feat: Support for the DAPR_HTTP_ENDPOINT and DAPR_GRPC_ENDPOINT environment variables. Adds support for DAPR_API_TOKEN to gRPC client

.gitignore

@@ -1,5 +1,5 @@
 ### vscode ###
-.vscode/*
+.vscode
 !.vscode/settings.json
 !.vscode/tasks.json
 !.vscode/launch.json
@@ -144,4 +144,11 @@ temp/
 build/
 
 # version file is auto-generated
-src/version.ts
+src/version.ts
+
+# OSX
+/.DS_Store
+
+# JetBrains
+/.idea
+

daprdocs/content/en/js-sdk-docs/js-client/_index.md

@@ -77,6 +77,22 @@ dapr run --app-id example-sdk --app-protocol grpc -- npm run start
 npm run start:dapr-grpc
 ```
 
+### Environment Variables
+
+You can use the `DAPR_HTTP_ENDPOINT` and `DAPR_GRPC_ENDPOINT` environment variables to set the Dapr Sidecar's HTTP and gRPC endpoints respectively. When these variables are set, the `daprHost` and `daprPort` don't have to be passed to the constructor, the client will parse them automatically out of the provided endpoints.
+
+```typescript
+import { DaprClient, CommunicationProtocol } from "@dapr/dapr";
+
+// Using HTTP, when DAPR_HTTP_ENDPOINT is set
+const client = new DaprClient();
+
+// Using gRPC, when DAPR_GRPC_ENDPOINT is set
+const client = new DaprClient({ communicationProtocol: CommunicationProtocol.GRPC });
+```
+
+If the environment variables are set, but `daprHost` and `daprPort` values are passed to the constructor, the latter will take precedence over the environment variables.
+
 ## General
 
 ### Increasing Body Size

package.json

@@ -9,9 +9,10 @@
     "test:load:http": "TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol http --app-port 50001 --dapr-http-port 50000 --components-path ./test/components -- npm run test:load 'test/load'",
     "test:e2e": "jest --runInBand --detectOpenHandles",
     "test:e2e:all": "npm run test:e2e:http; npm run test:e2e:grpc; npm run test:e2e:common",
-    "test:e2e:grpc": "npm run test:e2e:grpc:client && npm run test:e2e:grpc:server",
-    "test:e2e:grpc:client": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol grpc --app-port 50001 --dapr-grpc-port 50000 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/grpc/(client).test.ts' ]",
-    "test:e2e:grpc:server": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol grpc --app-port 50001 --dapr-grpc-port 50000 --dapr-http-max-request-size 10 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/grpc/(server).test.ts' ]",
+    "test:e2e:grpc": "npm run test:e2e:grpc:client && npm run test:e2e:grpc:server && npm run test:e2e:grpc:clientWithApiToken",
+    "test:e2e:grpc:client": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol grpc --app-port 50001 --dapr-grpc-port 50000 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/grpc/*client.test.ts' ]",
+    "test:e2e:grpc:clientWithApiToken": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 DAPR_API_TOKEN=test dapr run --app-id test-suite --app-protocol grpc --app-port 50001 --dapr-grpc-port 50000 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/grpc/clientWithApiToken.test.ts' ]",
+    "test:e2e:grpc:server": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol grpc --app-port 50001 --dapr-grpc-port 50000 --dapr-http-max-request-size 10 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/grpc/*server.test.ts' ]",
     "test:e2e:http": "npm run test:e2e:http:client && npm run test:e2e:http:server && npm run test:e2e:http:actors",
     "test:e2e:http:client": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol http --app-port 50001 --dapr-http-port 50000 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/http/(client).test.ts' ]",
     "test:e2e:http:server": "npm run prebuild && TEST_SECRET_1=secret_val_1 TEST_SECRET_2=secret_val_2 dapr run --app-id test-suite --app-protocol http --app-port 50001 --dapr-http-port 50000 --dapr-http-max-request-size 10 --components-path ./test/components -- jest --runInBand --detectOpenHandles --testMatch [ '**/test/e2e/http/(server).test.ts' ]",

src/implementation/Client/GRPCClient/GRPCClient.ts

@@ -28,15 +28,18 @@
   private readonly client: GrpcDaprClient;
   private readonly clientCredentials: grpc.ChannelCredentials;
   private readonly logger: Logger;
+  private readonly grpcClientOptions: Partial<grpc.ClientOptions>;
 
   constructor(options: DaprClientOptions) {
     this.options = options;
     this.clientCredentials = this.generateCredentials();
+    this.grpcClientOptions = this.generateChannelOptions();
+
     this.logger = new Logger("GRPCClient", "GRPCClient", options.logger);
     this.isInitialized = false;
 
     this.logger.info(`Opening connection to ${this.options.daprHost}:${this.options.daprPort}`);
