1 files changed, 51 insertions, 0 deletions

diff --git a/Blog/Services/BrpService.cs b/Blog/Services/BrpService.cs
new file mode 100644
index 0000000..e2e23c0
--- /dev/null
+++ b/Blog/Services/BrpService.cs
@@ -0,0 +1,51 @@
+using System.Text.Json;
+using Blog.Models;
+using Microsoft.Extensions.Caching.Hybrid;
+
+namespace Blog.Services;
+
+public class BrpService(HybridCache cache, IHttpClientFactory httpClientFactory)
+{
+    public async Task<BRPEntry[]> GetBrpEntriesAsync(CancellationToken cancellationToken = default)
+    {
+        return await cache.GetOrCreateAsync(
+            "brp",
+            async cancel =>
+            {
+                await using FileStream filestream = File.Open("Resources/test-data.json", FileMode.Open);
+                var entries = await JsonSerializer.DeserializeAsync<BRPEntry[]>(filestream, cancellationToken: cancel)
+                    .ConfigureAwait(false);
+                return entries ?? [];
+            },
+            cancellationToken: cancellationToken)
+            .ConfigureAwait(false);
+    }
+
+    public async Task<JsonDocument> GetBrpEntryAsync(string bsn, CancellationToken cancellationToken = default)
+    {
+        return await cache.GetOrCreateAsync(
+                $"brp/{bsn}",
+                bsn,
+                async (state, cancel) => await FetchBrpEntryAsync(state, cancel),
+                cancellationToken: cancellationToken)
+            .ConfigureAwait(false);
+    }
+
+    private async Task<JsonDocument> FetchBrpEntryAsync(string bsn, CancellationToken cancellationToken)
+    {
+        var client = httpClientFactory.CreateClient("brp");
+        var response = await client.PostAsJsonAsync(
+                "https://brp.bes.is/haalcentraal/api/brp/personen", 
+                new
+                {
+                    type = "RaadpleegMetBurgerservicenummer",
+                    burgerservicenummer = new[] { bsn },
+                    fields = new[] {"aNummer","adressering","burgerservicenummer","datumEersteInschrijvingGBA","datumInschrijvingInGemeente","europeesKiesrecht","geboorte","gemeenteVanInschrijving","geslacht","gezag","immigratie","indicatieCurateleRegister","kinderen","leeftijd","naam","nationaliteiten","ouders","overlijden","partners","uitsluitingKiesrecht","verblijfplaats","verblijfstitel","verblijfplaatsBinnenland","adresseringBinnenland"},
+                },
+                cancellationToken)
+            .ConfigureAwait(false);
+
+        await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
+        return await JsonDocument.ParseAsync(stream, cancellationToken: cancellationToken).ConfigureAwait(false);
+    }
+}
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