflare.com/ajax/libs/jsnlog/2.30.0/jsnlog.min.js">
</jsnlog>
// Use in Configure method in Startup class
        var jsnlogConfiguration = 
  new JsnlogConfiguration {
      productionLibraryPath="https://cdnjs.cloudflare.com/ajax/libs/jsnlog/2.30.0/jsnlog.min.js"
  };

This will cause the jl-javascript-logger-definitions tag helper to generate a script tag with the given url.

Documentation Menu

  1. Installation
  2. Getting Started
  3. Configuration
    1. On the client
    2. On the server
      1. JSNLog
      2. Logger
      3. AjaxAppender
      4. ConsoleAppender
  4. How To
    1. Adding request headers
    2. AJAX error handling
    3. Angular 2+ logging to the server
    4. AngularJs Error Handling
    5. Console log
    6. Content Security Policy (CSP)
    7. Setting the url to send logs to
    8. Logging cyclic references
    9. Demos and sample code
    10. Lost connection handling
    11. JavaScript Error Handling
    12. Javascript Try Catch
    13. Loading jsnlog.js
      1. AMD
      2. Browserify
      3. Bundles
      4. Free CDN
      5. CommonJS
      6. ES6
      7. Script tag
      8. SystemJS
    14. Log Message Batching
    15. Log Message Format
    16. Numeric Severities
    17. Obfuscated Script Errors
    18. Using Request Ids
    19. Structured JavaScript Logging
  5. jsnlogjs.js
    1. AjaxAppender Object
      1. sendBatch Method
      2. setOptions Method
    2. __jsnlog_configure function
    3. ConsoleAppender Object
      1. sendBatch Method
      2. setOptions Method
    4. Exception Object
    5. JL Namespace and Method
      1. createAjaxAppender Method
      2. createConsoleAppender Method
      3. getAllLevel Method
      4. getDebugLevel Method
      5. getErrorLevel Method
      6. getFatalLevel Method
      7. getInfoLevel Method
      8. getOffLevel Method
      9. getTraceLevel Method
      10. getWarnLevel Method
      11. JL Method
      12. setOptions Method
    6. Logger Object
      1. debug Method
      2. error Method
      3. fatal Method
      4. fatalException Method
      5. info Method
      6. log Method
      7. setOptions Method
      8. trace Method
      9. warn Method
  6. JavascriptLogging Class
    1. Configure Method
    2. OnLogging Event
    3. RequestId Method
    4. SetJsnlogConfiguration Method
  7. Tag Helpers
    1. jl-javascript-logger-definitions