Implment API layer for API publisher

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.extension.rest.api/src/main/java/io/entgra/device/mgt/core/apimgt/extension/rest/api/PublisherRESTAPIServices.java

@@ -37,7 +37,7 @@ public interface PublisherRESTAPIServices {
             throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     boolean addNewSharedScope(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, Scope scope)
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     boolean updateSharedScope(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, Scope scope)
             throws APIServicesException, BadRequestException, UnexpectedResponseException;
@@ -46,23 +46,23 @@ public interface PublisherRESTAPIServices {
             throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     JSONObject getApis(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo)
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     API createAPI(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, API api)
-    throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     boolean updateApi(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, API api)
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     boolean saveAsyncApiDefinition(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid, String asyncApiDefinition)
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     JSONObject getAllApiSpecificMediationPolicies(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, APIIdentifier apiIdentifier)
             throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
-    boolean addApiSpecificMediationPolicy (APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+    boolean addApiSpecificMediationPolicy(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
-                                           String uuid, Mediation mediation)
+                                          String uuid, Mediation mediation)
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     boolean updateApiSpecificMediationPolicyContent(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
                                                     String uuid, Mediation mediation)
@@ -70,19 +70,43 @@ public interface PublisherRESTAPIServices {
 
     boolean changeLifeCycleStatus(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
                                   String uuid, String action)
-        throws  APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
-    JSONObject getAPIRevision(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid)
+    JSONObject getAPIRevisions(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid,
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+                               String deploymentStatus)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
     JSONObject getAPIRevisionDeployment(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid)
             throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
-    APIRevision addAPIRevision (APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+    APIRevision addAPIRevision(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
-                                APIRevision apiRevision)
+                               APIRevision apiRevision)
-        throws  APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 
-    boolean deployAPIRevision (APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid,
+    boolean deployAPIRevision(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid,
-                               String apiRevisionId, List<APIRevisionDeployment> apiRevisionDeploymentList)
+                              String apiRevisionId, List<APIRevisionDeployment> apiRevisionDeploymentList)
-        throws APIServicesException, BadRequestException, UnexpectedResponseException;
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
+
+    abstract boolean undeployAPIRevisionDeployment(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                                   APIRevisionDeployment apiRevisionDeployment, String uuid)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
+
+    boolean deleteAPIRevision(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                              APIRevision apiRevision, String uuid)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
+
+    JSONObject getDocumentations(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, APIIdentifier apiIdentifier)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
+
+    boolean deleteDocumentations(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                 APIIdentifier apiIdentifier, String documentID)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
+
+    Documentation addDocumentation(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                         APIIdentifier apiIdentifier, Documentation documentation)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
+
+    boolean addDocumentationContent(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                    API api, String docId, String docContent)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException;
 }

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.extension.rest.api/src/main/java/io/entgra/device/mgt/core/apimgt/extension/rest/api/PublisherRESTAPIServicesImpl.java

@@ -139,7 +139,7 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
     public boolean addNewSharedScope(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, Scope scope)
             throws APIServicesException, BadRequestException, UnexpectedResponseException {
 
-        String addNewScope = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+        String addNewSharedScopeEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
                 + Constants.COLON + port + Constants.SCOPE_API_ENDPOINT + scope.getId();
 
         ScopeUtils scopeUtil = new ScopeUtils();
@@ -151,7 +151,7 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
 
         RequestBody requestBody = RequestBody.create(JSON, scopeString);
         Request request = new Request.Builder()
-                .url(addNewScope)
+                .url(addNewSharedScopeEndPoint)
                 .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
                         + accessTokenInfo.getAccess_token())
                 .post(requestBody)
@@ -167,7 +167,7 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
                         generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
                                 apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
                 //TODO: max attempt count
-                return updateSharedScope(apiApplicationKey, refreshedAccessToken, scope);
+                return addNewSharedScope(apiApplicationKey, refreshedAccessToken, scope);
             } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
                 String msg = "Bad Request, Invalid scope object";
                 log.error(msg);
@@ -552,7 +552,7 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
                         generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
                                 apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
                 //TODO: max attempt count
-                return addApiSpecificMediationPolicy(apiApplicationKey, refreshedAccessToken, uuid, mediation);
+                return updateApiSpecificMediationPolicyContent(apiApplicationKey, refreshedAccessToken, uuid, mediation);
             } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
                 String msg = "Bad Request, Invalid scope object";
                 log.error(msg);
@@ -614,14 +614,15 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
     }
 
