Merge pull request #270 from dadosfera/bugfixes/13-03

Bugfixes/13 03

.github/workflows/deploy-k8s.yml

@@ -1,73 +0,0 @@
-name: Deploy K8S Modifications
-
-on:
-  push:
-    branches:
-      - main
-      - beta
-
-jobs:
-  extract_environment:
-    runs-on: ubuntu-22.04
-    outputs:
-      environment: ${{ steps.extract_environment.outputs.environment }}
-    steps:
-      - name: Extract Environment
-        run: |
-          if [ ${GITHUB_REF} == "refs/heads/main" ]; then
-            echo "environment=prd" >> $GITHUB_OUTPUT
-          elif [ ${GITHUB_REF} == "refs/heads/beta" ]; then
-            echo "environment=stg" >> $GITHUB_OUTPUT
-          fi
-        id: extract_environment
-
-  helmfile-deploy:
-    needs: [extract_environment]
-    runs-on: [self-hosted, "prd-azure"]
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-
-      - name: Set up Helm
-        uses: azure/setup-helm@v1
-        with:
-          version: 'v3.9.0'
-
-      - name: Install Azure ClI
-        run: |
-          curl -sL https://aka.ms/InstallAzureCLIDeb | bash
-
-      - uses: azure/login@v2
-        with:
-          creds: '{"clientId":"${{ secrets.ARM_CLIENT_ID }}","clientSecret":"${{ secrets.ARM_CLIENT_SECRET }}","subscriptionId":"${{ secrets.ARM_SUBSCRIPTION_ID }}","tenantId":"${{ secrets.ARM_TENANT_ID }}"}'
-
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: '3.8'
-
-      - name: Install Helmfile
-        run: |
-          wget https://github.com/helmfile/helmfile/releases/download/v0.148.0/helmfile_0.148.0_linux_amd64.tar.gz
-          tar -xzf helmfile_0.148.0_linux_amd64.tar.gz
-          mv helmfile /usr/local/bin/
-          helmfile --version
-
-      - name: Install Helm Diff Plugin
-        run: helm plugin install https://github.com/databus23/helm-diff || true
-
-      - name: Setup kubectl
-        uses: azure/setup-kubectl@v1
-        with:
-          version: 'v1.30.1'
-
-      - name: Authenticate with cluster
-        env:
-          CLUSTER_NAME: platform-${{ needs.extract_environment.outputs.environment }}
-        run: az aks get-credentials --resource-group dadosfera-prd --name ${CLUSTER_NAME} --overwrite-existing
-
-      - name: Run Helmfile Apply
-        env:
-          ENV: ${{ needs.extract_environment.outputs.environment }}
-        run: helmfile -f helmfiles/${ENV}.yaml sync

README.md

@@ -2,6 +2,7 @@
   <image src="./assets/maestro.svg" style="width:10rem">
 </p>
 
+
 # Maestro
 
 Maestro é a API principal da Dadosfera. É responsável pela comunicação do Frontend com nossos microsserviços.

docsfera.json

@@ -4787,6 +4787,41 @@
           ]
         }
       },
+      "/catalog/register-dataset": {
+        "post": {
+          "operationId": "CatalogController_registerDatasetWithMetadataRequest",
+          "parameters": [
+            {
+              "name": "dadosfera-lang",
+              "in": "header",
+              "required": false,
+              "schema": {
+                "enum": [
+                  "pt-br",
+                  "en-us"
+                ],
+                "type": "string"
+              }
+            }
+          ],
+          "responses": {
+            "201": {
+              "description": ""
+            }
+          },
+          "tags": [
+            "Catalog"
+          ],
+          "security": [
+            {
+              "access-token": []
+            },
+            {
+              "access-token": []
+            }
+          ]
+        }
+      },
       "/terms-of-use/token": {
         "get": {
           "operationId": "TermsOfUseController_getToken",
@@ -5431,6 +5466,125 @@
           ]
         }
       },
+      "/open-data/sharing-ocean-data": {
+        "post": {
+          "operationId": "OpenDataController_createUser",
+          "parameters": [
+            {
+              "name": "dadosfera-lang",
+              "in": "header",
+              "required": false,
+              "schema": {
+                "enum": [
+                  "pt-br",
+                  "en-us"
+                ],
+                "type": "string"
+              }
+            },
+            {
+              "name": "language",
+              "required": true,
+              "in": "query",
+              "schema": {
+                "type": "string"
+              }
+            },
+            {
+              "name": "origin",
+              "required": true,
+              "in": "header",
+              "schema": {
+                "type": "string"
+              }
+            }
+          ],
+          "responses": {
+            "200": {
+              "description": ""
+            }
+          },
+          "tags": [
+            "OpenData"
+          ]
+        }
+      },
+      "/customers/{id}/theme": {
+        "post": {
+          "operationId": "ThemeController_saveCustomertheme",
+          "parameters": [
+            {
+              "name": "id",
+              "required": true,
+              "in": "path",
+              "schema": {
+                "type": "string"
+              }
+            }
+          ],
+          "requestBody": {
+            "required": true,
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/CustomerThemeRequest"
+                }
+              }
+            }
+          },
+          "responses": {
+            "200": {
+              "description": "",
+              "content": {
+                "application/json": {
+                  "schema": {
+                    "$ref": "#/components/schemas/CustomerThemeResponse"
+                  }
+                }
+              }
+            }
+          },
+          "tags": [
+            "Theme"
+          ],
+          "security": [
+            {
+              "access-token": []
+            },
+            {
+              "access-token": []
+            }
+          ]
+        },
+        "get": {
+          "operationId": "ThemeController_getCustomerTheme",
+          "parameters": [
+            {
+              "name": "id",
+              "required": true,
+              "in": "path",
+              "schema": {
+                "type": "string"
+              }
+            }
+          ],
+          "responses": {
+            "200": {
+              "description": "",
+              "content": {
+                "application/json": {
+                  "schema": {
+                    "$ref": "#/components/schemas/CustomerThemeResponse"
+                  }
+                }
+              }
+            }
+          },
+          "tags": [
+            "Theme"
+          ]
+        }
+      },
       "/health": {
         "get": {
           "operationId": "HealthController_check",
@@ -5497,6 +5651,9 @@
             "name": {
               "type": "string"
             },
+            "displayName": {
+              "type": "string"
+            },
             "tier": {
               "type": "string"
             },
@@ -5508,15 +5665,20 @@
               "items": {
                 "type": "string"
               }
+            },
+            "themeEnabled": {
+              "type": "boolean"
             }
           },
           "required": [
             "modules",
             "id",
             "name",
+            "displayName",
             "tier",
             "scheduleLimit",
-            "links"
+            "links",
+            "themeEnabled"
           ]
         },
         "AuthUser": {
@@ -8234,8 +8396,61 @@
           "required": [
             "links"
           ]
+        },
+        "CustomerThemeRequest": {
+          "type": "object",
+          "properties": {
+            "displayName": {
+              "type": "string"
+            },
+            "backgroundColor": {
+              "type": "string"
+            },
+            "textColor": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "displayName",
+            "backgroundColor",
+            "textColor"
+          ]
+        },
+        "CustomerTheme": {
+          "type": "object",
+          "properties": {
+            "backgroundColor": {
+              "type": "string"
+            },
+            "textColor": {
+              "type": "string"
+            },
+            "logo": {
+              "type": "string"
+            },
+            "logoLogin": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "backgroundColor",
+            "textColor",
+            "logo",
+            "logoLogin"
+          ]
+        },
+        "CustomerThemeResponse": {
+          "type": "object",
+          "properties": {
+            "theme": {
+              "$ref": "#/components/schemas/CustomerTheme"
+            }
+          },
+          "required": [
+            "theme"
+          ]
         }
       }
     }
   }
-}
+}

