Managing User Permissions in a Vue.js App | vue admin permission
Inauthenticatedfront-endapps,weoftenwanttochangewhatsvisibletotheuserdependingontheirassignedrole.Forexample,aguestusermightbeabletoseeapost,butonlyaregistereduseroranadminseesabuttontoeditthatpost.Managingpermissionsinafront-endappcanbemessy.Youmayhavewrittencodelikethisbefore:if(user.type===ADMIN||user.auth&&post.owner===user.id){...}Asanalternative,theresaneatlittlelibrarycalledCASLthathelpsmanageuserpermissionsverysimply.OnceyouvedefinedyourpermissionswithCASLandsetanactiveuser,y...
In authenticated front-end apps, we often want to change whats visible to the user depending on their assigned role. For example, a guest user might be able to see a post, but only a registered user or an admin sees a button to edit that post.
Managing permissions in a front-end app can be messy. You may have written code like this before:
if (user.type === ADMIN || user.auth && post.owner === user.id ) { ... }As an alternative, theres a neat little library called CASL that helps manage user permissions very simply. Once youve defined your permissions with CASL and set an active user, you could change the above example to something like this:
if (abilities.can(update, Post)) { ... }In this article, Ill demonstrate how to manage permissions in a front-end app with Vue.js and CASL.
Note: you dont have to have used CASL before to follow this!
CASL Crash CourseCASL allows you to define a set of rules which restrict what resource...