     @Override
-    public JSONObject getAPIRevision(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid)
+    public JSONObject getAPIRevisions(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, String uuid,
-        throws APIServicesException, BadRequestException, UnexpectedResponseException {
+                                      String deploymentStatus)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
 
-        String getLatestRevisionUUIDEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+        String getAPIRevisionsEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
-                + Constants.COLON + port + Constants.API_ENDPOINT + uuid + "/revisions?query=deployed:true";
+                + Constants.COLON + port + Constants.API_ENDPOINT + uuid + "/revisions" + deploymentStatus;
 
         Request request = new Request.Builder()
-                .url(getLatestRevisionUUIDEndPoint)
+                .url(getAPIRevisionsEndPoint)
                 .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
                         + accessTokenInfo.getAccess_token())
                 .get()
@@ -638,7 +639,7 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
                         generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
                                 apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
                 //TODO: max attempt count
-                return getAPIRevision(apiApplicationKey, refreshedAccessToken, uuid);
+                return getAPIRevisions(apiApplicationKey, refreshedAccessToken, uuid, deploymentStatus);
             } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
                 String msg = "Bad Request, Invalid scope object";
                 log.error(msg);
@@ -784,4 +785,266 @@ public class PublisherRESTAPIServicesImpl implements PublisherRESTAPIServices {
             throw new APIServicesException(e);
         }
     }
+
+    @Override
+    public boolean undeployAPIRevisionDeployment(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                                 APIRevisionDeployment apiRevisionDeployment, String uuid)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
+
+        String apiRevisionEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+                + Constants.COLON + port + Constants.API_ENDPOINT + uuid + "/revisions/"
+                + apiRevisionDeployment.getRevisionUUID();
+
+        RequestBody requestBody = RequestBody.create(JSON, String.valueOf(apiRevisionDeployment));
+        Request request = new Request.Builder()
+                .url(apiRevisionEndPoint)
+                .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
+                        + accessTokenInfo.getAccess_token())
+                .post(requestBody)
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            if (HttpStatus.SC_CREATED == response.code()) {
+                return true;
+            } else if (HttpStatus.SC_UNAUTHORIZED == response.code()) {
+                APIApplicationServices apiApplicationServices = new APIApplicationServicesImpl();
+                AccessTokenInfo refreshedAccessToken = apiApplicationServices.
+                        generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
+                                apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
+                //TODO: max attempt count
+                return undeployAPIRevisionDeployment(apiApplicationKey, refreshedAccessToken, apiRevisionDeployment, uuid);
+            } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
+                String msg = "Bad Request, Invalid scope object";
+                log.error(msg);
+                throw new BadRequestException(msg);
+            } else {
+                String msg = "Response : " + response.code() + response.body();
+                throw new UnexpectedResponseException(msg);
+            }
+        } catch (IOException e) {
+            String msg = "Error occurred while processing the response";
+            log.error(msg, e);
+            throw new APIServicesException(e);
+        }
+    }
+
+    @Override
+    public boolean deleteAPIRevision(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                     APIRevision apiRevision, String uuid)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
+
+        String apiRevisionEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+                + Constants.COLON + port + Constants.API_ENDPOINT + uuid + "/revisions/"
+                + apiRevision.getRevisionUUID();
+
+        Request request = new Request.Builder()
+                .url(apiRevisionEndPoint)
+                .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
+                        + accessTokenInfo.getAccess_token())
+                .delete()
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            if (HttpStatus.SC_OK == response.code()) {
+                return true;
+            } else if (HttpStatus.SC_UNAUTHORIZED == response.code()) {
+                APIApplicationServices apiApplicationServices = new APIApplicationServicesImpl();
+                AccessTokenInfo refreshedAccessToken = apiApplicationServices.
+                        generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
+                                apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
+                //TODO: max attempt count
+                return deleteAPIRevision(apiApplicationKey, refreshedAccessToken, apiRevision, uuid);
+            } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
+                String msg = "Bad Request, Invalid scope object";
+                log.error(msg);
+                throw new BadRequestException(msg);
+            } else {
+                String msg = "Response : " + response.code() + response.body();
+                throw new UnexpectedResponseException(msg);
+            }
+        } catch (IOException e) {
+            String msg = "Error occurred while processing the response";
+            log.error(msg, e);
+            throw new APIServicesException(e);
+        }
+    }
+
+    @Override
+    public JSONObject getDocumentations(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo, APIIdentifier apiIdentifier)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
+
+        String getDocumentationsEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+                + Constants.COLON + port + Constants.API_ENDPOINT + apiIdentifier.getUUID() + "/documents?limit=1000";
+
+        Request request = new Request.Builder()
+                .url(getDocumentationsEndPoint)
+                .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
+                        + accessTokenInfo.getAccess_token())
+                .get()
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            if (HttpStatus.SC_OK == response.code()) {
+                JSONObject jsonObject = new JSONObject(response.body().string());
+                return jsonObject;
+            } else if (HttpStatus.SC_UNAUTHORIZED == response.code()) {
+                APIApplicationServices apiApplicationServices = new APIApplicationServicesImpl();
+                AccessTokenInfo refreshedAccessToken = apiApplicationServices.
+                        generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
+                                apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
+                //TODO: max attempt count
+                return getDocumentations(apiApplicationKey, refreshedAccessToken, apiIdentifier);