environment.d.ts

@@ -12,6 +12,8 @@ declare global {
       INTERNAL_SWAGGER: 'true' | 'false';
 
       AWS_REGION: string;
+      OPEN_GROUP_ID: string;
+      OPEN_CUSTOMER_ID: string;
     }
   }
 }

helmfiles/prd.yaml

@@ -13,4 +13,10 @@ charts:
       - name: maestro.in_factory_url
         value: in-factory.dadosfera.ai
       - name: maestro.tr_factory_url
-        value: in-factory.dadosfera.ai
+        value: in-factory.dadosfera.ai
+      - name: maestro.open_customer_id
+        value: f239718a-a271-4ef9-ae7e-02a2f0f3aa6e
+      - name: maestro.open_group_id
+        value: 401573bb-334f-44b2-b30e-88d4cea31ae9
+      - name: replicaCount
+        value: 2

helmfiles/stg.yaml

@@ -5,12 +5,18 @@ charts:
     - ../maestro/values.yaml
     set:
       - name: maestro.duc_url
-        value: duc-temp.dadosfera.ai
+        value: duc.stg.dadosfera.ai
       - name: hostname
-        value: maestro-temp.dadosfera.ai
+        value: maestro.stg.dadosfera.ai
       - name: maestro.pi_factory_url
-        value: pi-factory-temp.dadosfera.ai
+        value: pi-factory.dadosfera.ai
       - name: maestro.in_factory_url
-        value: in-factory-temp.dadosfera.ai
+        value: in-factory.dadosfera.ai
       - name: maestro.tr_factory_url
-        value: in-factory-temp.dadosfera.ai
+        value: in-factory.dadosfera.ai
+      - name: maestro.open_customer_id
+        value: b3e3dfe5-b992-4586-a73c-c0b0c00f615d
+      - name: maestro.open_group_id
+        value: e3f98a2f-7748-4981-8505-7695c8ca8218
+      - name: replicaCount
+        value: 1

maestro/templates/deployment.yaml

@@ -35,7 +35,13 @@ spec:
                   - key: application
                     operator: In
                     values:
-                      - backend
+                      - general
+
+      tolerations:
+      - key: "kubernetes.azure.com/scalesetpriority"
+        operator: "Equal"
+        value: "spot"
+        effect: "NoSchedule"
 
       containers:
         - name: maestro
@@ -90,6 +96,10 @@ spec:
               value: {{ .Values.maestro.tr_factory_url }}
             - name: UPLOAD_FILE_AGENT_CONNECTION
               value: {{ .Values.maestro.upload_file_agent_connection }}
+            - name: OPEN_CUSTOMER_ID
+              value: {{ .Values.maestro.open_customer_id }}
+            - name: OPEN_GROUP_ID
+              value: {{ .Values.maestro.open_group_id }}
             - name: JWT_PRIVATE_KEY
               valueFrom:
                 secretKeyRef:

maestro/templates/ingress-private.yaml

@@ -0,0 +1,28 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    nginx.ingress.kubernetes.io/whitelist-source-range: "69.49.241.121/32" # hostgator ip 
+    nginx.ingress.kubernetes.io/proxy-body-size: "0"
+    nginx.ingress.kubernetes.io/server-snippet: |
+      underscores_in_headers on;
+      ignore_invalid_headers on;
+      
+  generation: 1
+  labels:
+    app: maestro
+  name: open-data
+  namespace: applications
+spec:
+  ingressClassName: nginx
+  rules:
+  - host: {{ .Values.hostname }}
+    http:
+      paths:
+      - backend:
+          service:
+            name: maestro
+            port:
+              number: {{ .Values.ingress.port }}
+        path: /open-data/sharing-ocean-data
+        pathType: Prefix

maestro/values.yaml

@@ -3,7 +3,7 @@
 # Declare variables to be passed into your templates.
 
 replicaCount: 3
-hostname: maestro-temp.dadosfera.ai
+hostname: maestro.dadosfera.ai
 image:
   repository: 611330257153.dkr.ecr.us-east-1.amazonaws.com/microservices/maestro_prd
   pullPolicy: IfNotPresent
@@ -40,7 +40,8 @@ maestro:
   sm_oauth_path: prd/root/oauth_applications
   tr_factory_url: in-factory.dadosfera.ai
   upload_file_agent_connection: cbc2f881-58c4-4d60-8003-0979b0b5b911
-
+  open_customer_id: f239718a-a271-4ef9-ae7e-02a2f0f3aa6e
+  open_group_id: 401573bb-334f-44b2-b30e-88d4cea31ae9
 autoscaling:
   enabled: false
   minReplicas: 1

