GuidesLemon Squeezy

MongoDB Setup

Credit goes to Wahab Shaikh for this guide.

Install the package

Terminal

1npm install @lemonsqueezy/lemonsqueezy.js

Add the environment variables

.env.local

1LEMONSQUEEZY_API_KEY=
2LEMONSQUEEZY_STORE_ID=
3LEMONSQUEEZY_SIGNING_SECRET=

Create a new API key from Settings > API
Find your store ID from Settings > Stores

Just copy the number, without the #

Generate a random string for the signing secret

Create a new product from Settings > Products. Make sure to add a variant, even if you plan to have a single price.

You can get the variantId by selecting the variant and then copying the number from the URL. It follows the convention: https://app.lemonsqueezy.com/product/[productId]/variants/[variantId].

Update your config

/config.js

1stripe: {
2lemonsqueezy: {
3    plans: [
4      {
5        priceId:
6        variantId:
7          process.env.NODE_ENV === "development"
8            ? "price_1Niyy5AxyNprDp7iZIqEyD2h"
9            ? "123456"
10            : "price_456",
11            : "456789",
12        name: "Starter",
13        description: "Perfect for small projects",
14        price: 79,
15        priceAnchor: 99,
16        features: [
17          {
18            name: "NextJS boilerplate",
19          },
20          { name: "User oauth" },
21          { name: "Database" },
22          { name: "Emails" },
23        ],
24      },
25      {
26        isFeatured: true,
27        priceId:
28        variantId:
29          process.env.NODE_ENV === "development"
30            ? "price_1Niyy5AxyNprDp7iZIqEyD2h"
31            ? "123456"
32            : "price_456",
33            : "456789",
34        name: "Advanced",
35        description: "You need more power",
36        price: 99,
37        priceAnchor: 149,
38        features: [
39          {
40            name: "NextJS boilerplate",
41          },
42          { name: "User oauth" },
43          { name: "Database" },
44          { name: "Emails" },
45          { name: "1 year of updates" },
46          { name: "24/7 support" },
47        ],
48      },
49    ],
50  },

Update your /models/User.js file

/models/User.js

1import mongoose from "mongoose";
2import toJSON from "./plugins/toJSON";
3
4const userSchema = mongoose.Schema(
5  {
6    name: {
7      type: String,
8      trim: true,
9    },
10    email: {
11      type: String,
12      trim: true,
13      lowercase: true,
14      private: true,
15    },
16    image: {
17      type: String,
18    },
19    customerId: {
20      type: String,
21      validate(value) {
22        return value.includes("cus_");
23      },
24    },
25    priceId:
26    variantId: {
27      type: String,
28      validate(value) {
29        return value.includes("price_");
30      },
31    },
32    hasAccess: {
33      type: Boolean,
34      default: false,
35    },
36  },
37  {
38    timestamps: true,
39    toJSON: { virtuals: true },
40  }
41);
42
43userSchema.plugin(toJSON);
44
45export default mongoose.models.User || mongoose.model("User", userSchema);

