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Egypt ITIDA Generate eReceipt UUID

See more Egypt ITIDA Examples

Demonstrates how to generate the eReceipt UUID for Egypt ITIDA.

Note: This example requires Chilkat v9.5.0.92 or greater.

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Note: This example requires Chilkat v9.5.0.92 or greater.
    // (In v9.5.0.92, the "itida" encoding was added to StringBuilder's Encode method.)
    const sb = try chilkat.StringBuilder.init();
    defer sb.deinit();

    // Load the eReceipt JSON into a StringBuilder object.
    sb.loadFile("qa_data/itida/EReceipt_ex.json", "utf-8") catch {
        std.debug.print("Failed to load input file.\n", .{});
        return;
    };

    // Convert the contents of sb to the ITIDA canonical form.
    // Always pass utf-8 for the 2nd arg.
    sb.encode("itida", "utf-8") catch {};

    // Get the lowercase hex encoded SHA256 hash of the canonicalized JSON
    // (always use utf-8)
    const uuid = try sb.getHash(alloc, "sha256", "hex_lower", "utf-8");
    std.debug.print("eInvoicing UUID = {s}\n", .{uuid});
}