--- title: 5 Node.js security code snippets every backend developer... description: Learn about essential Node.js security code snippets, including using the Node.js Permissions Model, implementing input validation with Fastify JSON schema,... canonical: https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: 5 Node.js security code snippets every backend developer should know | daily.dev og:description: Learn about essential Node.js security code snippets, including using the Node.js Permissions Model, implementing input validation with Fastify JSON schema,... og:url: https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu og:image: https://api.daily.dev/og/posts/mDsC9pPvU.png og:image:alt: 5 Node.js security code snippets every backend developer should know 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. # 5 Node.js security code snippets every backend developer should know **[Snyk](https://daily.dev/sources/snyk)** · 13 min read · 122 upvotes · 6 comments ## Summary Learn about essential Node.js security code snippets, including using the Node.js Permissions Model, implementing input validation with Fastify JSON schema, securing password hashing with Bcrypt, preventing SQL injection attacks with Knex.js, and implementing rate limiting with fastify-rate-limit. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@corentynhayer** · 0 upvotes > Very interesting ! I recommend ! **@brunocardoso** · 0 upvotes > Thanks for share! **@pedrocarrasco** · 0 upvotes > Thanks for the article, I jot down the SQL injection snnipet... **@legendaryemoji** · 0 upvotes > This seems like a promotional article of Fastify lmao. Great article though **@atharvanp** · 0 upvotes > Learnt some new things. Very good!! --- Tags: [#security](https://daily.dev/tags/security), [#nodejs](https://daily.dev/tags/nodejs), [#backend](https://daily.dev/tags/backend), [#fastify](https://daily.dev/tags/fastify) [View this post on daily.dev](https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu) ```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":"5 Node.js security code snippets every backend developer should know","url":"https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu"},"datePublished":"2024-02-28T14:04:08.705Z","dateModified":"2024-05-09T09:21:59.549Z","description":"Learn about essential Node.js security code snippets, including using the Node.js Permissions Model, implementing input validation with Fastify JSON schema,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d44fdd73cb6de7a987f67cd95f58c06f?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d44fdd73cb6de7a987f67cd95f58c06f?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"Snyk","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Snyk","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/8fb2a7b471c04bac9af29fbeb3ed1cf6","url":"https://daily.dev/sources/snyk"},"commentCount":6,"discussionUrl":"https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":122},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":6}],"keywords":"security,nodejs,backend,fastify","timeRequired":"PT13M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Snyk","item":"https://daily.dev/sources/snyk"},{"@type":"ListItem","position":3,"name":"5 Node.js security code snippets every backend developer should know"}]} {"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/5-node-js-security-code-snippets-every-backend-developer-should-know-mdsc9ppvu","comment":[{"@type":"Comment","text":"Very interesting ! I recommend !","datePublished":"2024-03-01T09:59:03.020Z","url":"https://daily.dev/posts/mDsC9pPvU#c-NuWxudjfZ","author":{"@type":"Person","name":"corentyn hayer","url":"https://daily.dev/corentynhayer","image":"https://media.daily.dev/image/upload/s--DKBbPLBI--/f_auto/v1707647228/avatars/avatar_vzY2fCHyONlsS3BHjJZKR"}},{"@type":"Comment","text":"Thanks for share!","datePublished":"2024-03-20T12:32:48.294Z","url":"https://daily.dev/posts/mDsC9pPvU#c-yV9jdrWh2","author":{"@type":"Person","name":"Bruno Cardoso","url":"https://daily.dev/brunocardoso","image":"https://lh3.googleusercontent.com/a/AItbvmmXVyn0jQFfFfVOvgP_Ru5zlzPjSWmChUDuiADo=s100"}},{"@type":"Comment","text":"Thanks for the article, I jot down the SQL injection snnipet…","datePublished":"2024-03-04T06:49:28.668Z","url":"https://daily.dev/posts/mDsC9pPvU#c-GuEF8ye2s","author":{"@type":"Person","name":"Pedro Carrasco","url":"https://daily.dev/pedrocarrasco","image":"https://lh3.googleusercontent.com/a-/AOh14GhAeZnFB-vMcV93IvuaSB5JwJ4fGQnYmoZzWV5upA=s100"}},{"@type":"Comment","text":"This seems like a promotional article of Fastify lmao. Great article though","datePublished":"2024-03-06T08:12:20.813Z","url":"https://daily.dev/posts/mDsC9pPvU#c-oVY4rzAmP","author":{"@type":"Person","name":"Legendary Emoji","url":"https://daily.dev/legendaryemoji","image":"https://avatars.githubusercontent.com/u/60050010?v=4"}},{"@type":"Comment","text":"Learnt some new things. Very good!!","datePublished":"2024-03-12T18:38:49.007Z","url":"https://daily.dev/posts/mDsC9pPvU#c-jfpq9XNet","author":{"@type":"Person","name":"Atharvan P","url":"https://daily.dev/atharvanp","image":"https://lh3.googleusercontent.com/a/ACg8ocLrpa92dXPUDtVXQGDzDR5aWZefPRoUc6lK6cQ8FS2MBw=s96-c"}}]} ```