add list of ids to contingency info export endpoint

src/main/java/org/gridsuite/actions/server/ContingencyListController.java

@@ -111,6 +111,16 @@ public ResponseEntity<List<ContingencyInfos>> exportContingencyInfosList(@PathVa
         return ResponseEntity.ok().body(service.exportContingencyInfosList(id, networkUuid, variantId));
     }
 
+    @GetMapping(value = "/contingency-lists/contingency-infos/export", produces = MediaType.APPLICATION_JSON_VALUE)
+    @Operation(summary = "Evaluate and export a contingency infos list to JSON format")
+    @ApiResponses(value = {@ApiResponse(responseCode = "200", description = "The contingency list in JSON format"),
+        @ApiResponse(responseCode = "404", description = "The contingency list does not exists")})
+    public ResponseEntity<List<ContingencyInfos>> exportContingencyInfosList(@RequestParam(value = "networkUuid", required = false) UUID networkUuid,
+                                                                             @RequestParam(value = "variantId", required = false) String variantId,
+                                                                             @RequestParam(value = "ids", required = true) List<UUID> ids) {
+        return ResponseEntity.ok().body(service.exportContingencyInfosList(ids, networkUuid, variantId));
+    }
+
     @PostMapping(value = "/script-contingency-lists", consumes = MediaType.APPLICATION_JSON_VALUE)
     @Operation(summary = "Create a script contingency list")
     @ApiResponses(value = {@ApiResponse(responseCode = "200", description = "The script contingency list have been created successfully")})

src/main/java/org/gridsuite/actions/server/ContingencyListService.java

@@ -173,6 +173,12 @@ public List<ContingencyInfos> exportContingencyInfosList(UUID id, UUID networkUu
         return evaluateContingencyList(findContingencyList(id, network), network);
     }
 
+    @Transactional(readOnly = true)
+    public List<ContingencyInfos> exportContingencyInfosList(List<UUID> ids, UUID networkUuid, String variantId) {
+        Network network = getNetworkFromUuid(networkUuid, variantId);
+        return ids.stream().map(id -> evaluateContingencyList(findContingencyList(id, network), network)).flatMap(Collection::stream).toList();
+    }
+
     private PersistentContingencyList findContingencyList(UUID id, Network network) {
         Objects.requireNonNull(id);
         return getAnyContingencyList(id, network)

src/test/java/org/gridsuite/actions/server/ContingencyListControllerTest.java

@@ -12,6 +12,7 @@
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import com.powsybl.contingency.Contingency;
+import com.powsybl.contingency.GeneratorContingency;
 import com.powsybl.contingency.LineContingency;
 import com.powsybl.contingency.contingency.list.IdentifierContingencyList;
 import com.powsybl.iidm.network.Terminal;
@@ -788,6 +789,45 @@ private void testExportContingencies(String content, String expectedContent, UUI
                 .andExpect(status().isOk());
     }
 
+    @Test
+    public void testExportMultiContingenciesInfo() throws Exception {
+        Set<String> noCountries = Collections.emptySet();
+        String lineForm = genFormContingencyList(EquipmentType.LINE, -1., EQUALITY, noCountries);
+        String genForm = genFormContingencyList(EquipmentType.GENERATOR, 100., LESS_THAN, noCountries);
+
+        List<UUID> contingencies = new ArrayList<>();
+        contingencies.add(addNewFormContingencyList(lineForm));
+        contingencies.add(addNewFormContingencyList(genForm));
+
+        StringBuilder urlBuilder = new StringBuilder();
+        urlBuilder.append("/").append(VERSION).append("/contingency-lists/contingency-infos/export");
+        urlBuilder.append("?networkUuid=").append(NETWORK_UUID);
+        urlBuilder.append("&variantId=").append(VARIANT_ID_1);
+
+        contingencies.forEach(id -> urlBuilder.append("&").append("ids").append("=").append(id));
+
+        ContingencyInfos expectedContingency1 = new ContingencyInfos("NHV1_NHV2_1", new Contingency("NHV1_NHV2_1", null, List.of(new LineContingency("NHV1_NHV2_1"))), null, Set.of());
+        ContingencyInfos expectedContingency2 = new ContingencyInfos("NHV1_NHV2_2", new Contingency("NHV1_NHV2_2", null, List.of(new LineContingency("NHV1_NHV2_2"))), null, Set.of());
+        ContingencyInfos expectedContingency3 = new ContingencyInfos("GEN", new Contingency("GEN", null, List.of(new GeneratorContingency("GEN"))), null, Set.of());
+
+        mvc.perform(get(urlBuilder.toString())
+                        .contentType(APPLICATION_JSON))
+                .andExpect(status().isOk())
+                .andExpect(content().contentTypeCompatibleWith(APPLICATION_JSON))
+                .andExpect(content().json(objectMapper.writeValueAsString(List.of(expectedContingency1, expectedContingency2, expectedContingency3))));
+        // delete data
+        contingencies.forEach(id -> {
+            try {
+                mvc.perform(delete("/" + VERSION + "/contingency-lists/" + id.toString()))
+                    .andExpect(status().isOk());
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        );
+
+    }
+
     @Test
     public void testExportContingenciesInfos() throws Exception {
         ScriptContingencyList scriptContingencyList = new ScriptContingencyList("contingency('NHV1_NHV2_1') {\n" +