Add server sent events module

.dev/.env.example

@@ -11,3 +11,7 @@ DATABASE_NAME_PREFIX=
 # optional - defaults to 'false'
 # enable or disable the sync module
 SYNC_ENABLED=
+
+# optional - defaults to 'false'
+# enable or disable the sse module
+modules__sse__enabled=

.dev/.env.local

@@ -1,4 +1,7 @@
 # required - the information below is used to connect to the backbone
-transportLibrary__baseUrl="http://localhost:8090"
+transportLibrary__baseUrl="http://host.docker.internal:8090"
 transportLibrary__platformClientId="test"
 transportLibrary__platformClientSecret="test"
+
+modules__sse__enabled=true
+modules__sse__baseUrlOverride="http://host.docker.internal:8092"

.dev/appsettings.override.json

@@ -46,6 +46,10 @@
                     "Providers": {
                         "Dummy": {
                             "Enabled": true
+                        },
+                        "Sse": {
+                            "Enabled": true,
+                            "SseServerBaseAddress": "http://sse-server:8080"
                         }
                     }
                 }

.dev/compose.backbone.yml

@@ -18,6 +18,8 @@ services:
         condition: service_started
       database-migrator:
         condition: service_completed_successfully
+      sse-server:
+        condition: service_started
     configs:
       - source: Config
         target: app/appsettings.override.json
@@ -36,6 +38,19 @@ services:
       - source: Config
         target: app/appsettings.override.json
 
+  sse-server:
+    image: ghcr.io/nmshd/backbone-sse-server:${BACKBONE_VERSION}
+    container_name: sse-server
+    hostname: sse-server
+    ports:
+      - "8092:8080"
+    depends_on:
+      database:
+        condition: service_started
+    configs:
+      - source: Config
+        target: app/appsettings.override.json
+
   database-migrator:
     container_name: database-migrator-test
     image: ghcr.io/nmshd/backbone-database-migrator:${BACKBONE_VERSION}
@@ -59,8 +74,6 @@ services:
     environment:
       - POSTGRES_PASSWORD=Passw0rd
       - POSTGRES_DB=enmeshed
-    ports:
-      - 5432:5432
     healthcheck:
       test: ["CMD", "pg_isready", "-U", "postgres"]
       interval: 5s
@@ -72,15 +85,11 @@ services:
     hostname: azurite
     image: mcr.microsoft.com/azure-storage/azurite
     command: azurite -d /data/debug.log -l /data --blobHost "0.0.0.0" --queueHost "0.0.0.0"
-    ports:
-      - "10000:10000"
 
   rabbitmq:
     container_name: bkb-rabbitmq
     hostname: rabbitmq
     image: rabbitmq:3.12.10-management-alpine
-    ports:
-      - "5672:5672"
 
   ### seeds ###
 

.dev/compose.yml

@@ -16,6 +16,8 @@ services:
       - transportLibrary__baseUrl
       - transportLibrary__platformClientId
       - transportLibrary__platformClientSecret
+      - modules__sse__enabled=${modules__sse__enabled:-false}
+      - modules__sse__baseUrlOverride
     volumes:
       - ..:/usr/app
       - ./config.json:/config.json:ro
@@ -42,6 +44,8 @@ services:
       - transportLibrary__baseUrl
       - transportLibrary__platformClientId
       - transportLibrary__platformClientSecret
+      - modules__sse__enabled=${modules__sse__enabled:-false}
+      - modules__sse__baseUrlOverride
     volumes:
       - ..:/usr/app
       - ./config.json:/config.json:ro

.dev/config.json

@@ -1,7 +1,7 @@
 {
     "debug": true,
     "database": {
-        "connectionString": "mongodb://mongo:27017/?readPreference=primary&appname=connector&ssl=false"
+        "connectionString": "mongodb://mongo:27017"
     },
     "infrastructure": {
         "httpServer": {

.dev/scripts/clearDb.ts

@@ -3,7 +3,7 @@
 import { MongoDbConnection } from "@js-soft/docdb-access-mongo";
 
 async function clearDb() {
-    const connectionString = "mongodb://localhost:27017/?readPreference=primary&appname=clearDb&ssl=false";
+    const connectionString = "mongodb://localhost:27017";
     const dbConnection: MongoDbConnection = new MongoDbConnection(connectionString);
     await dbConnection.connect();
 

