api(@deltachat/stdio-rpc-server): also export a class

This is convenient for bots and libs for bots, so they can extend from this class directly

deltachat-rpc-server/npm-package/index.d.ts

@@ -35,6 +35,13 @@ export interface StartOptions {
  */
 export function startDeltaChat(directory: string, options?: Partial<SearchOptions & StartOptions> ): DeltaChatOverJsonRpcServer
 
+export class DeltaChatOverJsonRpc extends StdioDeltaChat {
+  constructor(
+    directory: string,
+    options?: Partial<SearchOptions & StartOptions>
+  );
+  readonly pathToServerBinary: string;
+}
 
 export namespace FnTypes {
     export type getRPCServerPath = typeof getRPCServerPath

deltachat-rpc-server/npm-package/index.js

@@ -69,6 +69,16 @@ import { StdioDeltaChat } from "@deltachat/jsonrpc-client";
 
 /** @type {import("./index").FnTypes.startDeltaChat} */
 export function startDeltaChat(directory, options = {}) {
+  return new DeltaChatOverJsonRpc(directory, options);
+}
+
+export class DeltaChatOverJsonRpc extends StdioDeltaChat {
+  /**
+   *
+   * @param {string} directory
+   * @param {Partial<import("./index").SearchOptions & import("./index").StartOptions>} options
+   */
+  constructor(directory, options = {}) {
     const pathToServerBinary = getRPCServerPath(options);
     const server = spawn(pathToServerBinary, {
       env: {
@@ -79,7 +89,9 @@ export function startDeltaChat(directory, options = {}) {
     });
 
     server.on("error", (err) => {
-    throw new Error(FAILED_TO_START_SERVER_EXECUTABLE(pathToServerBinary, err));
+      throw new Error(
+        FAILED_TO_START_SERVER_EXECUTABLE(pathToServerBinary, err)
+      );
     });
     let shouldClose = false;
 
@@ -90,19 +102,15 @@ export function startDeltaChat(directory, options = {}) {
       throw new Error("Server quit");
     });
 
-  /** @type {import('./index').DeltaChatOverJsonRpcServer} */
+    super(server.stdin, server.stdout, true);
-  //@ts-expect-error
-  const dc = new StdioDeltaChat(server.stdin, server.stdout, true);
 
-  dc.close = () => {
+    this.close = () => {
       shouldClose = true;
       if (!server.kill()) {
         console.log("server termination failed");
       }
     };
 
-  //@ts-expect-error
+    this.pathToServerBinary = pathToServerBinary;
-  dc.pathToServerBinary = pathToServerBinary;
+  }
-
-  return dc;
 }