{"id":135444,"date":"2024-09-06T14:15:39","date_gmt":"2024-09-06T08:45:39","guid":{"rendered":"https:\/\/www.vskills.in\/certification\/tutorial\/?page_id=135444"},"modified":"2024-09-06T14:15:40","modified_gmt":"2024-09-06T08:45:40","slug":"creating-and-decoding-confirmation-tokens","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/creating-and-decoding-confirmation-tokens\/","title":{"rendered":"Creating and Decoding Confirmation Tokens"},"content":{"rendered":"\n<p>Confirmation tokens are often used to verify user email addresses or other sensitive information. In this guide, we&#8217;ll demonstrate how to create and decode confirmation tokens using JWTs in FastAPI.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Generating Confirmation Tokens<\/strong><\/h2>\n\n\n\n<p>Python<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import jwt\nfrom fastapi import Depends, HTTPException\nfrom app.models import User\n\ndef create_confirmation_token(user_id: int):\n    data = {\"user_id\": user_id}\n    token = jwt.encode(data, \"your_secret_key\", algorithm=\"HS256\")\n    return token\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sending Confirmation Emails<\/strong><\/h2>\n\n\n\n<p>Once you&#8217;ve generated a confirmation token, you can send it to the user&#8217;s email address in a confirmation email. The email should contain a link that includes the confirmation token.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Decoding Confirmation Tokens<\/strong><\/h2>\n\n\n\n<p>Python<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def decode_confirmation_token(token: str):\n    try:\n        data = jwt.decode(token, \"your_secret_key\", algorithms=&#91;\"HS256\"])\n        return data&#91;\"user_id\"]\n    except jwt.ExpiredSignatureError:\n        raise HTTPException(status_code=400, detail=\"Confirmation token expired\")\n    except jwt.InvalidTokenError:\n        raise HTTPException(status_code=400, detail=\"Invalid confirmation token\")\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Verifying Confirmation Tokens<\/strong><\/h2>\n\n\n\n<p>Python<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@app.get(\"\/confirm\/{token}\")\nasync def confirm_email(token: str, db: Session = Depends(get_db)):\n    try:\n        user_id = decode_confirmation_token(token)\n        user = await db.query(User).filter(User.id == user_id).first()\n        if not user:\n            raise HTTPException(status_code=404, detail=\"User not found\")\n\n        user.is_verified = True\n        db.add(user)\n        await db.commit()\n        return {\"message\": \"Email confirmed\"}\n    except HTTPException as e:\n        raise e\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Additional Factors<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Token Expiration:<\/strong> Set an expiration time for confirmation tokens to prevent abuse.<\/li>\n\n\n\n<li><strong>Unique Tokens:<\/strong> Ensure that each confirmation token is unique.<\/li>\n\n\n\n<li><strong>Security:<\/strong> Keep your secret key secret and use a strong algorithm for signing JWTs.<\/li>\n\n\n\n<li><strong>Resend Options:<\/strong> Provide users with the option to resend the confirmation email if they don&#8217;t receive it.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Confirmation tokens are often used to verify user email addresses or other sensitive information. In this guide, we&#8217;ll demonstrate how to create and decode confirmation tokens using JWTs in FastAPI. Generating Confirmation Tokens Python Sending Confirmation Emails Once you&#8217;ve generated a confirmation token, you can send it to the user&#8217;s email address in a confirmation&#8230;<\/p>\n","protected":false},"author":16,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-135444","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Creating and Decoding Confirmation Tokens - Tutorial<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vskills.in\/certification\/tutorial\/creating-and-decoding-confirmation-tokens\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Creating and Decoding Confirmation Tokens - Tutorial\" \/>\n<meta property=\"og:description\" content=\"Confirmation tokens are often used to verify user email addresses or other sensitive information. 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