feat: Implemento completamente el POST de facturas , usando un objeto anonimo para la request, y devuelvo el id creado.

DoliMiddlewareApi/Controllers/InvoicesController.cs

@@ -1,5 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 using DoliMiddlewareApi.Dtos;
+using DoliMiddlewareApi.Dtos.command;
 using DoliMiddlewareApi.Services;
 using Microsoft.AspNetCore.Mvc;
 
@@ -39,4 +40,14 @@ public class InvoicesController : ControllerBase
         var invoice = await _invoiceService.GetInvoiceAsync(id);
         return Ok(invoice);
     }
+
+    [HttpPost]
+    [ProducesResponseType(typeof(int), StatusCodes.Status201Created)] // Devuelve el ID creado
+    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status400BadRequest)]
+    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status500InternalServerError)]
+    public async Task<ActionResult<int>> CreateInvoice([FromBody] CreateInvoiceDto createInvoiceDto)
+    {
+        var invoiceId= await _invoiceService.CreateInvoiceAsync(createInvoiceDto);
+        return CreatedAtAction(nameof(GetInvoice), new { id = invoiceId }, invoiceId);
+    }
 }

DoliMiddlewareApi/Dtos/command/CreateInvoiceDto.cs

@@ -18,6 +18,8 @@ public class CreateInvoiceDto
     public string? NotePublic { get; set; }
     public string? NotePrivate { get; set; }
     
+    public string Status { get; set; } = "draft";
+    
     [Required]
     [MinLength(1)]
     public List<CreateInvoiceLineDto> Lines { get; set; } = new();

DoliMiddlewareApi/Services/Clients/DolibarrApiClient.cs

@@ -33,6 +33,15 @@ public class DolibarrApiClient
                    $"Failed to deserialize list response from Dolibarr for endpoint '{endpoint}'");
     }
     
+    public async Task<string> PostAsync(string endpoint, object requestBody)
+    {
+        var response = await _httpClient.PostAsJsonAsync(endpoint, requestBody);
+        await EnsureSuccessOrThrowAsync(response, endpoint);
+
+        // porque devuelve el id como response
+        return await response.Content.ReadAsStringAsync();
+    }
+
     
     
     

DoliMiddlewareApi/Services/InvoiceService.cs

@@ -1,4 +1,6 @@
+using System.Globalization;
 using DoliMiddlewareApi.Dtos;
+using DoliMiddlewareApi.Dtos.command;
 using DoliMiddlewareApi.Dtos.Dolibarr;
 using DoliMiddlewareApi.Mappers;
 using DoliMiddlewareApi.Services.Clients;
@@ -36,4 +38,32 @@ public class InvoiceService
         var dataList = await _apiClient.GetCollectionAsync<InvoiceResponse>(endpoint);
         return dataList.Select(InvoiceMapper.MapToInvoiceDto).ToList();
     }
+
+    public async Task<int> CreateInvoiceAsync(CreateInvoiceDto dto)
+    {
+        var requestBody = new
+        {
+            socid = dto.ClientId.ToString(),
+            type = "0",
+            statut = dto.Status == "unpaid" ? "1" : "0",
+            date = ((DateTimeOffset)dto.Date).ToUnixTimeSeconds().ToString(),
+            date_lim_reglement = dto.ExpireDate.HasValue 
+                ? ((DateTimeOffset)dto.ExpireDate.Value).ToUnixTimeSeconds().ToString() 
+                : null,
+            @ref = dto.Reference,
+            note_public = dto.NotePublic,
+            note_private = dto.NotePrivate,
+            lines = dto.Lines.Select(line => new
+            {
+                desc = line.Description,
+                qty = line.Quantity.ToString(CultureInfo.InvariantCulture),
+                subprice = line.UnitPrice.ToString(CultureInfo.InvariantCulture),
+                tva_tx = line.TaxRate.ToString(CultureInfo.InvariantCulture)
+            }).ToArray()
+        };
+
+        var responseBody = await _apiClient.PostAsync("invoices", requestBody);
+        
+        return int.Parse(responseBody);
+    }
 }