package.json

@@ -30,7 +30,7 @@
     "@aws-sdk/client-secrets-manager": "^3.414.0",
     "@dadosfera/dadosfera-logs": "^1.0.0-beta.4",
     "@dadosfera/protospack": "2.5.3",
-    "@dadosfera/protospack-v2": "3.34.0",
+    "@dadosfera/protospack-v2": "^3.37.0-beta.10 ",
     "@grpc/grpc-js": "^1.9.3",
     "@grpc/proto-loader": "^0.7.9",
     "@nestjs/cli": "^9.5.0",
@@ -74,7 +74,7 @@
     "@types/jest": "27.0.2",
     "@types/jsonwebtoken": "^8.5.9",
     "@types/jwk-to-pem": "^2.0.1",
-    "@types/multer": "^1.4.7",
+    "@types/multer": "^1.4.12",
     "@types/node": "^16.18.52",
     "@types/passport-facebook": "^2.1.11",
     "@types/passport-google-oauth20": "^2.0.11",

src/app.module.ts

@@ -26,9 +26,10 @@ import { PipelinesV2Module } from './modules/pipelinesV2/pipelines.module';
 import { ProductboardModule } from './modules/productboard/productboard.module';
 import { MixpanelModule } from './modules/mixpanel/mixpanel.module';
 import { CustomersModule } from './modules/customers/customers.module';
+import { OpenDataModule } from './modules/open-data/open-data.module';
+import { ThemeModule } from './modules/theme/theme.module';
 
 @Module({
-  controllers: [],
   providers: [
     DadosferaLogger,
     {
@@ -58,8 +59,10 @@ import { CustomersModule } from './modules/customers/customers.module';
     ProductboardModule,
     MixpanelModule,
     CustomersModule,
+    OpenDataModule,
+    ThemeModule,
     //Always leave HealthModule last, so it is on the bottom of swagger
-    HealthModule,
+    HealthModule
   ],
 })
 export class AppModule {}

src/modules/auth/dtos/login.ts

@@ -72,11 +72,15 @@ export class AuthCustomer {
   @ApiProperty()
   name: string;
   @ApiProperty()
+  displayName: string;
+  @ApiProperty()
   tier: string;
   @ApiProperty()
   scheduleLimit: string;
   @ApiProperty()
   links: Link[];
+  @ApiProperty()
+  themeEnabled: boolean;
 }
 
 export class AuthSignInReq implements AuthSignInRequest {

src/modules/catalog/catalog-client.ts

@@ -5,6 +5,7 @@ import {
 } from '@nestjs/microservices';
 import { credentials } from '@grpc/grpc-js';
 import { Catalog } from '@dadosfera/protospack-v2';
+import { PlatformInterfaces } from '@dadosfera/protospack-v2';
 
 const isLocalConnection =
   process.env.PIFACTORY_URL.startsWith('pi-factory:') ||
@@ -19,11 +20,13 @@ export class CatalogClientConfiguration {
       package: [
         Catalog.ProtoPackages.ReadPackage,
         Catalog.ProtoPackages.WritePackage,
+        PlatformInterfaces.ProtoPackages.WritePackage
       ],
       credentials: isLocalConnection ? undefined : credentials.createSsl(),
       protoPath: [
         Catalog.ProtoPaths.ReadFilePath,
         Catalog.ProtoPaths.WriteFilePath,
+        PlatformInterfaces.ProtoPaths.WriteFilePath
       ],
       loader: {
         keepCase: true,

src/modules/catalog/catalog.controller.ts

@@ -13,6 +13,8 @@ import {
   Put,
   Query,
   UseFilters,
+  HttpException,
+  HttpStatus,
 } from '@nestjs/common';
 import {
   ApiCreatedResponse,
@@ -30,6 +32,7 @@ import { CatalogService } from './catalog.service';
 import { DadosferaLogger } from '@dadosfera/dadosfera-logs';
 import { PackTheMetadata } from 'src/utils/ PackTheMetadata';
 import { RequestUser, User } from 'src/decorators/user.decorator';
+import { lastValueFrom } from 'rxjs';
 import {
   BatchRemoveRlsRulesRequest,
   GetDatasetCatalogTaskRes,
@@ -54,6 +57,7 @@ import {
   AddRlsRuleRequest,
   GetNimbusDashboardsRequest,
   GetRlsRulesRequest,
+  RegisterDatasetWithMetatadaRequest,
 } from '@dadosfera/protospack-v2/dist/lib/Catalog/interfaces/messages';
 
 @ApiTags('Catalog')
@@ -743,4 +747,94 @@ export class CatalogController {
 
     return JSON.parse(dashboards);
   }
+
+
+  @Post('register-dataset')
+  @RequireSomePermission(
+    PERMISSIONS_GROUPS.CATALOG.permissions.CREATE,
+    PERMISSIONS_GROUPS.CATALOG.permissions.DATA_MANAGER
+  )
+  async registerDatasetWithMetadataRequest(
+    @Body() body: RegisterDatasetWithMetatadaRequest,
+    @User() user: RequestUser,
+  ) {
+      const { customer_id, customer_name, user_id, username } = user;
+      const logMetadata = {
+        customer_name: customer_name,
+        user_id: user_id,
+        method: 'POST',
+        path: '/catalog/register-dataset',
+      };
+    try {
+
+      const metadata = PackTheMetadata({
+        customer_id,
+        customer_name,
+        user_id,
+        username,
+      });
+
+      this.logger.log(`Request from user ${user_id} for customer ${customer_name}`, logMetadata);
+
+      // Create table metadata
+      const tableMetadataBody = {
+        table_metadata: body.table_metadata,
+        info: {
+          customer: customer_name,
+          
+        },
+        logMetadata: logMetadata
+      };
+      
+      const table_metadata_id = await this.catalogService.createTableMetadata(
+        tableMetadataBody,
+      );
+      this.logger.info(`table_metadata_id: ${table_metadata_id}`, logMetadata);
+
+      // Create column metadata
+      const columnMetadataBody = {
+        column_metadata: body.column_metadata,
+        info: {
+          customer: customer_name,
+        },
+      };
+      this.logger.info(`Creating column metadata for table ${table_metadata_id}`, logMetadata);
+      const column_metadata_ids = await this.catalogService.createColumnMetadata(columnMetadataBody)
+
+      // Create data preview
+      const dataPreviewBody = {
+        data_preview: body.data_preview,
+        info: {
+          customer: customer_name,
+        },
+      };
+      this.logger.debug(`Creating data preview for table ${table_metadata_id}`, logMetadata);
+      const data_preview_id = await this.catalogService.createDataPreview(
+        dataPreviewBody,
+      );
+
+      // Catalog dataset item
+      this.logger.info(`Cataloging dataset item for table ${table_metadata_id}`, logMetadata);
+      await this.catalogService.catalogDatasetItem(table_metadata_id, metadata);
+      this.logger.info(`Dataset registration completed successfully for table ${table_metadata_id}`, logMetadata);
+      return {
+        message: 'Dataset registered successfully',
+        table_metadata_id: table_metadata_id,
+        column_metadata_ids: column_metadata_ids,
+        data_preview_id: data_preview_id,
+      };
+    } catch (error) {
+      this.logger.error(`Failed to register dataset. The following error occurred: ${error.response.data}`, logMetadata);
+
+      throw new HttpException(
+        {
+          message: 'Ocorreu um erro ao registrar o dataset',
+          error: error.message,
+          code: 'REGISTRATION_FAILED',
+          details: error.message,
+        },
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+  }
 }