-    this.client = this.generateClient(this.options.daprHost, this.options.daprPort, this.clientCredentials);
+    this.client = this.generateClient(this.options.daprHost, this.options.daprPort);
   }
 
   async getClient(requiresInitialization = true): Promise<GrpcDaprClient> {
@@ -52,8 +55,20 @@
     return this.clientCredentials;
   }
 
-  private generateChannelOptions(): Record<string, string | number> {
-    const options: Record<string, string | number> = {};
+  getGrpcClientOptions(): grpc.ClientOptions {
+    return this.grpcClientOptions;
+  }
+
+  private generateCredentials(): grpc.ChannelCredentials {
+    if (this.options.daprHost.startsWith("https")) {
+      return grpc.ChannelCredentials.createSsl();
+    }
+    return grpc.ChannelCredentials.createInsecure();
+  }
+
+  private generateChannelOptions(): Partial<grpc.ClientOptions> {
+    // const options: Record<string, string | number> = {};
+    let options: Partial<grpc.ClientOptions> = {};
 
     // See: GRPC_ARG_MAX_SEND_MESSAGE_LENGTH, it is in bytes
     // https://grpc.github.io/grpc/core/group__grpc__arg__keys.html#ga813f94f9ac3174571dd712c96cdbbdc1
@@ -67,20 +82,48 @@
     // Add user agent
     options["grpc.primary_user_agent"] = "dapr-sdk-js/v" + SDK_VERSION;
 
+    // Add interceptors if we have an API token
+    if (this.options.daprApiToken !== "") {
+      options = {
+        interceptors: [this.generateInterceptors()],
+        ...options,
+      };
+    }
+
     return options;
   }
 
-  private generateClient(host: string, port: string, credentials: grpc.ChannelCredentials): GrpcDaprClient {
-    const options = this.generateChannelOptions();
-    const client = new GrpcDaprClient(`${host}:${port}`, credentials, options);
+  private generateClient(host: string, port: string): GrpcDaprClient {
+    return new GrpcDaprClient(
+      GRPCClient.getEndpoint(host, port),
+      this.getClientCredentials(),
+      this.getGrpcClientOptions(),
+    );
+  }
 
-    return client;
+  // The grpc client doesn't allow http:// or https:// for grpc connections,
+  // so we need to remove it, if it exists
+  static getEndpoint(host: string, port: string): string {
+    let endpoint = `${host}:${port}`;
+    const parts = endpoint.split("://");
+    if (parts.length > 1 && parts[0].startsWith("http")) {
+      endpoint = parts[1];
+    }
+
+    return endpoint;
   }
 
-  // @todo: look into making secure credentials
-  private generateCredentials(): grpc.ChannelCredentials {
-    const credsChannel = grpc.ChannelCredentials.createInsecure();
-    return credsChannel;
+  private generateInterceptors(): (options: any, nextCall: any) => grpc.InterceptingCall {
+    return (options: any, nextCall: any) => {
+      return new grpc.InterceptingCall(nextCall(options), {
+        start: (metadata, listener, next) => {
+          if (metadata.get("dapr-api-token").length == 0) {
+            metadata.add("dapr-api-token", this.options.daprApiToken as grpc.MetadataValue);
+          }
+          next(metadata, listener);
+        },
+      });
+    };
   }
 
   setIsInitialized(isInitialized: boolean): void {

src/implementation/Client/GRPCClient/GRPCClientProxy.ts

@@ -60,7 +60,11 @@
       this.grpcClientOptions.interceptors = [];
     }
 
-    this.grpcClientOptions.interceptors = [...this.generateInterceptors(), ...this.grpcClientOptions.interceptors];
+    this.grpcClientOptions.interceptors = [
+      ...this.generateInterceptors(),
+      ...(this.grpcClient.getGrpcClientOptions().interceptors ?? []),
+      ...this.grpcClientOptions.interceptors,
+    ];
 
     const clientCustom = new this.clsProxy(
       `${this.grpcClient.options.daprHost}:${this.grpcClient.options.daprPort}`,

src/utils/Client.util.ts

@@ -30,7 +30,7 @@
 import { LoggerOptions } from "../types/logger/LoggerOptions";
 import { StateConsistencyEnum } from "../enum/StateConsistency.enum";
 import { StateConcurrencyEnum } from "../enum/StateConcurrency.enum";
-import { URLSearchParams } from "url";
+import { URL, URLSearchParams } from "url";
 /**
  * Adds metadata to a map.
  * @param map Input map
@@ -253,24 +253,91 @@
 /**
  * Prepares DaprClientOptions for use by the DaprClient/DaprServer.
  * If the user does not provide a value for a mandatory option, the default value is used.
- * @param clientoptions DaprClientOptions
+ * @param clientOptions DaprClientOptions
  * @param defaultCommunicationProtocol CommunicationProtocolEnum
+ * @param defaultLoggerOptions
  * @returns DaprClientOptions
  */
 export function getClientOptions(
