fix: embed sqlite3.wasm in lib for production builds

packages/worker-relay/src/custom.d.ts

@@ -0,0 +1,4 @@
+declare module "*.wasm" {
+    const value: string;
+    export default value;
+  }

packages/worker-relay/src/interface.ts

@@ -3,7 +3,6 @@ import { v4 as uuid } from "uuid";
 
 export class WorkerRelayInterface {
   #worker: Worker;
-  #sqliteDir?: string;
   #commandQueue: Map<string, (v: unknown, ports: ReadonlyArray<MessagePort>) => void> = new Map();
 
   // Command timeout
@@ -12,10 +11,8 @@ export class WorkerRelayInterface {
   /**
    * Interface wrapper for worker relay
    * @param scriptPath Path to worker script or Worker script object
-   * @param sqlite3Dir Directory to search for sqlite3 depends
    */
-  constructor(scriptPath?: string | URL | Worker, sqlite3Dir?: string) {
-    this.#sqliteDir = sqlite3Dir;
+  constructor(scriptPath?: string | URL | Worker) {
     if (scriptPath instanceof Worker) {
       this.#worker = scriptPath;
     } else {
@@ -39,7 +36,7 @@ export class WorkerRelayInterface {
   }
 
   async init(databasePath: string) {
-    return await this.#workerRpc<Array<string>, boolean>("init", [databasePath, this.#sqliteDir ?? ""]);
+    return await this.#workerRpc<Array<string | undefined>, boolean>("init", [databasePath]);
   }
 
   async event(ev: NostrEvent) {

packages/worker-relay/src/sqlite-relay.ts

@@ -4,6 +4,9 @@ import { EventMetadata, NostrEvent, RelayHandler, RelayHandlerEvents, ReqFilter,
 import migrate from "./migrations";
 import { debugLog } from "./debug";
 
+// import wasm file directly, this needs to be copied from https://sqlite.org/download.html
+import SqlitePath from "./sqlite3.wasm";
+
 export class SqliteRelay extends EventEmitter<RelayHandlerEvents> implements RelayHandler {
   #sqlite?: Sqlite3Static;
   #log = (msg: string, ...args: Array<any>) => debugLog("SqliteRelay", msg, ...args);
@@ -13,11 +16,14 @@ export class SqliteRelay extends EventEmitter<RelayHandlerEvents> implements Rel
   /**
    * Initialize the SQLite driver
    */
-  async init(path: string, sqliteWasmPath?: string) {
+  async init(path: string) {
     if (this.#sqlite) return;
     this.#sqlite = await sqlite3InitModule({
-      locateFile(path, prefix) {
-        return new URL(`sqlite-wasm/jswasm/${path}`, sqliteWasmPath).href;
+      locateFile: (path, prefix) => {
+        if (path === "sqlite3.wasm") {
+          return SqlitePath;
+        }
+        return prefix + path;
       },
       print: msg => this.#log(msg),
       printErr: msg => this.#log(msg)

packages/worker-relay/src/worker.ts

@@ -80,9 +80,9 @@ globalThis.onmessage = async ev => {
           } else {
             relay = new InMemoryRelay();
           }
-          const [dbPath, wasmPath] = msg.args as Array<string>;
-          debugLog("StartInit", dbPath, wasmPath);
-          await relay.init(dbPath, wasmPath);
+          const [dbPath] = msg.args as Array<string>;
+          debugLog("StartInit", dbPath);
+          await relay.init(dbPath);
           reply(msg.id, true);
         });
         break;