🚀 First Implementation

Ready to write your very first query with JQL.Net? It's as easy as ordering pizza! 🍕 Whether you're a C# wizard, a VB.NET veteran, or an F# enthusiast, we've got a seat for you at the table. 🌟

JQL.Net supports two main ways to execute your queries. Let's check them out!

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📄 Our Sample Data

We'll use this transaction list for all our examples. Notice our lead developer, Fadhly Permata, is right at the top! 👨‍💻

[
  { "Id": 1, "CustomerName": "Fadhly Permata", "Category": "Elektronik", "Amount": 5000000 },
  { "Id": 2, "CustomerName": "Budi Santoso", "Category": "Elektronik", "Amount": 1500000 },
  { "Id": 3, "CustomerName": "Sari Wijaya", "Category": "Pakaian", "Amount": 200000 },
  { "Id": 4, "CustomerName": "Andi Pratama", "Category": "Elektronik", "Amount": 3000000 }
]

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🔷 C# Implementation 🎸

using JQL.Net;
using JQL.Net.Core;
using JQL.Net.Exceptions;

// --- Method 1: Object-Oriented Approach ---
try {
    var request = new JsonQueryRequest { 
        Select = "CustomerName, Amount", 
        From = jsonInput 
    };
    var result = JsonQueryEngine.Execute(request);
} catch (JsonQueryException ex) {
    // Handle query-specific errors
    Console.WriteLine($"Error: {ex.Message}");
}

// --- Method 2: SQL String Approach (The .Parse() Way) ---
try {
    var payload = new JsonQueryRequest {
        RawQuery = "SELECT t.CustomerName FROM $.Transactions AS t WHERE t.CustomerName == 'Fadhly Permata'",
        Data = myDataObject
    };
    var result = JsonQueryEngine.Execute(request: payload.Parse());
} catch (JsonQueryException ex) {
    // Handling error using JsonQueryException
    Console.WriteLine($"Error: {ex.Message}");
}

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🔷 VB.NET Implementation ☕

Imports JQL.Net
Imports JQL.Net.Core
Imports JQL.Net.Exceptions

' --- Method 1: Object-Oriented Approach ---
Try
    Dim request As New JsonQueryRequest With {
        .Select = "CustomerName, Amount",
        .From = jsonInput
    }
    Dim result = JsonQueryEngine.Execute(request)
Catch ex As JsonQueryException
    Console.WriteLine($"Error: {ex.Message}")
End Try

' --- Method 2: SQL String Approach (.Parse) ---
Try
    Dim payload As New JsonQueryRequest With {
        .RawQuery = "SELECT t.CustomerName FROM $.Transactions AS t WHERE t.CustomerName == 'Fadhly Permata'",
        .Data = myDataObject
    }
    Dim result = JsonQueryEngine.Execute(request:=payload.Parse())
Catch ex As JsonQueryException
    Console.WriteLine($"Error: {ex.Message}")
End Try

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🔷 F# Implementation 🧪

open JQL.Net
open JQL.Net.Core
open JQL.Net.Exceptions

// --- Method 1: Object-Oriented Approach ---
try
    let request = JsonQueryRequest(Select = "CustomerName", From = jsonInput)
    let result = JsonQueryEngine.Execute(request)
    ()
with
| :? JsonQueryException as ex -> printfn "Error: %s" ex.Message

// --- Method 2: SQL String Approach (.Parse) ---
try
    let payload = JsonQueryRequest(RawQuery = "SELECT t.CustomerName FROM $.Transactions AS t WHERE t.CustomerName == 'Fadhly Permata'", Data = myData)
    let result = JsonQueryEngine.Execute(request = payload.Parse())
    ()
with
| :? JsonQueryException as ex -> printfn "Error: %s" ex.Message

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💡 Which one should I choose?

• Object-Oriented: Best for static queries where you want full control over each property.
• SQL String: Perfect for dynamic queries, user-inputted strings, or if you just love the feel of pure SQL! 🪄

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🧭 What's Next?

Ready to give your output fields some custom names? It's time to learn about Aliases!

👉 Jump into Query with Alias to keep the momentum going!

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Questions? Feedback? Open an Issue and let's chat!