src/modules/catalog/catalog.service.ts

@@ -5,6 +5,11 @@ import {
   ProtoServices,
   Messages,
 } from '@dadosfera/protospack-v2/dist/lib/Catalog';
+import {
+  Messages as PlatformInterfaceMessages,
+  WriteService as PlatformInterfaceWriteService,
+  ProtoServices as PlatformInterfacesProtoServices,
+} from '@dadosfera/protospack-v2/dist/lib/PlatformInterfaces';
 import {
   BadRequestException,
   HttpException,
@@ -33,6 +38,7 @@ import {
 class CatalogService implements OnModuleInit {
   catalogReadService: ReadService.CatalogReadServices;
   catalogWriteService: WriteService.CatalogWriteServices;
+  platformWriteService: PlatformInterfaceWriteService.PlatformInterfacesWriteServices;
   logger: any;
   constructor(
     @Inject(DadosferaLogger)
@@ -54,9 +60,14 @@ class CatalogService implements OnModuleInit {
       this.grpcClient.getService<WriteService.CatalogWriteServices>(
         ProtoServices.CatalogWriteServices,
       );
+    this.platformWriteService =
+      this.grpcClient.getService<PlatformInterfaceWriteService.PlatformInterfacesWriteServices>(
+        PlatformInterfacesProtoServices.PlatformInterfacesWriteServices,
+      );
   }
 
   _getNimbusUrl(body) {
+    this.logger.debug(`Body: ${JSON.stringify(body)}`);
     const customer = body.info.customer.toLowerCase();
 
     if (process.env.ENV === 'prd') {
@@ -420,6 +431,112 @@ class CatalogService implements OnModuleInit {
     );
     return res.dashboards;
   }
+
+  async createTableMetadata(body: any): Promise<number> {
+    const nimbusUrl = this._getNimbusUrl(body);
+    this.logger.info(`Nimbus URL: ${nimbusUrl}`, {...body.logMetadata});
+
+    const endpoint = `${nimbusUrl}/api/catalog/table-metadata/`;
+
+    this.logger.info(`Creating table metadata for table ${body.table_metadata.table_name}`, {...body.logMetadata});
+    this.logger.info(`Using endpoint: ${endpoint}`, {...body.logMetadata});
+    this.logger.debug(`Payload: ${JSON.stringify(body.table_metadata)}`, {...body.logMetadata});  
+
+    try {
+      const { data, status } = await axios.post(endpoint, {...body.table_metadata});
+
+      this.logger.info(
+        `Table metadata created successfully with status ${status} for table ${body.table_metadata.table_name}`,
+        {...body.logMetadata},
+      );
+      return data.id;
+    } catch (error) {
+      this.logger.error(
+        `Failed to create table metadata for table ${body.table_metadata.table_name} failed with status ${
+          error.response?.status
+        } because of ${JSON.stringify(error.response?.data) || error.message}`, {...body.logMetadata});
+      throw new Error(error.response?.data?.message || error.message);
+    }
+  }
+
+  async createColumnMetadata(body: any): Promise<number[]> {
+    const nimbusUrl = this._getNimbusUrl(body);
+    this.logger.info(`Nimbus URL: ${nimbusUrl}`, body.logMetadata);
+    const endpoint = `${nimbusUrl}/api/catalog/column-metadata/`;
+
+ 
+
+    try {
+      this.logger.info(`Creating column metadata for table ${body.column_metadata.table_name}`, {...body.logMetadata});
+      this.logger.info(`Using endpoint: ${endpoint}`, {...body.logMetadata});
+      this.logger.debug(`Payload: ${JSON.stringify(body.column_metadata)}`, {...body.logMetadata});
+      const { data, status } = await axios.post(endpoint, body.column_metadata);
+
+      this.logger.info(
+        `Column metadata created successfully with status ${status} for table ${body.column_metadata.table_name}`,
+        {...body.logMetadata},
+      );
+      return data.map((column) => column.id);
+    } catch (error) {
+      this.logger.error(
+        `Failed to create column metadata failed with status for table ${body.column_metadata.table_name} ${
+          error.response?.status
+        } because of ${error.response?.data || error.message}`, {...body.logMetadata});
+      throw new Error(error.response?.data?.message || error.message);
+    }
+  }
+
+  async createDataPreview(body: any): Promise<number> {
+    const nimbusUrl = this._getNimbusUrl(body);
+    this.logger.info(`Nimbus URL: ${nimbusUrl}`, {...body.logMetadata});
+    const endpoint = `${nimbusUrl}/api/catalog/data-preview/`;
+
+    this.logger.info(`Creating data preview for table ${body.data_preview.table_name}`, {...body.logMetadata});
+    this.logger.info(`Using endpoint: ${endpoint}`, {...body.logMetadata});
+    this.logger.debug(`Payload: ${JSON.stringify(body.data_preview)}`, {...body.logMetadata});
+
+    try {
+      const { data, status } = await axios.post(endpoint, body.data_preview);
+
+      this.logger.info(
+        `Data preview created successfully with status ${status} for table ${body.data_preview.table_name}`,
+        {...body.logMetadata},
+      );
+      return data.id;
+    } catch (error) {
+      this.logger.error(
+        `Failed to create data preview for table ${body.data_preview.table_name} failed with status ${
+          error.response?.status
+        } because of ${error.response?.data || error.message}`,
+        {...body.logMetadata},
+      );
+      throw new Error(error.response?.data?.message || error.message);
+    }
+  }
+
+  async catalogDatasetItem(table_metadata_id: number, metadata: Metadata) {
+    const customer_name_raw = metadata.get('customer_name');
+
+    const customer_name = customer_name_raw?.[0]?.toString();
+    if (!customer_name) {
+      throw new BadRequestException('Customer name not found in metadata');
+    }
+    const res = await lastValueFrom(
+      this.platformWriteService.CatalogDataAssets(
+        {
+          data_assets: [
+            {
+              data_asset_id: table_metadata_id.toString(),
+              customer_name: customer_name,
+              data_asset_type: 'dataset',
+            },
+          ],
+        },
+        metadata,
+      ),
+    );
+    return res;
+  }
 }
 