+            } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
+                String msg = "Bad Request, Invalid scope object";
+                log.error(msg);
+                throw new BadRequestException(msg);
+            } else {
+                String msg = "Response : " + response.code() + response.body();
+                throw new UnexpectedResponseException(msg);
+            }
+        } catch (IOException e) {
+            String msg = "Error occurred while processing the response";
+            log.error(msg, e);
+            throw new APIServicesException(e);
+        }
+    }
+
+    @Override
+    public boolean deleteDocumentations(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                        APIIdentifier apiIdentifier, String documentID)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
+
+        String getDocumentationsEndPoint = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+                + Constants.COLON + port + Constants.API_ENDPOINT + apiIdentifier.getUUID() + "/documents/" + documentID;
+
+        Request request = new Request.Builder()
+                .url(getDocumentationsEndPoint)
+                .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
+                        + accessTokenInfo.getAccess_token())
+                .delete()
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            if (HttpStatus.SC_OK == response.code()) {
+                return true;
+            } else if (HttpStatus.SC_UNAUTHORIZED == response.code()) {
+                APIApplicationServices apiApplicationServices = new APIApplicationServicesImpl();
+                AccessTokenInfo refreshedAccessToken = apiApplicationServices.
+                        generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
+                                apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
+                //TODO: max attempt count
+                return deleteDocumentations(apiApplicationKey, refreshedAccessToken, apiIdentifier, documentID);
+            } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
+                String msg = "Bad Request, Invalid scope object";
+                log.error(msg);
+                throw new BadRequestException(msg);
+            } else {
+                String msg = "Response : " + response.code() + response.body();
+                throw new UnexpectedResponseException(msg);
+            }
+        } catch (IOException e) {
+            String msg = "Error occurred while processing the response";
+            log.error(msg, e);
+            throw new APIServicesException(e);
+        }
+    }
+
+    @Override
+    public Documentation addDocumentation(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                          APIIdentifier apiIdentifier, Documentation documentation)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
+
+        String addNewScope = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+                + Constants.COLON + port + Constants.API_ENDPOINT + apiIdentifier.getUUID() + "/documents";
+
+        String document = "{\n" +
+                "  \"name\": \" " + documentation.getName() + " \",\n" +
+                "  \"type\": \" " + documentation.getType() + " \",\n" +
+                "  \"summary\": \" " + documentation.getSummary() + " \",\n" +
+                "  \"sourceType\": \" " + documentation.getSourceType() + " \",\n" +
+                "  \"inlineContent\": \" " + documentation.getSourceType() + " \",\n" +
+                "  \"visibility\": \" " + documentation.getVisibility() + " \",\n" +
+                "  \"createdBy\": \" admin \"\n" +
+                "}";
+
+        RequestBody requestBody = RequestBody.create(JSON, document);
+        Request request = new Request.Builder()
+                .url(addNewScope)
+                .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
+                        + accessTokenInfo.getAccess_token())
+                .post(requestBody)
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            if (HttpStatus.SC_CREATED == response.code()) {
+                return gson.fromJson(response.body().string(), Documentation.class);
+            } else if (HttpStatus.SC_UNAUTHORIZED == response.code()) {
+                APIApplicationServices apiApplicationServices = new APIApplicationServicesImpl();
+                AccessTokenInfo refreshedAccessToken = apiApplicationServices.
+                        generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
+                                apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
+                //TODO: max attempt count
+                return addDocumentation(apiApplicationKey, refreshedAccessToken, apiIdentifier, documentation);
+            } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
+                String msg = "Bad Request, Invalid scope object";
+                log.error(msg);
+                throw new BadRequestException(msg);
+            } else {
+                String msg = "Response : " + response.code() + response.body();
+                throw new UnexpectedResponseException(msg);
+            }
+        } catch (IOException e) {
+            String msg = "Error occurred while processing the response";
+            log.error(msg, e);
+            throw new APIServicesException(e);
+        }
+    }
+
+    @Override
+    public boolean addDocumentationContent(APIApplicationKey apiApplicationKey, AccessTokenInfo accessTokenInfo,
+                                          API api, String docId, String docContent)
+            throws APIServicesException, BadRequestException, UnexpectedResponseException {
+
+        String addNewScope = Constants.HTTPS_PROTOCOL + Constants.SCHEME_SEPARATOR + host
+                + Constants.COLON + port + Constants.API_ENDPOINT + api.getUuid() + "/documents/" + docId;
+
+        RequestBody requestBody = RequestBody.create(JSON, docContent);
+        Request request = new Request.Builder()
+                .url(addNewScope)
+                .addHeader(Constants.AUTHORIZATION_HEADER_NAME, Constants.AUTHORIZATION_HEADER_PREFIX_BEARER
+                        + accessTokenInfo.getAccess_token())
+                .post(requestBody)
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            if (HttpStatus.SC_OK == response.code()) {
+                return true;
+            } else if (HttpStatus.SC_UNAUTHORIZED == response.code()) {
+                APIApplicationServices apiApplicationServices = new APIApplicationServicesImpl();
+                AccessTokenInfo refreshedAccessToken = apiApplicationServices.
+                        generateAccessTokenFromRefreshToken(accessTokenInfo.getRefresh_token(),
+                                apiApplicationKey.getClientId(), apiApplicationKey.getClientSecret());
+                //TODO: max attempt count
+                return addDocumentationContent(apiApplicationKey, refreshedAccessToken, api,docId ,docContent);
+            } else if (HttpStatus.SC_BAD_REQUEST == response.code()) {
+                String msg = "Bad Request, Invalid scope object";
+                log.error(msg);
+                throw new BadRequestException(msg);
+            } else {
+                String msg = "Response : " + response.code() + response.body();
+                throw new UnexpectedResponseException(msg);
+            }
+        } catch (IOException e) {
+            String msg = "Error occurred while processing the response";
+            log.error(msg, e);
+            throw new APIServicesException(e);
+        }
+    }
+
 }

