diff --git a/api/src/main/java/fr/gameovergne/api/controller/prestashop/PrestashopProxyController.java b/api/src/main/java/fr/gameovergne/api/controller/prestashop/PrestashopProxyController.java
index 24c7489..b7d68f9 100644
--- a/api/src/main/java/fr/gameovergne/api/controller/prestashop/PrestashopProxyController.java
+++ b/api/src/main/java/fr/gameovergne/api/controller/prestashop/PrestashopProxyController.java
@@ -16,30 +16,38 @@ public class PrestashopProxyController {
         this.prestashopClient = prestashopClient;
     }
 
-    /**
-     * Proxy GET sur /api/ps/** -> /api/** sur PrestaShop
-     * Exemple front :
-     *   /api/ps/categories?display=[id,name,active]&output_format=JSON
-     * deviendra côté Presta :
-     *   https://shop.gameovergne.fr/api/categories?display=[id,name,active]&output_format=JSON
-     */
+    private String extractPath(HttpServletRequest request) {
+        return request.getRequestURI().replaceFirst("^/api/ps", "");
+    }
+
+    // ---------- GET ----------
     @GetMapping("/**")
     public ResponseEntity<String> proxyGet(HttpServletRequest request) {
-        String fullPath = request.getRequestURI();     // ex: /api/ps/categories
-        String contextPath = request.getContextPath(); // souvent ""
-        String relative = fullPath.substring(contextPath.length()); // /api/ps/categories
+        String path = extractPath(request);
+        return ResponseEntity.ok(prestashopClient.get(path));
+    }
 
-        // On enlève le préfixe /api/ps => /categories
-        String path = relative.replaceFirst("^/api/ps", "");
+    // ---------- POST ----------
+    @PostMapping("/**")
+    public ResponseEntity<String> proxyPost(HttpServletRequest request, @RequestBody String xmlBody) {
+        String path = extractPath(request);
+        String body = prestashopClient.post(path, xmlBody);
+        return ResponseEntity.ok(body);
+    }
 
-        String query = request.getQueryString(); // ex: display=%5Bid,name,active%5D&output_format=JSON
+    // ---------- PUT ----------
+    @PutMapping("/**")
+    public ResponseEntity<String> proxyPut(HttpServletRequest request, @RequestBody String xmlBody) {
+        String path = extractPath(request);
+        String body = prestashopClient.put(path, xmlBody);
+        return ResponseEntity.ok(body);
+    }
 
-        String body = prestashopClient.get(path, query);
-
-        // On renvoie du JSON brut comme Presta, en HTTP 200
-        return ResponseEntity
-                .ok()
-                .contentType(MediaType.APPLICATION_JSON)
-                .body(body);
+    // ---------- DELETE ----------
+    @DeleteMapping("/**")
+    public ResponseEntity<Void> proxyDelete(HttpServletRequest request) {
+        String path = extractPath(request);
+        prestashopClient.delete(path);
+        return ResponseEntity.noContent().build();
     }
 }
\ No newline at end of file
diff --git a/api/src/main/java/fr/gameovergne/api/service/prestashop/PrestashopClient.java b/api/src/main/java/fr/gameovergne/api/service/prestashop/PrestashopClient.java
index 8a739e6..b357024 100644
--- a/api/src/main/java/fr/gameovergne/api/service/prestashop/PrestashopClient.java
+++ b/api/src/main/java/fr/gameovergne/api/service/prestashop/PrestashopClient.java
@@ -15,9 +15,8 @@ public class PrestashopClient {
     private static final Logger log = LoggerFactory.getLogger(PrestashopClient.class);
 
     private final RestTemplate restTemplate = new RestTemplate();
-
     private final String baseUrl;
-    private final String basicAuth; // base64 SANS le "Basic "
+    private final String basicAuth;
 
     public PrestashopClient(
             @Value("${prestashop.base-url}") String baseUrl,
@@ -27,46 +26,100 @@ public class PrestashopClient {
         this.basicAuth = basicAuth;
     }
 
