fix: fallback to in-memory state when convex functions are unavailable

src/server.js

@@ -4,6 +4,7 @@ const http = require("node:http");
 const { buildApp } = require("./app");
 const { config } = require("./config");
 const { ConvexStateStore } = require("./lib/convex-state-store");
+const { InMemoryStateStore } = require("./lib/state-store");
 const { createLogger } = require("./lib/logger");
 
 function readBody(req) {
@@ -81,13 +82,23 @@ function createMutationPersister({ stateStore, logger = console }) {
 }
 
 async function createRuntime({ runtimeConfig = config, logger = console, stateStore = null } = {}) {
-  const effectiveStateStore = stateStore || new ConvexStateStore({
+  let effectiveStateStore = stateStore || new ConvexStateStore({
     deploymentUrl: runtimeConfig.convexDeploymentUrl,
     authToken: runtimeConfig.convexAuthToken,
     readFunction: runtimeConfig.convexStateQuery,
     writeFunction: runtimeConfig.convexStateMutation,
   });
-  const initialState = await effectiveStateStore.load();
+  let initialState;
+  try {
+    initialState = await effectiveStateStore.load();
+  } catch (error) {
+    logger.warn(
+      { err: error },
+      "failed to initialize configured state store; falling back to in-memory state",
+    );
+    effectiveStateStore = new InMemoryStateStore();
+    initialState = await effectiveStateStore.load();
+  }
   const persister = createMutationPersister({ stateStore: effectiveStateStore, logger });
 
   const app = buildApp({