feat(cli): support Polar payments with Convex

apps/cli/src/helpers/core/post-installation.ts

@@ -107,10 +107,6 @@ export async function displayPostInstallInstructions(
     : "";
   const clerkInstructions =
     config.auth === "clerk" ? getClerkInstructions(frontend || [], backend, api) : "";
-  const polarInstructions =
-    config.payments === "polar" && config.auth === "better-auth"
-      ? getPolarInstructions(backend)
-      : "";
   const alchemyDeployInstructions = getAlchemyDeployInstructions(
     runCmd,
     webDeploy,
@@ -135,6 +131,10 @@ export async function displayPostInstallInstructions(
     isConvex && config.auth === "better-auth"
       ? getBetterAuthConvexInstructions(hasWeb ?? false, webPort, packageManager)
       : "";
+  const polarInstructions =
+    config.payments === "polar" && config.auth === "better-auth"
+      ? getPolarInstructions(backend, packageManager)
+      : "";
 
   const bunWebNativeWarning =
     packageManager === "bun" && hasNative && hasWeb ? getBunWebNativeWarning() : "";
@@ -572,7 +572,21 @@ function getBetterAuthConvexInstructions(hasWeb: boolean, webPort: string, packa
   );
 }
 
-function getPolarInstructions(backend: Backend) {
+function getPolarInstructions(backend: Backend, packageManager: string) {
+  if (backend === "convex") {
+    const cmd = packageManager === "npm" ? "npx" : packageManager;
+    return (
+      `${pc.bold("Polar Payments Setup:")}\n` +
+      `${pc.cyan("•")} Create a Polar organization token, webhook secret, and product in ${pc.underline("https://sandbox.polar.sh/")}\n` +
+      `${pc.cyan("•")} Set the Convex env vars from ${pc.white("packages/backend")}:\n` +
+      `${pc.white("   cd packages/backend")}\n` +
+      `${pc.white(`   ${cmd} convex env set POLAR_ORGANIZATION_TOKEN your_polar_token`)}\n` +
+      `${pc.white(`   ${cmd} convex env set POLAR_WEBHOOK_SECRET your_polar_webhook_secret`)}\n` +
+      `${pc.white(`   Optional: ${cmd} convex env set POLAR_SERVER production`)}\n` +
+      `${pc.cyan("•")} Configure a Polar webhook to ${pc.white("https://<your-convex-site-url>/polar/events")}`
+    );
+  }
+
   const envPath = backend === "self" ? "apps/web/.env" : "apps/server/.env";
   return `${pc.bold("Polar Payments Setup:")}\n${pc.cyan("•")} Get access token & product ID from ${pc.underline("https://sandbox.polar.sh/")}\n${pc.cyan("•")} Set POLAR_ACCESS_TOKEN in ${envPath}`;
 }

apps/cli/src/prompts/payments.ts

@@ -1,25 +1,21 @@
 import { DEFAULT_CONFIG } from "../constants";
 import type { Auth, Backend, Frontend, Payments } from "../types";
-import { splitFrontends } from "../utils/compatibility-rules";
 import { UserCancelledError } from "../utils/errors";
 import { isCancel, navigableSelect } from "./navigable";
 
 export async function getPaymentsChoice(
   payments?: Payments,
   auth?: Auth,
   backend?: Backend,
-  frontends?: Frontend[],
+  _frontends?: Frontend[],
 ) {
   if (payments !== undefined) return payments;
 
   if (backend === "none") {
     return "none" as Payments;
   }
 
-  const isPolarCompatible =
-    auth === "better-auth" &&
-    backend !== "convex" &&
-    (frontends?.length === 0 || splitFrontends(frontends).web.length > 0);
+  const isPolarCompatible = auth === "better-auth";
 
   if (!isPolarCompatible) {
     return "none" as Payments;

apps/cli/src/utils/compatibility-rules.ts

@@ -400,7 +400,7 @@ export function validatePaymentsCompatibility(
   payments: Payments | undefined,
   auth: Auth | undefined,
   _backend: Backend | undefined,
-  frontends: Frontend[] = [],
+  _frontends: Frontend[] = [],
 ): ValidationResult {
   if (!payments || payments === "none") return Result.ok(undefined);
 
@@ -410,13 +410,6 @@ export function validatePaymentsCompatibility(
         "Polar payments requires Better Auth. Please use '--auth better-auth' or choose a different payments provider.",
       );
     }
-
-    const { web } = splitFrontends(frontends);
-    if (web.length === 0 && frontends.length > 0) {
-      return validationErr(
-        "Polar payments requires a web frontend or no frontend. Please select a web frontend or choose a different payments provider.",
-      );
-    }
   }
 
   return Result.ok(undefined);