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.webapp.publisher/src/main/java/io/entgra/device/mgt/core/apimgt/webapp/publisher/APIPublisherServiceImpl.java

@@ -242,10 +242,9 @@ public class APIPublisherServiceImpl implements APIPublisherService {
 //                                Set<String> allSharedScopeKeys = apiProvider.getAllSharedScopeKeys(tenantDomain); //get all scopes
                                 Set<ApiScope> scopesToMoveAsSharedScopes = new HashSet<>();
                                 for (ApiScope apiScope : apiConfig.getScopes()) {
-                                    // if the scope is not available as shared scope and it is assigned to an API as a local scope
+                                    // if the scope is not available as shared scope, and it is assigned to an API as a local scope
                                     // need remove the local scope and add as a shared scope
                                     if (!publisherRESTAPIServices.isSharedScopeNameExists(apiApplicationKey, accessTokenInfo, apiScope.getKey())) {
-//                                        if (apiProvider.isScopeKeyAssignedLocally(apiIdentifier, apiScope.getKey(), tenantId)) {
                                         if (apiProvider.isScopeKeyAssignedLocally(apiIdentifier, apiScope.getKey(), tenantId)) {
                                             // collect scope to move as shared scopes
                                             scopesToMoveAsSharedScopes.add(apiScope);
@@ -315,8 +314,7 @@ public class APIPublisherServiceImpl implements APIPublisherService {
                                     for (Mediation m : mediationList) {
                                         if (apiConfig.getInSequenceName().equals(m.getName())) {
                                             m.setConfig(apiConfig.getInSequenceConfig());
-//                                            apiProvider
+//                                            apiProvider.updateApiSpecificMediationPolicyContent(existingAPI.getUuid(), m,
-//                                                    .updateApiSpecificMediationPolicyContent(existingAPI.getUuid(), m,
 //                                                            tenantDomain);
                                             publisherRESTAPIServices.
                                                     updateApiSpecificMediationPolicyContent(apiApplicationKey,
@@ -334,36 +332,59 @@ public class APIPublisherServiceImpl implements APIPublisherService {
                                 }
 
