When using jsonlite in R, how do I specify that only some of the entries are to be treated as arrays?












0















I have the following code:



# install.packages("jsonlite")

require("jsonlite")

x = list(

    test = "my_test",

    data = c(1, 2, 3)

)

toJSON(x)


This prints:



{"test":["my_test"],"data":[1,2,3]}


I was expecting:



{"test":"my_test","data":[1,2,3]}


I've tried using some of the parameters from the documentation, but can't seem to get it right.






r serialization jsonlite







share|improve this question



























    0















    I have the following code:



    # install.packages("jsonlite")
    
require("jsonlite")
    
x = list(
    
    test = "my_test",
    
    data = c(1, 2, 3)
    
)
    
toJSON(x)


    This prints:



    {"test":["my_test"],"data":[1,2,3]}


    I was expecting:



    {"test":"my_test","data":[1,2,3]}


    I've tried using some of the parameters from the documentation, but can't seem to get it right.






    r serialization jsonlite







    share|improve this question

























      0












      0








      0








      I have the following code:



      # install.packages("jsonlite")
      
require("jsonlite")
      
x = list(
      
    test = "my_test",
      
    data = c(1, 2, 3)
      
)
      
toJSON(x)


      This prints:



      {"test":["my_test"],"data":[1,2,3]}


      I was expecting:



      {"test":"my_test","data":[1,2,3]}


      I've tried using some of the parameters from the documentation, but can't seem to get it right.






      r serialization jsonlite







      share|improve this question














      I have the following code:



      # install.packages("jsonlite")
      
require("jsonlite")
      
x = list(
      
    test = "my_test",
      
    data = c(1, 2, 3)
      
)
      
toJSON(x)


      This prints:



      {"test":["my_test"],"data":[1,2,3]}


      I was expecting:



      {"test":"my_test","data":[1,2,3]}


      I've tried using some of the parameters from the documentation, but can't seem to get it right.






      r serialization jsonlite




      r serialization jsonlite






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 6:43









      André C. AndersenAndré C. Andersen

      4,19122847




      4,19122847
























          1 Answer
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          1














          The argument auto_unbox=TRUE did the trick:




          automatically unbox all atomic vectors of length 1. It is usually safer to avoid this and instead use the unbox function to unbox individual elements. An exception
          is that objects of class AsIs (i.e. wrapped in I()) are not automatically unboxed. This is a way to mark single values as length-1 arrays.




          I.e., the solution was toJSON(x, auto_unbox=TRUE), which returns what I expected:



          {"test":"my_test","data":[1,2,3]}





          share|improve this answer

























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            1 Answer
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            active

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            active

            oldest

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            active

            oldest

            votes









            1














            The argument auto_unbox=TRUE did the trick:




            automatically unbox all atomic vectors of length 1. It is usually safer to avoid this and instead use the unbox function to unbox individual elements. An exception
            is that objects of class AsIs (i.e. wrapped in I()) are not automatically unboxed. This is a way to mark single values as length-1 arrays.




            I.e., the solution was toJSON(x, auto_unbox=TRUE), which returns what I expected:



            {"test":"my_test","data":[1,2,3]}





            share|improve this answer






























              1














              The argument auto_unbox=TRUE did the trick:




              automatically unbox all atomic vectors of length 1. It is usually safer to avoid this and instead use the unbox function to unbox individual elements. An exception
              is that objects of class AsIs (i.e. wrapped in I()) are not automatically unboxed. This is a way to mark single values as length-1 arrays.




              I.e., the solution was toJSON(x, auto_unbox=TRUE), which returns what I expected:



              {"test":"my_test","data":[1,2,3]}





              share|improve this answer




























                1












                1








                1







                The argument auto_unbox=TRUE did the trick:




                automatically unbox all atomic vectors of length 1. It is usually safer to avoid this and instead use the unbox function to unbox individual elements. An exception
                is that objects of class AsIs (i.e. wrapped in I()) are not automatically unboxed. This is a way to mark single values as length-1 arrays.




                I.e., the solution was toJSON(x, auto_unbox=TRUE), which returns what I expected:



                {"test":"my_test","data":[1,2,3]}





                share|improve this answer















                The argument auto_unbox=TRUE did the trick:




                automatically unbox all atomic vectors of length 1. It is usually safer to avoid this and instead use the unbox function to unbox individual elements. An exception
                is that objects of class AsIs (i.e. wrapped in I()) are not automatically unboxed. This is a way to mark single values as length-1 arrays.




                I.e., the solution was toJSON(x, auto_unbox=TRUE), which returns what I expected:



                {"test":"my_test","data":[1,2,3]}






                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 23 '18 at 6:19

























                answered Nov 22 '18 at 6:46









                André C. AndersenAndré C. Andersen

                4,19122847




                4,19122847
































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