 export { CatalogService };

src/modules/customers/customers.controller.ts

@@ -1,5 +1,4 @@
 import { DadosferaLogger } from '@dadosfera/dadosfera-logs';
-import { IdResponse } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/messages';
 import {
   Body,
   Controller,
@@ -18,7 +17,6 @@ import {
   Authenticated,
   RequireAllPermissions,
 } from 'src/decorators/authentication.decorator';
-import { ApiInternalOnlyEndpoint } from 'src/decorators/swagger.decorator';
 import { GrpcToHttpExceptionFilter } from 'src/error/grpc-to-http-exception.filter';
 import { CustomersService } from './customers.service';
 import { CustomerLinkRequest, CustomerLinksResponse } from './dtos/customers';
@@ -28,7 +26,6 @@ import { PackTheMetadata } from 'src/utils/ PackTheMetadata';
 
 @ApiTags('Customers')
 @Controller('customers')
-@Authenticated()
 @UseFilters(GrpcToHttpExceptionFilter)
 export class CustomersController {
   logger: DadosferaLogger;
@@ -42,6 +39,7 @@ export class CustomersController {
   }
 
   @Get(':id/links')
+  @Authenticated()
   @ApiOkResponse({ type: CustomerLinksResponse })
   async getCustomerLinks(@Param('id') id: string) {
     this.logger.info('getCustomerLinks', { id });
@@ -50,6 +48,7 @@ export class CustomersController {
   }
 
   @Put(':id/links')
+  @Authenticated()
   @RequireAllPermissions(PERMISSIONS_GROUPS.USERS.permissions.ADMIN)
   @ApiOkResponse()
   @HttpCode(HttpStatus.OK)
@@ -63,6 +62,7 @@ export class CustomersController {
   }
 
   @Get('token')
+  @Authenticated()
   @RequireAllPermissions(PERMISSIONS_GROUPS.AUTH.permissions.GENERATE_TOKEN)
   @ApiProduces('text/plain')
   async getCustomerToken(
@@ -79,6 +79,7 @@ export class CustomersController {
   }
 
   @Get('monitoring-dashboard')
+  @Authenticated()
   @RequireAllPermissions(
     PERMISSIONS_GROUPS.CUSTOMER.permissions.MONITORING_DASHBOARD,
   )

src/modules/customers/customers.service.ts

@@ -28,19 +28,24 @@ import {
 } from '@dadosfera/protospack-v2/dist/lib/PipelineV2';
 import { Metadata } from '@grpc/grpc-js';
 import { PipelinesClientConfiguration } from '../pipelinesV2/pipelines-client';
+import DadosferaLogger from '@dadosfera/dadosfera-logs';
 
 // This function will accept any string, which may result in a bug.
 @Injectable()
 export class CustomersService implements OnModuleInit {
   private customerService: CustomersProtoService;
-
+  private logger: DadosferaLogger;
   private pipelineReadService: ReadService.PipelineV2ReadService;
 
   constructor(
     @Inject(DucClient.name) private readonly grpcClient: ClientGrpc,
     @Inject(PipelinesClientConfiguration.name)
     private readonly pipelinesGrpcClient: ClientGrpc,
-  ) {}
+    @Inject(DadosferaLogger)
+    dadosferaLogger: DadosferaLogger,
+  ) {
+    this.logger = dadosferaLogger.logger;
+  }
 
   onModuleInit() {
     this.customerService = this.grpcClient.getService<CustomersProtoService>(
@@ -140,7 +145,7 @@ export class CustomersService implements OnModuleInit {
     const res = await lastValueFrom(
       this.pipelineReadService.PipelineV2GetDashboardUrl(
         {
-          dashboard_id: '45',
+          dashboard_id: '98',
           exp: '15m',
           metabase_customer_name: 'dadosferatech',
         },

src/modules/customers/dtos/customers.ts

@@ -20,3 +20,4 @@ export class CustomerLinksResponse {
   @ApiProperty({ type: [CustomerLink] })
   links: CustomerLink[];
 }
+

src/modules/duc/client.config.ts

@@ -29,6 +29,8 @@ export class DucClient {
         objects: true,
         arrays: true,
       },
+      maxSendMessageLength: 15 * 1024 * 1024, // 15 MB por mensagem
+      maxReceiveMessageLength: 15 * 1024 * 1024,
     },
   };
 

src/modules/open-data/dto/wordpres-form.ts

@@ -0,0 +1,48 @@
+import { ApiProperty } from "@nestjs/swagger";
+
+export class CreateUserOpenDataDTO {
+  @ApiProperty()
+  firstName: string;
+  @ApiProperty()
+  lastName: string;
+  @ApiProperty()
+  email: string;
+  @ApiProperty()
+  organization: string;
+  @ApiProperty()
+  enquiryType: string;
+}
+
+type FormField = {
+  id: string;
+  type: string;
+  title: string;
+  value: string;
+  raw_value: string;
+  required: string;
+};
+
+type MetaData = {
+  title: string;
+  value: string;
+};
+
+export type WordpressForm = {
+  form: {
+    id: string;
+    name: string;
+  };
+  fields: {
+    [key: string]: FormField;
+  };
+  meta: {
+    date: MetaData;
+    time: MetaData;
+    page_url: MetaData;
+    user_agent: MetaData;
+    remote_ip: MetaData;
+    credit: MetaData;
+  };
+};
+
+

