Extracting the status code and response time from a single log line using a simple pattern.

ID: 1388

See: Project: Extracting and Aggregating Metrics from Server Logs 
				
					using uCalcSoftware;

var uc = new uCalc();
using (var t = new uCalc.Transformer()) {
   string logLine = """
2024-10-26 10:00:05 INFO 192.168.1.10 "GET /api/users HTTP/1.1" 200 15ms
""";

   // Define a pattern to capture the status and time
   string pattern = "{@String:request} {@Number:status} {@Number:time}ms";

   // The replacement string formats the captured data for display
   // {request} or {request(1)} would return the string without surrounding quotes
   // {request(0)} returns the string with surrounding quotes
   string replacement = "Request: {request(0)}, Status: {status}, Time: {time}ms";

   t.FromTo(pattern, replacement);

   // Use Filter() to extract only the transformed match
   Console.WriteLine(t.Transform(logLine).Matches);
}
				
			
Request: "GET /api/users HTTP/1.1", Status: 200, Time: 15ms
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   {
      uCalc::Transformer t;
      t.Owned(); // Causes t to be released when it goes out of scope
      string logLine = R"(2024-10-26 10:00:05 INFO 192.168.1.10 "GET /api/users HTTP/1.1" 200 15ms)";

      // Define a pattern to capture the status and time
      string pattern = "{@String:request} {@Number:status} {@Number:time}ms";

      // The replacement string formats the captured data for display
      // {request} or {request(1)} would return the string without surrounding quotes
      // {request(0)} returns the string with surrounding quotes
      string replacement = "Request: {request(0)}, Status: {status}, Time: {time}ms";

      t.FromTo(pattern, replacement);

      // Use Filter() to extract only the transformed match
      cout << t.Transform(logLine).Matches() << endl;
   }
}
				
			
Request: "GET /api/users HTTP/1.1", Status: 200, Time: 15ms
Explore 600+ other examples
				
					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      Using t As New uCalc.Transformer()
         Dim logLine As String = "2024-10-26 10:00:05 INFO 192.168.1.10 ""GET /api/users HTTP/1.1"" 200 15ms"
         
         '// Define a pattern to capture the status and time
         Dim pattern As String = "{@String:request} {@Number:status} {@Number:time}ms"
         
         '// The replacement string formats the captured data for display
         '// {request} or {request(1)} would return the string without surrounding quotes
         '// {request(0)} returns the string with surrounding quotes
         Dim replacement As String = "Request: {request(0)}, Status: {status}, Time: {time}ms"
         
         t.FromTo(pattern, replacement)
         
         '// Use Filter() to extract only the transformed match
         Console.WriteLine(t.Transform(logLine).Matches)
      End Using
   End Sub
End Module
				
			
Request: "GET /api/users HTTP/1.1", Status: 200, Time: 15ms
Explore 600+ other examples