Update your /components/Pricing.js file

/components/Pricing.js

15<div className="relative flex justify-center flex-col lg:flex-row items-center lg:items-stretch gap-8">
16  {config.stripe.plans.map((plan) => (
17    <div key={plan.priceId} className="relative w-full max-w-lg">
18  {config.lemonsqueezy.plans.map((plan) => (
19    <div key={plan.variantId} className="relative w-full max-w-lg">
20      {plan.isFeatured && (
21        <div className="absolute top-0 left-1/2 -translate-x-1/2 -translate-y-1/2 z-20">
22          <span
23            className={`badge text-xs text-primary-content font-semibold border-0 bg-primary`}
24          >
25                  POPULAR
26                </span>
27            </div>
28      )}
29
30            {plan.isFeatured && (
31              <div
32                className={`absolute -inset-[1px] rounded-[9px] bg-primary z-10`}
33              ></div>
34            )}
35
36            <div className="relative flex flex-col h-full gap-5 lg:gap-8 z-10 bg-base-100 p-8 rounded-lg">
37              <div className="flex justify-between items-center gap-4">
38                <div>
39                  <p className="text-lg lg:text-xl font-bold">{plan.name}</p>
40                  {plan.description && (
41                    <p className="text-base-content/80 mt-2">{plan.description}</p>
42                  )}
43                </div>
44              </div>
45              <div className="flex gap-2">
46                {plan.priceAnchor && (
47                  <div className="flex flex-col justify-end mb-[4px] text-lg ">
48                    <p className="relative">
49                      <span className="absolute bg-base-content h-[1.5px] inset-x-0 top-[53%]"></span>
50                      <span className="text-base-content/80">
51                        ${plan.priceAnchor}
52                      </span>
53                    </p>
54                  </div>
55                )}
56                <p className={`text-5xl tracking-tight font-extrabold`}>
57                  ${plan.price}
58                </p>
59                <div className="flex flex-col justify-end mb-[4px]">
60                  <p className="text-xs text-base-content/60 uppercase font-semibold">
61                    USD
62                  </p>
63                </div>
64              </div>
65              {plan.features && (
66                <ul className="space-y-2.5 leading-relaxed text-base flex-1">
67                  {plan.features.map((feature, i) => (
68                    <li key={i} className="flex items-center gap-2">
69                      <svg
70                        xmlns="http://www.w3.org/2000/svg"
71                        viewBox="0 0 20 20"
72                        fill="currentColor"
73                        className="w-[18px] h-[18px] opacity-80 shrink-0"
74                      >
75                        <path
76                          fillRule="evenodd"
77                          d="M16.704 4.153a.75.75 0 01.143 1.052l-8 10.5a.75.75 0 01-1.127.075l-4.5-4.5a.75.75 0 011.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 011.05-.143z"
78                          clipRule="evenodd"
79                        />
80                      </svg>
81
82                      <span>{feature.name} </span>
83                    </li>
84                  ))}
85                </ul>
86              )}
87              <div className="space-y-2">
88                <ButtonCheckout priceId={plan.priceId} />
89                <ButtonCheckout variantId={plan.variantId} />
90
91                <p className="flex items-center justify-center gap-2 text-sm text-center text-base-content/80 font-medium relative">
92                  Pay once. Access forever.
93                </p>
94              </div>
95            </div>
96          </div>
97  ))}
98</div >;