-    /**
-     * Appel générique GET vers PrestaShop.
-     * On ignore complètement la query reçue du front et on force output_format=JSON.
-     */
-    public String get(String path, String ignoredQuery) {
-        UriComponentsBuilder builder = UriComponentsBuilder
+    private String buildUrl(String path) {
+        return UriComponentsBuilder
                 .fromHttpUrl(baseUrl)
                 .path("/api")
                 .path(path)
                 .queryParam("output_format", "JSON")
-                .queryParam("display", "full");
-
-        String url = builder.build(true).toUriString();
-
-        log.info("[PrestaShop] Appel URL = {}", url);
+                .queryParam("display", "full")
+                .build(true)
+                .toUriString();
+    }
 
+    private HttpHeaders buildHeaders() {
         HttpHeaders headers = new HttpHeaders();
         headers.set(HttpHeaders.AUTHORIZATION, "Basic " + basicAuth);
+        headers.setContentType(MediaType.APPLICATION_XML); // Presta exige XML pour POST/PUT
+        headers.setAccept(java.util.List.of(MediaType.APPLICATION_JSON));
+        return headers;
+    }
 
-        HttpEntity<Void> entity = new HttpEntity<>(headers);
+    // ========== GET ==========
+    public String get(String path) {
+        String url = buildUrl(path);
+        log.info("[PrestaShop] GET {}", url);
 
         try {
             ResponseEntity<String> response = restTemplate.exchange(
                     url,
                     HttpMethod.GET,
-                    entity,
+                    new HttpEntity<>(buildHeaders()),
                     String.class
             );
 
-            log.info("[PrestaShop] Réponse HTTP {} pour {}", response.getStatusCode(), url);
+            return response.getBody();
+        } catch (RestClientException e) {
+            log.error("[PrestaShop] Erreur GET {}", url, e);
+            throw new RuntimeException("Erreur GET PrestaShop", e);
+        }
+    }
 
-            if (!response.getStatusCode().is2xxSuccessful()) {
-                throw new RuntimeException("PrestaShop returned non-2xx status: "
-                        + response.getStatusCode() + " for URL " + url);
-            }
+    // ========== POST ==========
+    public String post(String path, String xmlBody) {
+        String url = buildUrl(path);
+        log.info("[PrestaShop] POST {}", url);
+
+        try {
+            ResponseEntity<String> response = restTemplate.exchange(
+                    url,
+                    HttpMethod.POST,
+                    new HttpEntity<>(xmlBody, buildHeaders()),
+                    String.class
+            );
 
             return response.getBody();
         } catch (RestClientException e) {
-            log.error("[PrestaShop] Erreur lors de l'appel à {}", url, e);
-            throw new RuntimeException("Erreur lors de l'appel à PrestaShop", e);
+            log.error("[PrestaShop] Erreur POST {}", url, e);
+            throw new RuntimeException("Erreur POST PrestaShop", e);
+        }
+    }
+
+    // ========== PUT ==========
+    public String put(String path, String xmlBody) {
+        String url = buildUrl(path);
+        log.info("[PrestaShop] PUT {}", url);
+
+        try {
+            ResponseEntity<String> response = restTemplate.exchange(
+                    url,
+                    HttpMethod.PUT,
+                    new HttpEntity<>(xmlBody, buildHeaders()),
+                    String.class
+            );
+
+            return response.getBody();
+        } catch (RestClientException e) {
+            log.error("[PrestaShop] Erreur PUT {}", url, e);
+            throw new RuntimeException("Erreur PUT PrestaShop", e);
+        }
+    }
+
+    // ========== DELETE ==========
+    public void delete(String path) {
+        String url = buildUrl(path);
+        log.info("[PrestaShop] DELETE {}", url);
+
+        try {
+            restTemplate.exchange(
+                    url,
+                    HttpMethod.DELETE,
+                    new HttpEntity<>(buildHeaders()),
+                    Void.class
+            );
+        } catch (RestClientException e) {
+            log.error("[PrestaShop] Erreur DELETE {}", url, e);
+            throw new RuntimeException("Erreur DELETE PrestaShop", e);
         }
     }
 }
\ No newline at end of file