                                 // Assumption: Assume the latest revision is the published one
-                                String latestRevisionUUID = apiProvider.getLatestRevisionUUID(existingAPI.getUuid());
+//                                String latestRevisionUUID = apiProvider.getLatestRevisionUUID(existingAPI.getUuid());
-//                                List<APIRevisionDeployment> latestRevisionDeploymentList =
+//                                List<APIRevisionDeployment> revisionDeploymentList =
 //                                        apiProvider.getAPIRevisionDeploymentList(latestRevisionUUID);
-                                List<APIRevisionDeployment> latestRevisionDeploymentList = (List<APIRevisionDeployment>)
+
+                                // This will retrieve the deployed revision list
+                                List<APIRevisionDeployment> revisionDeploymentList = (List<APIRevisionDeployment>)
                                         publisherRESTAPIServices.getAPIRevisionDeployment(apiApplicationKey, accessTokenInfo, existingAPI.getUuid());
+                                // This will retrieve the un deployed revision list
+                                List<APIRevision> undeployedRevisionList = (List<APIRevision>)
+                                        publisherRESTAPIServices.getAPIRevisions(apiApplicationKey, accessTokenInfo,
+                                                existingAPI.getUuid(), "?query=deployed:false").get("list");
 
 //                                List<APIRevision> apiRevisionList = apiProvider.getAPIRevisions(existingAPI.getUuid());
-                                List<APIRevision> apiRevisionList = (List<APIRevision>) publisherRESTAPIServices.getAPIRevision(apiApplicationKey,
+//                                List<APIRevision> apiRevisionList = (List<APIRevision>) publisherRESTAPIServices.getAPIRevision(apiApplicationKey,
-                                        accessTokenInfo, existingAPI.getUuid()).get("list");
+//                                        accessTokenInfo, existingAPI.getUuid()).get("list");
+                                int apiRevisionCount = (int) publisherRESTAPIServices.getAPIRevisions(apiApplicationKey,
+                                        accessTokenInfo, existingAPI.getUuid(), "").get("count");
 
-                                if (apiRevisionList.size() >= 5) {
+                                if (apiRevisionCount >= 5) {
-                                    String earliestRevisionUUID = apiProvider.getEarliestRevisionUUID(existingAPI.getUuid());
+//                                    String earliestRevisionUUID = apiProvider.getEarliestRevisionUUID(existingAPI.getUuid());
-//                                    List<APIRevisionDeployment> earliestRevisionDeploymentList =
+//                                    List<APIRevisionDeployment> undeployedRevisionList =
 //                                            apiProvider.getAPIRevisionDeploymentList(earliestRevisionUUID);
-                                    List<APIRevisionDeployment> earliestRevisionDeploymentList = (List<APIRevisionDeployment>)
+//                                    List<APIRevisionDeployment> undeployedRevisionList = (List<APIRevisionDeployment>)
-                                            publisherRESTAPIServices.getAPIRevisionDeployment(apiApplicationKey, accessTokenInfo, existingAPI.getUuid());
+//                                            publisherRESTAPIServices.getAPIRevisionDeployment(apiApplicationKey, accessTokenInfo, existingAPI.getUuid());
-                                    apiProvider.undeployAPIRevisionDeployment(existingAPI.getUuid(), earliestRevisionUUID, earliestRevisionDeploymentList);
+
-                                    apiProvider.deleteAPIRevision(existingAPI.getUuid(), earliestRevisionUUID, tenantDomain);
+                                    APIRevisionDeployment latestRevisionDeployment = revisionDeploymentList.get(0);
+                                    APIRevision earliestUndeployRevision = undeployedRevisionList.get(0);
+
+//                                    apiProvider.undeployAPIRevisionDeployment(existingAPI.getUuid(), earliestRevisionUUID, undeployedRevisionList);
+                                    publisherRESTAPIServices.undeployAPIRevisionDeployment(apiApplicationKey,
+                                            accessTokenInfo, latestRevisionDeployment, existingAPI.getUuid());
+
+//                                    apiProvider.deleteAPIRevision(existingAPI.getUuid(), earliestRevisionUUID, tenantDomain);
+                                    publisherRESTAPIServices.deleteAPIRevision(apiApplicationKey, accessTokenInfo,
+                                            earliestUndeployRevision, existingAPI.getUuid());
                                 }
 