src/modules/open-data/open-data.controller.ts

@@ -0,0 +1,101 @@
+import DadosferaLogger from '@dadosfera/dadosfera-logs';
+import { Body, Controller, ForbiddenException, Header, Headers, HttpCode, HttpException, Inject, Param, Post, Query, Req, Res, UseFilters, UseGuards, UseInterceptors } from '@nestjs/common';
+import { ApiCreatedResponse, ApiHeaders, ApiOkResponse, ApiTags } from '@nestjs/swagger';
+import { ApiInternalOnlyController } from 'src/decorators/swagger.decorator';
+import { GrpcToHttpExceptionFilter } from 'src/error/grpc-to-http-exception.filter';
+import { LanguageEnum } from 'src/utils/languages.enum';
+import { UsersService } from '../users/users.service';
+import { Language } from 'src/decorators/language.decorator';
+import { OpenDataService } from './open-data.service';
+import { CreateUserOpenDataDTO, WordpressForm } from './dto/wordpres-form';
+import { Metadata } from '@grpc/grpc-js';
+import { PackTheMetadata } from 'src/utils/ PackTheMetadata';
+import { request } from 'http';
+import { Request } from 'express';
+
+@Controller('open-data')
+@ApiInternalOnlyController()
+@ApiTags('OpenData')
+@ApiHeaders([{ name: 'dadosfera-lang', enum: LanguageEnum, required: false }])
+@UseFilters(GrpcToHttpExceptionFilter)
+export class OpenDataController {
+  logger: DadosferaLogger;
+
+  constructor(
+    @Inject(DadosferaLogger)
+    dadosferaLogger: DadosferaLogger,
+    private openDataService: OpenDataService,
+  ) {
+    this.logger = dadosferaLogger.logger;
+  }
+
+  @Post("/sharing-ocean-data")
+  @HttpCode(200)
+  @Header('content-type', 'application/json')
+  @ApiOkResponse()
+  async createUser(
+    @Body()
+    body: WordpressForm,
+    @Query('language')
+    language: string,
+    @Req()
+    request: Request,
+    @Headers('origin')
+    origin: string
+  ) {
+    this.logger.info('createUser for open data' + JSON.stringify(request.headers));
+
+    const corslist = ["https://devsbm.dadosfera.io", "https://sharingoceandata.com"];
+    if (!corslist.includes(origin)) {
+      this.logger.info('block request by cors list: '+ origin);
+      throw new ForbiddenException();
+    }
+
+    const OPENDATA_CUSTOMER_ID = process.env.OPEN_CUSTOMER_ID;
+    const OPENDATA_GROUP_ID = process.env.OPEN_GROUP_ID;
+    const roles = [process.env.OPEN_GROUP_ID];
+    const metadata = PackTheMetadata({
+      language: language || 'en-us'
+    }); 
+
+    const data = {}
+
+    try {
+      Object.keys(body.fields)
+        .filter(key => body.fields[key].required === "1")
+        .forEach(key => {
+          const field = body.fields[key]
+          data[field.id] = field.value
+        });
+    } catch (e) {
+      this.logger.error('user data ' + e.message);
+    }
+
+    const user: CreateUserOpenDataDTO = {
+      email: data["email"],
+      enquiryType: data["enquiry_type"],
+      firstName: data["first_name"],
+      lastName: data["last_name"],
+      organization: data["organization"]
+    }
+    this.logger.info(`user request to group ${OPENDATA_CUSTOMER_ID} with role ${OPENDATA_GROUP_ID}`);
+
+    try {
+      const id = await this.openDataService.createUser(OPENDATA_CUSTOMER_ID, user, roles, metadata);
+      this.logger.info('user created with id: '+ id);
+      return {
+        success: true,
+        status: 'success',
+        message: 'user created with succesfull'
+      }
+    } catch (e) {
+      this.logger.error('failed with exception: ' + e.message);
+      return {
+        success: false,
+        status: 'failed',
+        message: e.message
+      };
+    }
+  }
+
+}

src/modules/open-data/open-data.module.ts

@@ -0,0 +1,22 @@
+import { Module } from '@nestjs/common';
+import { OpenDataController } from './open-data.controller';
+import { UsersService } from '../users/users.service';
+import { ClientsModule } from '@nestjs/microservices'
+import { DucClient } from '../duc/client.config';
+import DadosferaLogger from '@dadosfera/dadosfera-logs';
+import { RolesModule } from '../roles/roles.module';
+import { PermissionsModule } from '../permissions/permissions.module';
+import { OpenDataService } from './open-data.service';
+
+const client = new DucClient();
+
+@Module({
+  controllers: [OpenDataController],
+  imports: [
+    ClientsModule.register([client.providerOptions]),
+    RolesModule,
+    // PermissionsModule,
+  ],
+  providers: [DadosferaLogger, UsersService, OpenDataService]
+})
+export class OpenDataModule {}

src/modules/open-data/open-data.service.ts

@@ -0,0 +1,51 @@
+import { Inject, Injectable, OnModuleInit } from '@nestjs/common';
+import { lastValueFrom } from 'rxjs';
+import { CreateUserOpenDataDTO } from './dto/wordpres-form';
+import DadosferaLogger from '@dadosfera/dadosfera-logs';
+import { UsersProtoService } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/write-service';
+import { DucClient } from '../duc/client.config';
+import { ClientGrpc } from '@nestjs/microservices';
+import { ProtoServices } from '@dadosfera/protospack-v2/dist/lib/Duc';
+import { Metadata } from '@grpc/grpc-js';
+
+@Injectable()
+export class OpenDataService implements OnModuleInit {
+  logger: DadosferaLogger;
+
+  private usersClientService: UsersProtoService;
+  constructor(
+    @Inject(DadosferaLogger)
+    private dadosferaLogger: DadosferaLogger,
+    @Inject(DucClient.name)
+    private readonly grpcClient: ClientGrpc,
+  ) {
+    this.logger = dadosferaLogger.logger;
+  }
+
+  onModuleInit() {
+    this.usersClientService = this.grpcClient.getService(
+      ProtoServices.UsersProtoService,
+    );
+
+  }
+
+  async createUser(customerId: string, data: CreateUserOpenDataDTO, roleIds: string[], metadata: Metadata) {
+    const body = {
+      email: data.email,
+      name: data.firstName + " " + data.lastName,
+      department: data.organization,
+      jobTitle: data.enquiryType,
+      customerId: customerId,
+      roleIds: roleIds
+    }
+
+    try {
+      const { user } = await lastValueFrom(
+        this.usersClientService.SimpleUserCreate(body, metadata),
+      );
+      return user.id;
+    } catch(err) {
+      return err;
+    }
+  }
+}

