Allow querying customers by externalId

apps/web/app/api/customers/[id]/route.ts

@@ -14,10 +14,15 @@ export const GET = withWorkspace(
   async ({ workspace, params }) => {
     const { id } = params;
 
-    const customer = await getCustomerOrThrow({
-      id,
-      workspaceId: workspace.id,
-    });
+    const customer = await getCustomerOrThrow(
+      {
+        id,
+        workspaceId: workspace.id,
+      },
+      {
+        expand: ["link"],
+      },
+    );
 
     return NextResponse.json(CustomerSchema.parse(customer));
   },
@@ -35,32 +40,29 @@ export const PATCH = withWorkspace(
       await parseRequestBody(req),
     );
 
-    await getCustomerOrThrow({
+    const customer = await getCustomerOrThrow({
       id,
       workspaceId: workspace.id,
     });
 
     try {
-      const customer = await prisma.customer.update({
+      const updatedCustomer = await prisma.customer.update({
         where: {
-          id,
+          id: customer.id,
         },
         data: { name, email, avatar, externalId },
+        include: {
+          link: true,
+        },
       });
 
-      return NextResponse.json(CustomerSchema.parse(customer));
+      return NextResponse.json(CustomerSchema.parse(updatedCustomer));
     } catch (error) {
       if (error.code === "P2002") {
         throw new DubApiError({
           code: "conflict",
           message: "A customer with this external ID already exists.",
         });
-      } else if (error.code === "P2025") {
-        throw new DubApiError({
-          code: "not_found",
-          message:
-            "Customer not found. Make sure you're using the correct external ID.",
-        });
       }
 
       throw new DubApiError({
@@ -79,34 +81,20 @@ export const DELETE = withWorkspace(
   async ({ workspace, params }) => {
     const { id } = params;
 
-    await getCustomerOrThrow({
+    const customer = await getCustomerOrThrow({
       id,
       workspaceId: workspace.id,
     });
 
-    try {
-      await prisma.customer.delete({
-        where: {
-          id,
-        },
-      });
-
-      return NextResponse.json({
-        id,
-      });
-    } catch (error) {
-      if (error.code === "P2025") {
-        throw new DubApiError({
-          code: "not_found",
-          message: "Customer not found",
-        });
-      }
+    await prisma.customer.delete({
+      where: {
+        id: customer.id,
+      },
+    });
 
-      throw new DubApiError({
-        code: "unprocessable_entity",
-        message: error.message,
-      });
-    }
+    return NextResponse.json({
+      id: customer.id,
+    });
   },
   {
     requiredAddOn: "conversion",

apps/web/app/api/customers/route.ts

@@ -48,6 +48,9 @@ export const POST = withWorkspace(
           projectId: workspace.id,
           projectConnectId: workspace.stripeConnectId,
         },
+        include: {
+          link: true,
+        },
       });
 
       return NextResponse.json(CustomerSchema.parse(customer), {

apps/web/app/api/stripe/integration/webhook/customer-created.ts

@@ -35,8 +35,8 @@ export async function customerCreated(event: Stripe.Event) {
     },
   });
 
-  if (!link) {
-    return `Link with ID ${linkId} not found, skipping...`;
+  if (!link || !link.projectId) {
+    return `Link with ID ${linkId} not found or does not have a project, skipping...`;
   }
 
   // Check the customer is not already created
@@ -61,15 +61,11 @@ export async function customerCreated(event: Stripe.Event) {
       stripeCustomerId: stripeCustomer.id,
       projectConnectId: stripeAccountId,
       externalId,
+      projectId: link.projectId,
       linkId,
       clickId,
       clickedAt: new Date(clickData.timestamp + "Z"),
       country: clickData.country,
-      project: {
-        connect: {
-          stripeConnectId: stripeAccountId,
-        },
-      },
     },
   });
 

apps/web/lib/api/customers/get-customer-or-throw.ts

@@ -1,21 +1,37 @@
 import { prisma } from "@dub/prisma";
 import { DubApiError } from "../errors";
 
-export const getCustomerOrThrow = async ({
-  id,
-  workspaceId,
-}: {
-  id: string;
-  workspaceId: string;
-}) => {
+export const getCustomerOrThrow = async (
+  {
+    id,
+    workspaceId,
+  }: {
+    id: string;
+    workspaceId: string;
+  },
+  { expand }: { expand?: ("link" | "project")[] } = {},
+) => {
   const customer = await prisma.customer.findUnique({
-    where: { id },
+    where: {
+      ...(id.startsWith("ext_")
+        ? {
+            projectId_externalId: {
+              projectId: workspaceId,
+              externalId: id.replace("ext_", ""),
+            },
+          }
+        : { id }),
+    },
+    include: {
+      link: expand?.includes("link"),
+    },
   });
 
   if (!customer || customer.projectId !== workspaceId) {
     throw new DubApiError({
       code: "not_found",
-      message: "Customer not found.",
+      message:
+        "Customer not found. Make sure you're using the correct customer ID (e.g. `cus_3TagGjzRzmsFJdH8od2BNCsc`) or external ID (has to be prefixed with `ext_`).",
     });
   }
 

apps/web/lib/zod/schemas/customers.ts

@@ -37,6 +37,13 @@ export const CustomerSchema = z.object({
   avatar: z.string().nullish().describe("Avatar URL of the customer."),
   country: z.string().nullish().describe("Country of the customer."),
   createdAt: z.date().describe("The date the customer was created."),
+  link: LinkSchema.pick({
+    id: true,
+    domain: true,
+    key: true,
+    shortLink: true,
+    programId: true,
+  }).nullish(),
 });
 
 export const CUSTOMERS_MAX_PAGE_SIZE = 100;

apps/web/tests/customers/index.test.ts

@@ -19,6 +19,7 @@ const expectedCustomer = {
   email: customerRecord.email,
   avatar: customerRecord.avatar,
   country: null,
+  link: null,
   createdAt: expect.any(String),
 };
 

packages/prisma/schema/customer.prisma

@@ -4,22 +4,27 @@ model Customer {
   email            String?
   avatar           String?   @db.LongText
   externalId       String?
+  stripeCustomerId String?   @unique
+
   linkId           String?
   clickId          String?
   clickedAt        DateTime?
   country          String?
-  project          Project   @relation(fields: [projectId], references: [id], onDelete: Cascade)
+
   projectId        String
   projectConnectId String?
-  stripeCustomerId String?   @unique
   createdAt        DateTime  @default(now())
   updatedAt        DateTime  @updatedAt
 
+
+  project          Project   @relation(fields: [projectId], references: [id], onDelete: Cascade)
+  link             Link?     @relation(fields: [linkId], references: [id])
   sales Sale[]
 
   @@unique([projectId, externalId])
   @@unique([projectConnectId, externalId])
-  @@index(projectId)
-  @@index(projectConnectId)
-  @@index(externalId)
+  @@index([projectId])
+  @@index([projectConnectId])
+  @@index([externalId])
+  @@index([linkId])
 }

packages/prisma/schema/link.prisma

@@ -68,6 +68,7 @@ model Link {
 
   programId String?
   program   Program? @relation(fields: [programId], references: [id])
+  customers Customer[]
 
   @@unique([domain, key])
   @@unique([projectId, externalId])