Small Logging Server using Node and Docker

Define Data Model for Logging

You can add multiple schemas for the logging data by adding a custom file model.<yourmodel>.jsonto the models directory.

{
    "eventName": "Name",
    "timestamp": 123,
    "eventId": 1
}

Available Routes on the Server

• POST /log/:schema - post a log to the server for a logging schema (protected by access token)
• GET /display/:schema - display the current logging data for a logging schema
• GET /schema/:schema - display the selected schema for JSON logs
• GET /export/:schema - export data to a CSV file for a logging schema

Use Access Token to Log Data

See: express-access-token

Test Logging via Terminal

curl -X POST -H "Authorization: Bearer <your_token>" -H "Content-Type: application/json" -d '{"eventName": "This is another test log message", "timestamp": "223123"}' http://localhost:3000/log/config 

Angular Example

import { HttpClient, HttpHeaders, HttpErrorResponse } from '@angular/common/http';
import { isDevMode } from '@angular/core';
import { take } from 'rxjs';

export class Logging {
  constructor(public http: HttpClient) {}

  sendData(data: any) { // data must be flat JSON object without arrays
    const headers = new HttpHeaders({
      'Content-Type': 'application/json',
      'Accept': 'application/json',
      'Authorization': 'Bearer <your_token>'
    });
    const url = isDevMode()
      ? 'http://<local_logging_server>:<port>/log/<your_schema>'
      : 'http://<production_logging_server>:<port>/log/<your_schema>';
    this.http
      .post(url, data, { headers: headers })
      .pipe(take(1))
      .subscribe({
        complete: () => { console.log('Logging Success'); },
        error: (err: HttpErrorResponse) => {
          if (err.error instanceof Error) {
              console.log('Client-side error occured.');
          } else {
              console.log('Server-side error occured.');
              console.log(err.error);
          }
        }
      });
  }
}

Development

Build and run with docker-compose and shut down node container, run app locally from development environenmt using npm start.

Deploy Application using Docker

git clone https://github.com/visualengineers/smallloggingserver-node.git
ENV="production" ACCESS_TOKEN="your_token" docker compose up -d --build

For Powershell use:

$env:ACCESS_TOKEN='123'
$env:ENV='production'
docker-compose up -d --build

Enter running MongoDB container to access and delete data

Run Mongo shell in your container:

docker exec -it <container_id> mongosh

Query your data in mongo shell:

show dbs
use eventLogs
show tables
db.yourschema.find()
db['<yourschema>'].find()
db.yourschema.deleteMany({})
exit

To reset and delete all schemas do

use eventLogs
db.dropDatabase();