src/modules/pipelinesV2/pipelines.service.ts

@@ -328,7 +328,7 @@ export class PipelinesService implements OnModuleInit {
     const res = await lastValueFrom(
       this.pipelineReadService.PipelineV2GetDashboardUrl(
         {
-          dashboard_id: '83',
+          dashboard_id: '95',
           exp: '15m',
           metabase_customer_name: 'dadosferatech',
         },

src/modules/theme/dtos/customers.ts

@@ -0,0 +1,47 @@
+import { Link, Theme } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/entities';
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+
+export class CustomerLink implements Link {
+  @ApiProperty()
+  href: string;
+  @ApiProperty()
+  name: string;
+  @ApiProperty()
+  description: string;
+  @ApiPropertyOptional()
+  iconSrc: string;
+}
+export class CustomerLinkRequest {
+  @ApiProperty({ type: [CustomerLink] })
+  links: CustomerLink[];
+}
+
+export class CustomerLinksResponse {
+  @ApiProperty({ type: [CustomerLink] })
+  links: CustomerLink[];
+}
+
+export class CustomerTheme implements Theme {
+  @ApiProperty()
+  backgroundColor: string;
+  @ApiProperty()
+  textColor: string;
+  @ApiProperty()
+  logo: string;
+  @ApiProperty()
+  logoLogin: string;
+}
+
+export class CustomerThemeResponse {
+  @ApiProperty()
+  theme: CustomerTheme;
+}
+
+export class CustomerThemeRequest {
+  @ApiProperty()
+  displayName: string;
+  @ApiProperty()
+  backgroundColor: string;
+  @ApiProperty()
+  textColor: string;
+}

src/modules/theme/theme.controller.ts

@@ -0,0 +1,127 @@
+import { DadosferaLogger } from '@dadosfera/dadosfera-logs';
+import {
+  Body,
+  Controller,
+  Get,
+  HttpException,
+  HttpStatus,
+  Inject,
+  Param,
+  Post,
+  Put,
+  Query,
+  UploadedFiles,
+  UseFilters,
+  UseInterceptors,
+  HttpCode
+} from '@nestjs/common';
+import { ApiOkResponse, ApiTags } from '@nestjs/swagger';
+import { PERMISSIONS_GROUPS } from 'src/authentication/permissions.enum';
+import {
+  Authenticated,
+  RequireAllPermissions,
+} from 'src/decorators/authentication.decorator';
+import { GrpcToHttpExceptionFilter } from 'src/error/grpc-to-http-exception.filter';
+import { CustomerThemeRequest, CustomerThemeResponse } from './dtos/customers';
+
+import ErrorCodes from 'src/utils/errorCodes';
+import { AnyFilesInterceptor } from '@nestjs/platform-express';
+import { ThemeService } from './theme.service';
+
+@ApiTags('Theme')
+@Controller('customers')
+@UseFilters(GrpcToHttpExceptionFilter)
+export class ThemeController {
+  logger: DadosferaLogger;
+
+  constructor(
+    @Inject(DadosferaLogger)
+    dadosferaLogger: DadosferaLogger,
+    private themeService: ThemeService,
+  ) {
+    this.logger = dadosferaLogger.logger;
+  }
+
+
+  @Post('/:id/theme')
+  @Authenticated()
+  @RequireAllPermissions(PERMISSIONS_GROUPS.USERS.permissions.ADMIN)
+  @ApiOkResponse({ type: CustomerThemeResponse })
+  @UseInterceptors(AnyFilesInterceptor())
+  @HttpCode(HttpStatus.OK)
+  async saveCustomertheme(
+    @Param('id') id: string,
+    @Body() data: CustomerThemeRequest,
+    @UploadedFiles() files: Array<Express.Multer.File>
+  ) {
+
+    this.logger.info('saveCustomertheme' + JSON.stringify({
+      id, 
+    }));
+
+    const logo = files.find(file => file.fieldname === 'logo');
+    const logoLogin = files.find(file => file.fieldname === 'logoLogin');
+
+    this.validFileSize(logo);
+    this.validFileSize(logoLogin);
+    this.validMimeType(logo);
+    this.validMimeType(logoLogin);
+
+    try {
+      const theme = await this.themeService.createThemeByCustomer(id, {
+        ...data,
+        logo,
+        logoLogin
+      });
+      this.logger.info('saveCustomertheme' + JSON.stringify(theme));
+      return theme;
+    } catch (err) {
+      if (err.details === ErrorCodes.CUSTOMER.NOT_FOUND) {
+        this.logger.error('Error - saveCustomertheme - Expect CUSTOMER.NOT_FOUND');
+        throw new HttpException(err.details, HttpStatus.NOT_FOUND);
+      } else {
+        this.logger.error('Error - saveCustomertheme Unknown Error:' + err?.message);
+        return { theme: null };
+      };
+    }
+  }
+
+  private validFileSize(file: Express.Multer.File) {
+    const maxFileSize = 10 * 1024 * 1024; // 10MB
+
+    if (file && file.size > maxFileSize) {
+      throw new HttpException(`O Arquivo ${file.filename} possui mais de 10MB`, HttpStatus.BAD_REQUEST);
+    }
+  }
+
+  private validMimeType(file: Express.Multer.File) {
+    const mimeTypesValid = ['image/jpeg', 'image/jpg', 'image/png'];
+
+    if (file && !mimeTypesValid.includes(file.mimetype)) {
+      throw new HttpException(`O Arquivo ${file.fieldname} deve ser jpeg, jpg, ou png`, HttpStatus.BAD_REQUEST);
+    }
+  }
+
+  @Get('/:id/theme')
+  @ApiOkResponse({ type: CustomerThemeResponse })
+  async getCustomerTheme(@Param('id') id: string) {
+    this.logger.info('getCustomerTheme with id' + id);
+
+    try {
+      const data = await this.themeService.getThemeByCustomer(id);
+      this.logger.info('Success - getCustomerTheme'+ JSON.stringify(data));
+      if (data?.theme) return data;
+
+      return { theme: null };
+    }catch (err) {
+      if (err.details === ErrorCodes.CUSTOMER.NOT_FOUND) {
+        this.logger.error('Error - getCustomerTheme - Expect CUSTOMER.NOT_FOUND');
+        throw new HttpException(err.details, HttpStatus.NOT_FOUND);
+      } else {
+        this.logger.error('Error - getCustomerTheme Unknown Error:' + err?.message);
+        return { theme: null };
+      };
+    }
+  }
+
+}

