--- title: Secure your CLI applications with OAuth (and Spring... description: A walkthrough of securing a CLI application using OAuth 2.0 Device Code flow with Spring Security. The tutorial covers setting up a Spring Authorization... canonical: https://daily.dev/posts/secure-your-cli-applications-with-oauth-and-spring-security--esftcl0y2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Secure your CLI applications with OAuth (and Spring Security) | daily.dev og:description: A walkthrough of securing a CLI application using OAuth 2.0 Device Code flow with Spring Security. The tutorial covers setting up a Spring Authorization... og:url: https://daily.dev/posts/secure-your-cli-applications-with-oauth-and-spring-security--esftcl0y2 og:image: https://api.daily.dev/og/posts/EsFTcL0y2.png og:image:alt: Secure your CLI applications with OAuth (and Spring Security) 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. # Secure your CLI applications with OAuth (and Spring Security) **[Coffee \+ Software](https://daily.dev/sources/coffee-software)** · 13 min read · 0 upvotes · 0 comments ## Summary A walkthrough of securing a CLI application using OAuth 2.0 Device Code flow with Spring Security. The tutorial covers setting up a Spring Authorization Server, creating a protected REST endpoint as an OAuth resource server, and building a Spring Shell CLI client that authenticates users via the device code grant type. The CLI prompts users to visit a verification URL, polls for the access token, then uses it to call the secured backend API. The result can be compiled into a GraalVM native image for distribution. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [CLI Authentication, the Right Way](https://daily.dev/posts/cli-authentication-the-right-way-ybniyqoml) · Lobsters · 1 upvotes · 0 comments - [Secure Your APIs: OAuth2 and JWT for Beginners](https://daily.dev/posts/secure-your-apis-oauth2-and-jwt-for-beginners-hh8guukwi) · JetBrains · 5 upvotes · 0 comments - [OAuth 2.0 – Device flow explained for Engineers, especially for Backend Engineers](https://daily.dev/posts/oauth-2-0-device-flow-explained-for-engineers-especially-for-backend-engineers-dzube1gf7) · Stack Overflow Blog · 5 upvotes · 0 comments --- Tags: [#spring-security](https://daily.dev/tags/spring-security) [View this post on daily.dev](https://daily.dev/posts/secure-your-cli-applications-with-oauth-and-spring-security--esftcl0y2) ```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":"Secure your CLI applications with OAuth (and Spring Security)","url":"https://daily.dev/posts/secure-your-cli-applications-with-oauth-and-spring-security--esftcl0y2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/secure-your-cli-applications-with-oauth-and-spring-security--esftcl0y2"},"datePublished":"2026-03-16T08:14:04.570Z","dateModified":"2026-03-16T08:22:42.912Z","description":"A walkthrough of securing a CLI application using OAuth 2.0 Device Code flow with Spring Security. 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