--- title: Polar payments in an Astro app | daily.dev description: A practical walkthrough of integrating Polar payments into an Astro app, covering both one-time purchases and monthly subscriptions. Key patterns include... canonical: https://daily.dev/posts/polar-payments-in-an-astro-app-j9z35pk7v twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Polar payments in an Astro app | daily.dev og:description: A practical walkthrough of integrating Polar payments into an Astro app, covering both one-time purchases and monthly subscriptions. Key patterns include... og:url: https://daily.dev/posts/polar-payments-in-an-astro-app-j9z35pk7v og:image: https://api.daily.dev/og/posts/J9z35pk7v.png og:image:alt: Polar payments in an Astro app og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Polar payments in an Astro app **[Flavio Copes](https://daily.dev/sources/flaviocopes)** · 4 min read · 0 upvotes · 0 comments ## Summary A practical walkthrough of integrating Polar payments into an Astro app, covering both one-time purchases and monthly subscriptions. Key patterns include server-side checkout routes (instead of naked Polar links), lazy customer creation to decouple auth from billing, a sync endpoint for local development without webhooks, and server-side entitlement checks using Cloudflare D1. Code examples show checkout creation, subscription status checks, and one-time unlock verification. The post also covers sandbox vs. production setup and recommends shipping the full loop in sandbox before switching to production keys. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [I launched Payment Stack Guide: choose how to get paid](https://daily.dev/posts/i-launched-payment-stack-guide-choose-how-to-get-paid-i4twcserq) · Flavio Copes · 0 upvotes · 0 comments - [How to Build a Complete SaaS Payment Flow with Stripe, Webhooks, and Email Notifications](https://daily.dev/posts/how-to-build-a-complete-saas-payment-flow-with-stripe-webhooks-and-email-notifications-5a7lpzzjr) · freeCodeCamp · 1 upvotes · 0 comments - [Better Auth in Astro on Cloudflare Workers](https://daily.dev/posts/better-auth-in-astro-on-cloudflare-workers-jdbjvzagk) · Flavio Copes · 0 upvotes · 0 comments --- Tags: [#astro](https://daily.dev/tags/astro) [View this post on daily.dev](https://daily.dev/posts/polar-payments-in-an-astro-app-j9z35pk7v) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Polar payments in an Astro app","url":"https://daily.dev/posts/polar-payments-in-an-astro-app-j9z35pk7v","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/polar-payments-in-an-astro-app-j9z35pk7v"},"datePublished":"2026-07-17T07:33:59.780Z","dateModified":"2026-07-17T07:34:19.193Z","description":"A practical walkthrough of integrating Polar payments into an Astro app, covering both one-time purchases and monthly subscriptions. 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