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Firestore Rule: Only strings in List


Firestore Security Rules how to validate deeply nested array/map valuesFirestore security rules for `list` requestFirebase Firestore RulesHow to check if there is only one specific field who is updated with Firestore rules?Cloud Firestore Security Rules allow write only from Firebase functionFirestore Security Rules RegexFirestore security rules - Unique usernamesNested Firestore security rules - get()Firestore Rule allowing overwriteFirestore rules - Allow only update certain field of a documentSecurity rules Firestore













0















How can I check if there are only strings in request.resource.data.myArray?



Loops and recursive calls are not allowed.










share|improve this question




























    0















    How can I check if there are only strings in request.resource.data.myArray?



    Loops and recursive calls are not allowed.










    share|improve this question


























      0












      0








      0








      How can I check if there are only strings in request.resource.data.myArray?



      Loops and recursive calls are not allowed.










      share|improve this question
















      How can I check if there are only strings in request.resource.data.myArray?



      Loops and recursive calls are not allowed.







      google-cloud-firestore firebase-security-rules






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 9 at 1:37









      Frank van Puffelen

      245k29389416




      245k29389416










      asked Mar 8 at 22:29









      000000000000000000000000000000000000000000

      6771728




      6771728






















          1 Answer
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          This is not possible today, unless you know the size of the array, and you write an expression to check the element at each index. However, what you're asking is a reasonable thing to want to do, and you should file a feature request for it. Bear in mind, though, that it's a long way off from happening.



          The only way this would eventually work is if the rules language had a lambda type where you could pass a predicate function into a method that ensures it only returns true for every element in the list. But that concept doesn't exist right now, so it would require a fair amount of effort to implement.






          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

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            active

            oldest

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            active

            oldest

            votes









            2














            This is not possible today, unless you know the size of the array, and you write an expression to check the element at each index. However, what you're asking is a reasonable thing to want to do, and you should file a feature request for it. Bear in mind, though, that it's a long way off from happening.



            The only way this would eventually work is if the rules language had a lambda type where you could pass a predicate function into a method that ensures it only returns true for every element in the list. But that concept doesn't exist right now, so it would require a fair amount of effort to implement.






            share|improve this answer



























              2














              This is not possible today, unless you know the size of the array, and you write an expression to check the element at each index. However, what you're asking is a reasonable thing to want to do, and you should file a feature request for it. Bear in mind, though, that it's a long way off from happening.



              The only way this would eventually work is if the rules language had a lambda type where you could pass a predicate function into a method that ensures it only returns true for every element in the list. But that concept doesn't exist right now, so it would require a fair amount of effort to implement.






              share|improve this answer

























                2












                2








                2







                This is not possible today, unless you know the size of the array, and you write an expression to check the element at each index. However, what you're asking is a reasonable thing to want to do, and you should file a feature request for it. Bear in mind, though, that it's a long way off from happening.



                The only way this would eventually work is if the rules language had a lambda type where you could pass a predicate function into a method that ensures it only returns true for every element in the list. But that concept doesn't exist right now, so it would require a fair amount of effort to implement.






                share|improve this answer













                This is not possible today, unless you know the size of the array, and you write an expression to check the element at each index. However, what you're asking is a reasonable thing to want to do, and you should file a feature request for it. Bear in mind, though, that it's a long way off from happening.



                The only way this would eventually work is if the rules language had a lambda type where you could pass a predicate function into a method that ensures it only returns true for every element in the list. But that concept doesn't exist right now, so it would require a fair amount of effort to implement.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Mar 8 at 23:51









                Doug StevensonDoug Stevenson

                83.3k10100118




                83.3k10100118





























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