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65 lines
1.7 KiB
Markdown
65 lines
1.7 KiB
Markdown
# Logging
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Strapi relies on an extremely fast Node.js logger called Pino that includes a shell utility to pretty-print its log files. It provides great performances and doesn't slow down your app. The logger is accessible through the global variable `strapi.log` or the request's context `ctx.log` if enabled.
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```js
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// Folder.js controller
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const fs = require('fs');
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const path = require('path');
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module.exports = {
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/**
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* Retrieve app's folders.
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*
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* @return {Object|Array}
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*/
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findFolders: async (ctx) => {
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try {
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const folders = fs.readdirSync(path.resolve(process.cwd()));
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strapi.log.info(folders); // ctx.log.info(folders);
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ctx.send(folders);
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} catch (error) {
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strapi.log.fatal(error); // ctx.log.fatal(error);
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ctx.badImplementation(error.message);
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}
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}
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}
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```
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## Global logger configuration
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The global logger is configured by environment variables.
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- `STRAPI_LOG_LEVEL`: Can be fatal, error, warn, info, debug or trace.
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- `STRAPI_LOG_TIMESTAMP`: Can be true/false
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- `STRAPI_LOG_PRETTY_PRINT`: Can be true/false
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- `STRAPI_LOG_FORCE_COLOR`: Can be true/false
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## Request logging middleware
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To configure the request-logger middleware, you have to edit the following file `./config/environments/*/request.json`.
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```json
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{
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...
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"logger": {
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"level": "debug",
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"exposeInContext": true,
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"requests": true
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},
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...
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}
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```
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- `level`: defines the desired logging level (fatal, error, warn, info, debug, trace).
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- `exposeInContext`: allows access to the logger through the context.
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- `requests`: incoming HTTP requests will be logged.
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To find more details about the logger API, please refer to the [Pino documentation](http://getpino.io/#/).
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