Update your /components/ButtonCheckout.js file

/components/ButtonCheckout.js

1"use client";
2
3import { useState } from "react";
4import apiClient from "@/libs/api";
5import config from "@/config";
6
7const ButtonCheckout = ({ priceId, mode = "payment" }) => {
8const ButtonCheckout = ({ variantId }) => {
9  const [isLoading, setIsLoading] = useState(false);
10
11  const handlePayment = async () => {
12    setIsLoading(true);
13
14    try {
15	  const res = await apiClient.post("/stripe/create-checkout", {
16        priceId,
17        mode,
18        successUrl: window.location.href,
19        cancelUrl: window.location.href,
20      });
21      window.location.href = res.url;
22      const { url } = await apiClient.post(
23        "/lemonsqueezy/create-checkout",
24        {
25          variantId,
26          redirectUrl: window.location.href,
27        }
28      );
29      window.location.href = url;
30    } catch (e) {
31      console.error(e);
32    }
33
34    setIsLoading(false);
35  };
36
37  return (
38    <button
39      className="btn btn-primary btn-block group"
40      onClick={() => handlePayment()}
41    >
42      {isLoading ? (
43        <span className="loading loading-spinner loading-xs"></span>
44      ) : (
45        <svg
46          className="w-5 h-5 fill-primary-content group-hover:scale-110 group-hover:-rotate-3 transition-transform duration-200"
47          viewBox="0 0 375 509"
48          fill="none"
49          xmlns="http://www.w3.org/2000/svg"
50        >
51          <path d="M249.685 14.125C249.685 11.5046 248.913 8.94218 247.465 6.75675C246.017 4.57133 243.957 2.85951 241.542 1.83453C239.126 0.809546 236.463 0.516683 233.882 0.992419C231.301 1.46815 228.917 2.69147 227.028 4.50999L179.466 50.1812C108.664 118.158 48.8369 196.677 2.11373 282.944C0.964078 284.975 0.367442 287.272 0.38324 289.605C0.399039 291.938 1.02672 294.226 2.20377 296.241C3.38082 298.257 5.06616 299.929 7.09195 301.092C9.11775 302.255 11.4133 302.867 13.75 302.869H129.042V494.875C129.039 497.466 129.791 500.001 131.205 502.173C132.62 504.345 134.637 506.059 137.01 507.106C139.383 508.153 142.01 508.489 144.571 508.072C147.131 507.655 149.516 506.503 151.432 504.757L172.698 485.394C247.19 417.643 310.406 338.487 359.975 250.894L373.136 227.658C374.292 225.626 374.894 223.327 374.882 220.99C374.87 218.653 374.243 216.361 373.065 214.341C371.887 212.322 370.199 210.646 368.17 209.482C366.141 208.318 363.841 207.706 361.5 207.707H249.685V14.125Z" />
52        </svg>
53      )}
54      Get {config?.appName}
55    </button>
56  );
57};
58
59export default ButtonCheckout;
60