.dev/scripts/establishRelationshipAndSpamMessages.ts

@@ -0,0 +1,67 @@
+import { sleep } from "@js-soft/ts-utils";
+import { ConnectorClient, ConnectorRelationshipStatus } from "@nmshd/connector-sdk";
+
+async function run() {
+    const connector1 = ConnectorClient.create({
+        baseUrl: "http://localhost:3000",
+        apiKey: "xxx"
+    });
+
+    const connector2 = ConnectorClient.create({
+        baseUrl: "http://localhost:3001",
+        apiKey: "xxx"
+    });
+
+    const { connector1Address, connector2Address } = await establishOrReturnRelationship(connector1, connector2);
+
+    while (true) {
+        await connector1.messages.sendMessage({ recipients: [connector2Address], content: {} });
+        await sleep(2000);
+
+        await connector2.messages.sendMessage({ recipients: [connector1Address], content: {} });
+        await sleep(2000);
+    }
+}
+
+async function establishOrReturnRelationship(connector1: ConnectorClient, connector2: ConnectorClient) {
+    const identityInfo = (await connector1.account.getIdentityInfo()).result;
+
+    const relationships = (await connector1.relationships.getRelationships()).result;
+
+    if (relationships.length > 0) {
+        if (relationships[0].status === ConnectorRelationshipStatus.PENDING) {
+            await connector1.relationships.acceptRelationshipChange(relationships[0].id, relationships[0].changes[0].id);
+        }
+
+        return {
+            connector1Address: identityInfo.address,
+            connector2Address: relationships[0].peer
+        };
+    }
+
+    const template = (await connector1.relationshipTemplates.createOwnRelationshipTemplate({ expiresAt: "2099", maxNumberOfAllocations: 1, content: {} })).result;
+
+    await connector2.relationshipTemplates.loadPeerRelationshipTemplate({ reference: template.truncatedReference });
+
+    const relationship = (await connector2.relationships.createRelationship({ templateId: template.id, content: {} })).result;
+
+    await connector1.account.sync();
+
+    const accepted = (await connector1.relationships.acceptRelationshipChange(relationship.id, relationship.changes[0].id)).result;
+    console.log(accepted);
+
+    await connector2.account.sync();
+
+    return {
+        connector1Address: identityInfo.address,
+        connector2Address: accepted.peer
+    };
+}
+
+run()
+    .then(() => {
+        console.log("Script finished successfully");
+    })
+    .catch((error) => {
+        console.error("Script failed with error", error);
+    });

.vscode/tasks.json

@@ -54,6 +54,15 @@
                 "reveal": "always"
             }
         },
+        {
+            "label": "Clear Connectors",
+            "command": "docker compose -f .dev/compose.yml down -v",
+            "type": "shell",
+            "isBackground": true,
+            "presentation": {
+                "reveal": "always"
+            }
+        },
         {
             "label": "Run 1",
             "command": "docker compose -f .dev/compose.yml --env-file .dev/.env${input:envFilePostfix} up connector-1",

config/default.json

@@ -68,13 +68,6 @@
             "displayName": "Attribute Listener",
             "location": "@nmshd/runtime:AttributeListenerModule"
         },
-        "sync": {
-            "displayName": "Sync",
-            "location": "sync/SyncModule",
-            "enabled": false,
-
-            "interval": 60
-        },
         "autoAcceptRelationshipCreationChanges": {
             "displayName": "Auto Accept Relationship Creation Changes",
             "location": "autoAcceptRelationshipCreationChanges/AutoAcceptRelationshipCreationChangesModule",
@@ -121,6 +114,18 @@
             "displayName": "Message Broker Publisher",
             "location": "messageBrokerPublisher/MessageBrokerPublisherModule",
             "brokers": []
+        },
+        "sync": {
+            "displayName": "Sync",
+            "location": "sync/SyncModule",
+            "enabled": false,
+
+            "interval": 60
+        },
+        "sse": {
+            "enabled": false,
+            "displayName": "Server Sent Events",
+            "location": "sse/SseModule"
         }
     }
 }

package.json

@@ -78,6 +78,7 @@
         "axios": "^1.7.2",
         "compression": "1.7.4",
         "cors": "2.8.5",
+        "eventsource": "^2.0.2",
         "express": "4.19.2",
         "helmet": "7.1.0",
         "json-stringify-safe": "5.0.1",
@@ -103,6 +104,7 @@
         "@types/amqplib": "^0.10.5",
         "@types/compression": "^1.7.5",
         "@types/cors": "^2.8.17",
+        "@types/eventsource": "^1.1.15",
         "@types/express": "4.17.21",
         "@types/jest": "^29.5.12",
         "@types/jest-json-schema": "^6.1.4",

src/ConnectorRuntime.ts

@@ -230,6 +230,10 @@ export class ConnectorRuntime extends Runtime<ConnectorRuntimeConfig> {
         };
     }
 
+    public async getBackboneAuthenticationToken(): Promise<string> {
+        return await this.accountController.authenticator.getToken();
+    }
+
     protected async loadModule(moduleConfiguration: ModuleConfiguration): Promise<void> {
         const connectorModuleConfiguration = moduleConfiguration as ConnectorRuntimeModuleConfiguration;
 
@@ -304,10 +308,16 @@ export class ConnectorRuntime extends Runtime<ConnectorRuntimeConfig> {
     }
 
     protected async stop(): Promise<void> {
-        try {
-            await super.stop();
-        } catch (e) {
-            this.logger.error(e);
+        if (this.isStarted) {
+            try {
+                await super.stop();
+            } catch (e) {
+                this.logger.error(e);
+            }
+        } else if (this.connectorMode === "debug") {
+            this.logger.warn("It seemed like the connector runtime didn't do a proper startup. Closing infrastructure.");
+
+            await this.stopInfrastructure();
         }
 
         try {