Implemented GetIndicatorByIdEndpoint

PostFundManagement.Api/Endpoints/Evidence/GetIndicatorByIdEndpoint.cs

@@ -0,0 +1,32 @@
+using PostFundManagement.Application.Extensions;
+using PostFundManagement.Application.Services.Evidence;
+using PostFundManagement.Domain.Abstractions;
+using PostFundManagement.Domain.Extensions;
+using PostFundManagement.Domain.Models;
+using PostFundManagement.Domain.Security;
+
+namespace PostFundManagement.Api.Endpoints.Evidence;
+
+[ApiVersionTarget(1)]
+public sealed class GetIndicatorByIdEndpoint : IEndpoint
+{
+    public void Map(IEndpointRouteBuilder builder)
+    {
+        builder.MapGet("api/evidence/indicators/{indicatorId}", async (string indicatorId, EvidenceService service, 
+            CancellationToken cancellationToken = default) =>
+        {
+            var result = await service.GetIndicatorAsync(indicatorId, cancellationToken);
+
+            return result.IsSuccess
+                ? Results.Ok(result.Value)
+                : Results.NotFound();
+        })
+        .WithDescription("Get a specific indicator.")
+        .WithName(typeof(GetIndicatorByIdEndpoint).ToEndpointName())
+        .MapToApiVersion(new ApiVersion(1))
+        .Produces<Indicator>(StatusCodes.Status200OK)        
+        .Produces(StatusCodes.Status404NotFound)
+        .Produces(StatusCodes.Status401Unauthorized)
+        .WithTags(EndpointTags.Evidence);
+    }
+}

PostFundManagement.Application/Services/Evidence/EvidenceService.cs

@@ -230,4 +230,27 @@ public sealed class EvidenceService(IDbContextFactory<ApplicationDbContext> cont
             return Result.Fail(new Error(ex.Message).CausedBy(ex));
         }
     }
+
+    public async Task<Result<Indicator>> GetIndicatorAsync(string indicatorId, CancellationToken cancellationToken)
+    {
+        try
+        {
+            var decodeResult = hashService.DecodeLongIdHash(indicatorId);
+
+            if (decodeResult.IsFailed)
+                return Result.Fail(decodeResult.Errors);
+
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var indicator = await context.Indicators.AsNoTracking().FirstOrDefaultAsync(i => i.Id == decodeResult.Value, cancellationToken);
+
+            return indicator is not null
+                ? Result.Ok(indicator.Map())
+                : Result.Fail("Failed to find specific indicator.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
 }