create subscribe form

README.md

@@ -18,7 +18,14 @@
 
 1. (Recommended) Use VSCode and install the recommended extensions
 2. Run `npm run install` to install all of the dependencies
-3. Create a `.env.production.local` file and put the following contents in it
+3. Create a `.env.local` file and put the following keys in it
+
+   ```shell
+   BEEHIIV_PUBLICATION_ID="<beehiiv publication id>"
+   BEEHIIV_API_KEY="<beehiiv api key>"
+   ```
+
+4. Create a `.env.production.local` file and put the following contents in it
 
    ```.env
    NEXT_PUBLIC_VERCEL_URL=ryanclements.dev

app/api/subscribe/route.ts

@@ -0,0 +1,76 @@
+/* eslint-disable no-console */
+
+export async function POST(request: Request): Promise<Response> {
+  const publicationId = process.env.BEEHIIV_PUBLICATION_ID
+  if (!publicationId) {
+    console.error('Must have BEEHIIV_PUBLICATION_ID defined')
+    return Response.json(
+      {
+        message: 'Oops! Something went wrong'
+      },
+      {
+        status: 500
+      }
+    )
+  }
+  const apiKey = process.env.BEEHIIV_API_KEY
+  if (!apiKey) {
+    console.error('Must have BEEHIIV_API_KEY defined')
+    return Response.json(
+      {
+        message: 'Oops! Something went wrong'
+      },
+      {
+        status: 500
+      }
+    )
+  }
+
+  const { email, referringUrl } = await request.json()
+  if (!email) {
+    return Response.json(
+      {
+        message: 'Please submit a valid email'
+      },
+      {
+        status: 400
+      }
+    )
+  }
+  const url = new URL(referringUrl)
+  // https://developers.beehiiv.com/docs/v2/1a77a563675ee-create
+  const response = await fetch(
+    `https://api.beehiiv.com/v2/publications/${publicationId}/subscriptions`,
+    {
+      method: 'POST',
+      headers: {
+        Authorization: `Bearer ${apiKey}`,
+        'Content-Type': 'application/json',
+        Accept: 'application/json'
+      },
+      body: JSON.stringify({
+        email,
+        reactivate_existing: true,
+        send_welcome_email: true,
+        utm_source: url.searchParams.get('ref') || url.host,
+        referring_site: referringUrl,
+        utm_medium: url.host
+      })
+    }
+  )
+  if (!response.ok) {
+    console.error(await response.json())
+    return Response.json(
+      {
+        message: 'Oops! Something went wrong.'
+      },
+      {
+        status: 500
+      }
+    )
+  } else {
+    return Response.json({
+      message: "You've been subscribed!"
+    })
+  }
+}

components/pages/posts/[slug]/SubscribeForm.tsx

@@ -0,0 +1,70 @@
+'use client'
+
+import { useState } from 'react'
+
+interface FormState {
+  ok: boolean
+  message: string
+}
+
+const initialState: FormState = {
+  ok: true,
+  message: ''
+}
+
+export function SubscribeForm(): JSX.Element {
+  const [formState, setFormState] = useState(initialState)
+  return (
+    <form
+      className="card mx-auto flex flex-col gap-4 bg-surface-base-elevation-100 text-on-surface-base"
+      onSubmit={async e => {
+        e.preventDefault()
+        const email = e.currentTarget.email.value
+        const res = await fetch('/api/subscribe', {
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json'
+          },
+          body: JSON.stringify({ email, referringUrl: window.location.href })
+        })
+        const { message } = await res.json()
+        setFormState({
+          ok: res.ok,
+          message
+        })
+      }}
+    >
+      <h2 className="text-xl">
+        Subscribe to receive more like this in your inbox.
+      </h2>
+      <p className="text-on-surface-base-muted">
+        No spam <span className="italic">ever.</span>
+      </p>
+      <div className="mx-auto flex gap-4">
+        <label htmlFor="email" className="sr-only">
+          Email
+        </label>
+        <input
+          required
+          type="text"
+          name="email"
+          className="overflow-hidden rounded-md border border-borderColor bg-surface-base px-3 py-2 text-left text-sm shadow-sm focus:border-borderColor-focus focus:outline-none focus:ring-1 focus:ring-ringColor-focus"
+          placeholder="Enter your email"
+        />
+        <button className="rounded-md bg-accent-400 px-3 py-2 text-sm text-on-surface-accent shadow-sm hover:bg-surface-accent-hover focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-surface-accent">
+          Subscribe
+        </button>
+      </div>
+      {formState.message && (
+        <p
+          aria-live="polite"
+          className={`text-sm ${
+            formState.ok === true ? 'text-success' : 'text-danger'
+          }`}
+        >
+          {formState.message}
+        </p>
+      )}
+    </form>
+  )
+}

components/pages/posts/[slug]/index.tsx

@@ -6,6 +6,7 @@ import { Layout } from 'components/Layout'
 import { A11yStaticImageData } from 'lib/content/images'
 import Link from 'next/link'
 import { ShareLinks } from 'components/ShareLinks'
+import { SubscribeForm } from './SubscribeForm'
 
 export interface PostDetailsProps {
   post: RenderablePost
@@ -52,12 +53,11 @@ const ContentContainer: React.FC<{ children?: React.ReactNode }> = ({
 const Closer: React.FC<{ title: string }> = ({ title }) => (
   <section className="flex flex-col gap-12 text-center">
     <hr className="border-borderColor" />
-    <p>
-      Did you enjoy the post? Consider supporting me and my tea addition 🤗🍵.
-    </p>
+    <SubscribeForm />
+    <p>You can also support me and my tea addition 🤗🍵.</p>
     <BuyMeACoffeeButton />
     <p className="mx-auto flex gap-2">
-      Or sharing with others
+      Or share with others
       <ShareLinks title={title} />
     </p>
   </section>

tailwind.config.ts

@@ -61,6 +61,10 @@ export default {
                 offBase: colors.gray[200],
                 brand: primary.DEFAULT,
                 primary: primary[100],
+                accent: {
+                  DEFAULT: colors.yellow[300],
+                  hover: colors.yellow[500]
+                },
                 active: primary[100],
                 success: colors.green[100],
                 warning: colors.yellow[50],
@@ -78,6 +82,7 @@ export default {
                   },
                   brand: primary[100],
                   primary: primary[900],
+                  accent: colors.yellow[900],
                   active: colors.zinc[900],
                   success: colors.green[900],
                   warning: colors.yellow[900],
@@ -138,6 +143,10 @@ export default {
                   offBase: colors.gray[800],
                   brand: primary[800],
                   primary: '#1f2330', // primary[900] @ 50% opacity on colors.zinc[900]
+                  accent: {
+                    DEFAULT: colors.amber[300],
+                    hover: colors.amber[500]
+                  },
                   active: primary[900],
                   success: '#172a21', // colors.green[800] @ 30% opacity on colors.zinc[900]
                   warning: '#392817', // colors.yellow[800] @ 50% opacity on colors.zinc[900]
@@ -155,6 +164,7 @@ export default {
                     },
                     brand: primary[100],
                     primary: primary[100],
+                    accent: colors.amber[900],
                     active: primary[100],
                     success: colors.green[200],
                     warning: colors.yellow[200],