src/modules/theme/theme.module.ts

@@ -0,0 +1,20 @@
+import { Module } from '@nestjs/common';
+import { DadosferaLogger } from '@dadosfera/dadosfera-logs';
+import { ClientsModule } from '@nestjs/microservices';
+import { ThemeController } from './theme.controller';
+import { ThemeService } from './theme.service';
+import { DucClient } from '../duc/client.config';
+
+const ducClient = new DucClient();
+
+@Module({
+  imports: [
+    ClientsModule.register([
+      ducClient.providerOptions,
+    ]),
+  ],
+  controllers: [ThemeController],
+  providers: [ThemeService, DadosferaLogger],
+  exports: [ThemeService],
+})
+export class ThemeModule {}

src/modules/theme/theme.service.ts

@@ -0,0 +1,158 @@
+import {
+  OnModuleInit,
+  Inject,
+  Injectable,
+  HttpException,
+  HttpStatus,
+  InternalServerErrorException,
+} from '@nestjs/common';
+
+import { firstValueFrom, lastValueFrom, ReplaySubject } from 'rxjs';
+import { Link } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/entities';
+import { DucClient } from '../duc/client.config';
+import { ClientGrpc } from '@nestjs/microservices';
+import { ProtoServices } from '@dadosfera/protospack-v2/dist/lib/Duc';
+import { CustomerUpdateRequest } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/messages';
+import { ThemeProtoService } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/write-service';
+import { ThemeRequest } from '@dadosfera/protospack-v2/dist/lib/Duc/interfaces/messages';
+import { CustomerThemeRequest, CustomerThemeResponse } from './dtos/customers';
+import DadosferaLogger from '@dadosfera/dadosfera-logs';
+import { resolve } from 'path';
+import { Readable } from 'stream';
+
+type Files = {
+  logo: Express.Multer.File,
+  logoLogin: Express.Multer.File,
+}
+
+@Injectable()
+export class ThemeService implements OnModuleInit {
+  private themeService: ThemeProtoService;
+  private logger: DadosferaLogger;
+
+  constructor(
+    @Inject(DucClient.name) private readonly grpcClient: ClientGrpc,
+    @Inject(DadosferaLogger)
+    dadosferaLogger: DadosferaLogger,
+  ) {
+    this.logger = dadosferaLogger.logger;
+  }
+
+  onModuleInit() {
+    this.themeService = this.grpcClient.getService<ThemeProtoService>(
+      ProtoServices.ThemeProtoService,
+    );
+  }
+
+  async createThemeByCustomer(id: string, theme: CustomerThemeRequest & Files) {
+    if (!id) {
+      this.logger.error('Error - saveCustomertheme - not found id:' + id);
+      throw new HttpException(null, HttpStatus.BAD_REQUEST);
+    }
+
+    const customerThemeRequest$ = new ReplaySubject<ThemeRequest>();
+
+    customerThemeRequest$.next({
+      customerId: id,
+      displayName: theme.displayName,
+      backgroundColor: theme.backgroundColor,
+      textColor: theme.textColor,
+      isMetadata: true,
+      filename: '',
+      chunk: Buffer.alloc(0)
+    })
+
+    if(theme.logo) {
+      await this.sendFile(theme.logo, customerThemeRequest$);
+    }
+
+    if(theme.logoLogin) {
+      await this.sendFile(theme.logoLogin, customerThemeRequest$);
+    }
+    customerThemeRequest$.complete();
+
+    const stream = this.themeService.CustomerCreateTheme(customerThemeRequest$);
+
+    return lastValueFrom(stream);
+  }
+
+  async getThemeByCustomer(id: string): Promise<CustomerThemeResponse> {
+    if (!id) {
+      this.logger.error('Error - getCustomerTheme - not found id:' + id);
+      throw new HttpException(null, HttpStatus.BAD_REQUEST);
+    }
+
+    const { theme } = await firstValueFrom(
+      this.themeService.CustomerGetTheme({
+        id
+      }),
+    );
+
+    return {
+      theme
+    }
+  }
+
+   private async sendFile(file: Express.Multer.File, stream$: ReplaySubject<ThemeRequest>) {
+    const chunkSize = 4 * 1024 * 1024;
+    const bufferStream = new CustomBufferStream(file.buffer, chunkSize);
+    const parseMimitypeForExtension = {
+      'image/jpeg': '.jpeg',
+      'image/jpg': '.jpg',
+      'image/png': '.png',
+      'image/svg+xml': '.svg',
+    }
+
+    const extension = parseMimitypeForExtension[file.mimetype];
+
+    return new Promise((resolve, reject) => {
+      bufferStream.on('data', (chunk) => {
+        const filename = file.fieldname.concat(extension);
+        stream$.next({
+          customerId: '',
+          displayName: '',
+          backgroundColor: '',
+          textColor: '',
+          isMetadata: false,
+          filename: filename,
+          chunk: chunk
+        });
+      });
+
+      bufferStream.on('end', () => {
+        resolve(file.filename)
+      });
+
+      bufferStream.on('error', (err) => {
+        reject(err);
+      });
+    });
+  }
+
+}
+
+class CustomBufferStream extends Readable {
+  buffer: Buffer;
+  offset: number;
+  chunkSize: number;
+
+  constructor(buffer: Buffer, chunkSize: number) {
+    super({ highWaterMark: chunkSize }); // Configura o tamanho do chunk
+    this.buffer = buffer;
+    this.offset = 0;
+    this.chunkSize = chunkSize;
+  }
+
+  _read() {
+    if (this.offset < this.buffer.length) {
+      const end = Math.min(this.offset + this.chunkSize, this.buffer.length);
+
+      const copiedBuf = Uint8Array.prototype.slice.call(this.buffer);
+      const chunk = copiedBuf.slice(this.offset, end);
+      this.offset = end;
+      this.push(chunk);
+    } else {
+      this.push(null);
+    }
+  }
+}