                                 // create new revision
                                 APIRevision apiRevision = new APIRevision();
                                 apiRevision.setApiUUID(existingAPI.getUuid());
                                 apiRevision.setDescription("Updated Revision");
-                                String apiRevisionId = apiProvider.addAPIRevision(apiRevision, tenantDomain);
+//                                String apiRevisionId = apiProvider.addAPIRevision(apiRevision, tenantDomain);
+                                String apiRevisionId = publisherRESTAPIServices.addAPIRevision(apiApplicationKey,
+                                        accessTokenInfo, apiRevision).getRevisionUUID();
 
-                                apiProvider.deployAPIRevision(existingAPI.getUuid(), apiRevisionId, latestRevisionDeploymentList);
+//                                apiProvider.deployAPIRevision(existingAPI.getUuid(), apiRevisionId, revisionDeploymentList);
+                                publisherRESTAPIServices.deployAPIRevision(apiApplicationKey, accessTokenInfo,
+                                        existingAPI.getUuid(), apiRevisionId, revisionDeploymentList);
 
                                 if (CREATED_STATUS.equals(existingAPI.getStatus())) {
-                                    apiProvider.changeLifeCycleStatus(tenantDomain, existingAPI.getUuid(), PUBLISH_ACTION, null);
+//                                    apiProvider.changeLifeCycleStatus(tenantDomain, existingAPI.getUuid(), PUBLISH_ACTION, null);
+                                    publisherRESTAPIServices.changeLifeCycleStatus(apiApplicationKey,accessTokenInfo,
+                                            existingAPI.getUuid(), PUBLISH_ACTION);
                                 }
                             }
                         }
@@ -395,17 +416,33 @@ public class APIPublisherServiceImpl implements APIPublisherService {
                             apiDocumentation.setSummary(apiConfig.getApiDocumentationSummary());
                             apiDocumentation.setOtherTypeName(null);
 
-                            try {
+                            //Including below code lines inside the try block because  'getDocumentation' method returns an APIManagementException exception when it doesn't have any existing doc
-                                //Including below code lines inside the try block because  'getDocumentation' method returns an APIManagementException exception when it doesn't have any existing doc
+//                                Documentation existingDoc = apiProvider.getDocumentation(api.getId(), DocumentationType.HOWTO, apiConfig.getApiDocumentationName());
-                                Documentation existingDoc = apiProvider.getDocumentation(api.getId(), DocumentationType.HOWTO, apiConfig.getApiDocumentationName());
+                            JSONArray documentList = (JSONArray) publisherRESTAPIServices.getDocumentations(apiApplicationKey,
-                                apiProvider.removeDocumentation(api.getId(), existingDoc.getId(), null);
+                                    accessTokenInfo, api.getId()).get("list");
-                            } catch (APIManagementException e) {
+
+                            if (!(documentList.length() == 0)) {
+                                for (int i = 0; i < documentList.length(); i++) {
+                                    JSONObject existingDoc = documentList.getJSONObject(i);
+                                    if (existingDoc.getString("name").equals(apiConfig.getApiDocumentationName())
+                                            && existingDoc.getString("type").equals(DocumentationType.HOWTO)) {
+                                        //apiProvider.removeDocumentation(api.getId(), existingDoc.getId(), null);
+                                        publisherRESTAPIServices.deleteDocumentations(apiApplicationKey, accessTokenInfo,
+                                                api.getId(), existingDoc.getString("documentId"));
+                                    }
+                                }
+                            } else {
                                 log.info("There is no any existing api documentation.");
                             }
-                            apiProvider.addDocumentation(api.getId(), apiDocumentation);
+//                            apiProvider.addDocumentation(api.getId(), apiDocumentation);
-                            apiProvider.addDocumentationContent(api, apiConfig.getApiDocumentationName(), docContent);
+                            Documentation createdDoc = publisherRESTAPIServices.addDocumentation(apiApplicationKey, accessTokenInfo,
+                                    api.getId(), apiDocumentation);
+
+//                            apiProvider.addDocumentationContent(api, apiConfig.getApiDocumentationName(), docContent);
+                            publisherRESTAPIServices.addDocumentationContent(apiApplicationKey, accessTokenInfo, api,
+                                    createdDoc.getId(), docContent);
                         }
-                    } catch (FaultGatewaysException | APIManagementException | IOException | APIServicesException |
+                    } catch (APIManagementException | IOException | APIServicesException |
                              BadRequestException | UnexpectedResponseException e) {
                         String msg = "Error occurred while publishing api";
                         log.error(msg, e);