-  clientoptions: Partial<DaprClientOptions> | undefined,
+  clientOptions: Partial<DaprClientOptions> | undefined,
   defaultCommunicationProtocol: CommunicationProtocolEnum,
   defaultLoggerOptions: LoggerOptions | undefined,
 ): DaprClientOptions {
-  const clientCommunicationProtocol = clientoptions?.communicationProtocol ?? defaultCommunicationProtocol;
+  const clientCommunicationProtocol = clientOptions?.communicationProtocol ?? defaultCommunicationProtocol;
+
+  // We decide the host/port/endpoint here
+  let daprEndpoint = "";
+  if (clientCommunicationProtocol == CommunicationProtocolEnum.HTTP) {
+    daprEndpoint = Settings.getDefaultHttpEndpoint();
+  } else if (clientCommunicationProtocol == CommunicationProtocolEnum.GRPC) {
+    daprEndpoint = Settings.getDefaultGrpcEndpoint();
+  }
+
+  let host = Settings.getDefaultHost();
+  let port = Settings.getDefaultPort(clientCommunicationProtocol);
+
+  if (clientOptions?.daprHost || clientOptions?.daprPort) {
+    host = clientOptions?.daprHost ?? host;
+    port = clientOptions?.daprPort ?? port;
+  } else if (daprEndpoint != "") {
+    const [scheme, fqdn, p] = parseEndpoint(daprEndpoint);
+    host = `${scheme}://${fqdn}`;
+    port = p;
+  }
+
   return {
-    daprHost: clientoptions?.daprHost ?? Settings.getDefaultHost(),
-    daprPort: clientoptions?.daprPort ?? Settings.getDefaultPort(clientCommunicationProtocol),
+    daprHost: host,
+    daprPort: port,
     communicationProtocol: clientCommunicationProtocol,
-    isKeepAlive: clientoptions?.isKeepAlive,
-    logger: clientoptions?.logger ?? defaultLoggerOptions,
-    actor: clientoptions?.actor,
-    daprApiToken: clientoptions?.daprApiToken,
-    maxBodySizeMb: clientoptions?.maxBodySizeMb,
+    isKeepAlive: clientOptions?.isKeepAlive,
+    logger: clientOptions?.logger ?? defaultLoggerOptions,
+    actor: clientOptions?.actor,
+    daprApiToken: clientOptions?.daprApiToken,
+    maxBodySizeMb: clientOptions?.maxBodySizeMb,
   };
 }
+
+/**
+ * Scheme, fqdn and port
+ */
+type EndpointTuple = [string, string, string];
+
+/**
+ * Parses an endpoint to scheme, fqdn and port
+ * Examples:
+ *  - http://localhost:3500 -> [http, localhost, 3500]
+ *  - localhost:3500 -> [http, localhost, 3500]
+ *  - :3500 -> [http, localhost, 3500]
+ *  - localhost -> [http, localhost, 80]
+ *  - https://localhost:3500 -> [https, localhost, 3500]
+ *  - [::1]:3500 -> [http, ::1, 3500]
+ *  - [::1] -> [http, ::1, 80]
+ *  - http://[2001:db8:1f70:0:999:de8:7648:6e8]:5000 -> [http, 2001:db8:1f70:0:999:de8:7648:6e8, 5000]
+ * @throws Error if the address is invalid
+ * @param address Endpoint address
+ * @returns EndpointTuple (scheme, fqdn, port)
+ */
+export function parseEndpoint(address: string): EndpointTuple {
+  // Prefix with a scheme and host when they're not present,
+  // because the URL library won't parse it otherwise
+  if (address.startsWith(":")) {
+    address = "http://localhost" + address;
+  }
+  if (!address.includes("://")) {
+    address = "http://" + address;
+  }
+
+  let scheme, fqdn, port: string;
+
+  try {
+    const myURL = new URL(address);
+    scheme = myURL.protocol.replace(":", "");
+    fqdn = myURL.hostname.replace("[", "");
+    fqdn = fqdn.replace("]", "");
+    port = myURL.port || (myURL.protocol == "https:" ? "443" : "80");
+  } catch (error) {
+    throw new Error(`Invalid address: ${address}`);
+  }
+
+  return [scheme, fqdn, port];
+}

src/utils/Settings.util.ts

@@ -20,6 +20,8 @@ export class Settings {
   private static readonly defaultHttpPort: string = "3500";
   private static readonly defaultGrpcAppPort: string = "50000";
   private static readonly defaultGrpcPort: string = "50001";
+  private static readonly defaultHttpEndpoint: string = "";
+  private static readonly defaultGrpcEndpoint: string = "";
   private static readonly defaultCommunicationProtocol: CommunicationProtocolEnum = CommunicationProtocolEnum.HTTP;
   private static readonly defaultKeepAlive: boolean = true;
   private static readonly defaultStateGetBulkParallelism: number = 10;
@@ -85,6 +87,14 @@ export class Settings {
     return process.env.APP_PORT ?? Settings.defaultGrpcAppPort;
   }
 
+  static getDefaultHttpEndpoint(): string {
+    return process.env.DAPR_HTTP_ENDPOINT || Settings.defaultHttpEndpoint;
+  }
+
+  static getDefaultGrpcEndpoint(): string {
+    return process.env.DAPR_GRPC_ENDPOINT || Settings.defaultGrpcEndpoint;
+  }
+
   /**
    * Gets the default port that the application is listening on.
    * @param communicationProtocolEnum communication protocol