Update your /components/ButtonAccount.js file

/components/ButtonAccount.js

1/* eslint-disable @next/next/no-img-element */
2"use client";
3
4import { useState } from "react";
5import { Popover, Transition } from "@headlessui/react";
6import { useSession, signOut } from "next-auth/react";
7import apiClient from "@/libs/api";
8
9const ButtonAccount = () => {
10  const { data: session, status } = useSession();
11  const [isLoading, setIsLoading] = useState(false);
12
13  const handleSignOut = () => {
14    signOut({ callbackUrl: "/" });
15  };
16  const handleBilling = async () => {
17    setIsLoading(true);
18
19    try {
20      const { url } = await apiClient.post("/stripe/create-portal", {
21        returnUrl: window.location.href,
22      });
23      const { url } = await apiClient.post("/lemonsqueezy/create-portal");
24
25      window.location.href = url;
26    } catch (e) {
27      console.error(e);
28    }
29
30    setIsLoading(false);
31  };
32
33  // Don't show anything if not authenticated (we don't have any info about the user)
34  if (status === "unauthenticated") return null;
35
36  return (
37    <Popover className="relative z-10">
38      {({ open }) => (
39        <>
40          <Popover.Button className="btn">
41            {session?.user?.image ? (
42              <img
43                src={session?.user?.image}
44                alt={session?.user?.name || "Account"}
45                className="w-6 h-6 rounded-full shrink-0"
46                referrerPolicy="no-referrer"
47                width={24}
48                height={24}
49              />
50            ) : (
51              <span className="w-6 h-6 bg-base-300 flex justify-center items-center rounded-full shrink-0">
52                {session?.user?.name?.charAt(0) ||
53                  session?.user?.email?.charAt(0)}
54              </span>
55            )}
56
57            {session?.user?.name || "Account"}
58
59            {isLoading ? (
60              <span className="loading loading-spinner loading-xs"></span>
61            ) : (
62              <svg
63                xmlns="http://www.w3.org/2000/svg"
64                viewBox="0 0 20 20"
65                fill="currentColor"
66                className={`w-5 h-5 duration-200 opacity-50 ${
67                    open ? "transform rotate-180 " : ""
68                  }`}
69              >
70                <path
71                  fillRule="evenodd"
72                  d="M5.23 7.21a.75.75 0 011.06.02L10 11.168l3.71-3.938a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z"
73                  clipRule="evenodd"
74                />
75              </svg>
76            )}
77          </Popover.Button>
78          <Transition
79            enter="transition duration-100 ease-out"
80            enterFrom="transform scale-95 opacity-0"
81            enterTo="transform scale-100 opacity-100"
82            leave="transition duration-75 ease-out"
83            leaveFrom="transform scale-100 opacity-100"
84            leaveTo="transform scale-95 opacity-0"
85          >
86            <Popover.Panel className="absolute left-0 z-10 mt-3 w-screen max-w-[16rem] transform">
87              <div className="overflow-hidden rounded-xl shadow-xl ring-1 ring-base-content ring-opacity-5 bg-base-100 p-1">
88                <div className="space-y-0.5 text-sm">
89                  <button
90                    className="flex items-center gap-2 hover:bg-base-300 duration-200 py-1.5 px-4 w-full rounded-lg font-medium"
91                    onClick={handleBilling}
92                  >
93                    <svg
94                      xmlns="http://www.w3.org/2000/svg"
95                      viewBox="0 0 20 20"
96                      fill="currentColor"
97                      className="w-5 h-5"
98                    >
99                      <path
100                        fillRule="evenodd"
101                        d="M2.5 4A1.5 1.5 0 001 5.5V6h18v-.5A1.5 1.5 0 0017.5 4h-15zM19 8.5H1v6A1.5 1.5 0 002.5 16h15a1.5 1.5 0 001.5-1.5v-6zM3 13.25a.75.75 0 01.75-.75h1.5a.75.75 0 010 1.5h-1.5a.75.75 0 01-.75-.75zm4.75-.75a.75.75 0 000 1.5h3.5a.75.75 0 000-1.5h-3.5z"
102                        clipRule="evenodd"
103                      />
104                    </svg>
105                    Billing
106                  </button>
107                  <button
108                    className="flex items-center gap-2 hover:bg-error/20 hover:text-error duration-200 py-1.5 px-4 w-full rounded-lg font-medium"
109                    onClick={handleSignOut}
110                  >
111                    <svg
112                      xmlns="http://www.w3.org/2000/svg"
113                      viewBox="0 0 20 20"
114                      fill="currentColor"
115                      className="w-5 h-5"
116                    >
117                      <path
118                        fillRule="evenodd"
119                        d="M3 4.25A2.25 2.25 0 015.25 2h5.5A2.25 2.25 0 0113 4.25v2a.75.75 0 01-1.5 0v-2a.75.75 0 00-.75-.75h-5.5a.75.75 0 00-.75.75v11.5c0 .414.336.75.75.75h5.5a.75.75 0 00.75-.75v-2a.75.75 0 011.5 0v2A2.25 2.25 0 0110.75 18h-5.5A2.25 2.25 0 013 15.75V4.25z"
120                        clipRule="evenodd"
121                      />
122                      <path
123                        fillRule="evenodd"
124                        d="M6 10a.75.75 0 01.75-.75h9.546l-1.048-.943a.75.75 0 111.004-1.114l2.5 2.25a.75.75 0 010 1.114l-2.5 2.25a.75.75 0 11-1.004-1.114l1.048-.943H6.75A.75.75 0 016 10z"
125                        clipRule="evenodd"
126                      />
127                    </svg>
128                    Logout
129                  </button>
130                </div>
131              </div>
132            </Popover.Panel>
133          </Transition>
134        </>
135      )}
136    </Popover>
137  );
138};
139
140export default ButtonAccount;

Create a /libs/lemonsqueezy.js file

/libs/lemonsqueezy.js

1import {
2  createCheckout,
3  getCustomer,
4  lemonSqueezySetup,
5} from "@lemonsqueezy/lemonsqueezy.js";
6
7// This is used to create a Lemon Squeezy Checkout for one-time payments. It's usually triggered with the <ButtonCheckout /> component. Webhooks are used to update the user's state in the database.
8export const createLemonSqueezyCheckout = async ({
9  user,
10  redirectUrl,
11  variantId,
12  discountCode,
13}) => {
14  try {
15    lemonSqueezySetup({ apiKey: process.env.LEMONSQUEEZY_API_KEY });
16
17    const storeId = process.env.LEMONSQUEEZY_STORE_ID;
18
19    const newCheckout = {
20      productOptions: {
21        redirectUrl,
22      },
23      checkoutData: {
24        discountCode,
25        email: user?.email,
26        name: user?.name,
27        custom: {
28          userId: user?._id.toString(),
29        },
30      },
31    };
32
33    const { data, error } = await createCheckout(
34      storeId,
35      variantId,
36      newCheckout
37    );
38
39    if (error) {
40      throw error;
41    }
42
43    return data.data.attributes.url;
44  } catch (e) {
45    console.error(e);
46    return null;
47  }
48};
49
50// This is used to create Customer Portal sessions, so users can manage their subscriptions (payment methods, cancel, etc..)
51export const createCustomerPortal = async ({ customerId }) => {
52  try {
53    lemonSqueezySetup({ apiKey: process.env.LEMONSQUEEZY_API_KEY });
54
55    const { data, error } = await getCustomer(customerId);
56
57    if (error) {
58      throw error;
59    }
60
61    return data.data.attributes.urls.customer_portal;
62  } catch (error) {
63    console.error(error);
64    return null;
65  }
66};

Create an API route for creating a Checkout session

/app/api/lemonsqueezy/create-checkout/route.js

1import { createLemonSqueezyCheckout } from "@/libs/lemonsqueezy";
2import connectMongo from "@/libs/mongoose";
3import { authOptions } from "@/libs/next-auth";
4import User from "@/models/User";
5import { getServerSession } from "next-auth/next";
6import { NextResponse } from "next/server";
7
8// This function is used to create a Lemon Squuezy Checkout Session (one-time payment or subscription)
9// It's called by the <ButtonCheckout /> component
10// By default, it doesn't force users to be authenticated. But if they are, it will prefill the Checkout data with their email and/or credit card
11export async function POST(req) {
12  const body = await req.json();
13
14  if (!body.variantId) {
15    return NextResponse.json(
16      { error: "Variant ID is required" },
17      { status: 400 }
18    );
19  } else if (!body.redirectUrl) {
20    return NextResponse.json(
21      { error: "Redirect URL is required" },
22      { status: 400 }
23    );
24  }
25
26  try {
27    const session = await getServerSession(authOptions);
28
29    await connectMongo();
30
31    const user = await User.findById(session?.user?.id);
32
33    const { variantId, redirectUrl } = body;
34
35    const checkoutURL = await createLemonSqueezyCheckout({
36      variantId,
37      redirectUrl,
38      // If user is logged in, this will automatically prefill Checkout data like email and/or credit card for faster checkout
39      user,
40      // If you send coupons from the frontend, you can pass it here
41      // discountCode: body.discountCode,
42    });
43
44    return NextResponse.json({ url: checkoutURL });
45  } catch (e) {
46    console.error(e);
47    return NextResponse.json({ error: e?.message }, { status: 500 });
48  }
49}
50

Create an API route for creating a Customer Portal session

/app/api/lemonsqueezy/create-portal/route.js

1import { NextResponse } from "next/server";
2import { getServerSession } from "next-auth/next";
3import { authOptions } from "@/libs/next-auth";
4import connectMongo from "@/libs/mongoose";
5import User from "@/models/User";
6import { createCustomerPortal } from "@/libs/lemonsqueezy";
7
8export async function POST() {
9  const session = await getServerSession(authOptions);
10
11  if (session) {
12    try {
13      await connectMongo();
14
15      const { id } = session.user;
16
17      const user = await User.findById(id);
18
19      if (!user?.customerId) {
20        return NextResponse.json(
21          {
22            error:
23              "You don't have a billing account yet. Make a purchase first.",
24          },
25          { status: 400 }
26        );
27      }
28
29      const url = await createCustomerPortal({
30        customerId: user.customerId,
31      });
32
33      return NextResponse.json({
34        url,
35      });
36    } catch (e) {
37      console.error(e);
38      return NextResponse.json({ error: e?.message }, { status: 500 });
39    }
40  } else {
41  // Not Signed in
42  return NextResponse.json({ error: "Not signed in" }, { status: 401 });
43  }
44}
45

Add your webhook URL on Settings > Webhooks
Create an API route for your Lemon Sqeeuzy webhook

/app/api/webhook/lemonsqueezy/route.js

1import { NextResponse } from "next/server";
2import { headers } from "next/headers";
3import connectMongo from "@/libs/mongoose";
4import crypto from "crypto";
5import config from "@/config";
6import User from "@/models/User";
7
8// This is where we receive LemonSqueezy webhook events
9// It used to update the user data, send emails, etc...
10// By default, it'll store the user in the database
11// See more: https://shipfa.st/docs/features/payments
12export async function POST(req) {
13  const secret = process.env.LEMONSQUEEZY_SIGNING_SECRET;
14  if (!secret) {
15    return new Response("LEMONSQUEEZY_SIGNING_SECRET is required.", {
16      status: 400,
17    });
18  }
19
20  await connectMongo();
21
22  // Verify the signature
23  const text = await req.text();
24
25  const hmac = crypto.createHmac("sha256", secret);
26  const digest = Buffer.from(hmac.update(text).digest("hex"), "utf8");
27  const signature = Buffer.from(headers().get("x-signature"), "utf8");
28
29  if (!crypto.timingSafeEqual(digest, signature)) {
30    return new Response("Invalid signature.", {
31      status: 400,
32    });
33  }
34
35  // Get the payload
36  const payload = JSON.parse(text);
37
38  const eventName = payload.meta.event_name;
39  const customerId = payload.data.attributes.customer_id.toString();
40
41  try {
42    switch (eventName) {
43      case "order_created": {
44        // ✅ Grant access to the product
45        const userId = payload.meta?.custom_data?.userId;
46
47        const email = payload.data.attributes.user_email;
48        const name = payload.data.attributes.user_name;
49        const variantId =
50          payload.data.attributes.first_order_item.variant_id.toString();
51
52        const plan = config.lemonsqueezy.plans.find(
53          (p) => p.variantId === variantId
54        );
55        if (!plan) {
56          throw new Error("Plan not found for variantId:", variantId);
57        }
58
59        let user;
60
61        // Get or create the user. userId is normally pass in the checkout session (clientReferenceID) to identify the user when we get the webhook event
62        if (userId) {
63          user = await User.findById(userId);
64        } else if (email) {
65          user = await User.findOne({ email });
66
67          if (!user) {
68            user = await User.create({
69              email,
70              name,
71            });
72
73            await user.save();
74          }
75        } else {
76          throw new Error("No user found");
77        }
78
79        // Update user data + Grant user access to your product. It's a boolean in the database, but could be a number of credits, etc...
80        user.variantId = variantId;
81        user.customerId = customerId;
82        user.hasAccess = true;
83        await user.save();
84
85        // Extra: send email with user link, product page, etc...
86        // try {
87        //   await sendEmail(...);
88        // } catch (e) {
89        //   console.error("Email issue:" + e?.message);
90        // }
91
92        break;
93      }
94
95      case "subscription_cancelled": {
96        // The customer subscription stopped
97        // ❌ Revoke access to the product
98
99        const user = await User.findOne({ customerId });
100
101        // Revoke access to your product
102        user.hasAccess = false;
103        await user.save();
104
105        break;
106      }
107
108      default:
109      // Unhandled event type
110    }
111  } catch (e) {
112    console.error("lemonsqueezy error: ", e.message);
113  }
114
115  return NextResponse.json({});
116}
117

Supabase Setup

Install the package