jq transform - json child array to delimited string












2














i want to transform the following input with jq



{
"count": 1000,
"rows": [{
"id": 1,
"child_id": 11,
"childarray": ["value1", "value2"]
},
{
"id": 2,
"child_id": 12,
"childarray": ["value3", "value4"]
}
]
}


Output should be:



[
{
"id": 1,
"child_id": 11,
"childarray": "value1, value2"
},
{
"id": 2,
"child_id": 12,
"childarray": "value3, value4"
}
]


I use this jq filter-> "[.rows]" but don't know howto "join" the array -> "childarray": ["value1", "value2"] to a comma delimited string -> "value1, value2"



https://jqplay.org/s/5TlSDgJnkc










share|improve this question



























    2














    i want to transform the following input with jq



    {
    "count": 1000,
    "rows": [{
    "id": 1,
    "child_id": 11,
    "childarray": ["value1", "value2"]
    },
    {
    "id": 2,
    "child_id": 12,
    "childarray": ["value3", "value4"]
    }
    ]
    }


    Output should be:



    [
    {
    "id": 1,
    "child_id": 11,
    "childarray": "value1, value2"
    },
    {
    "id": 2,
    "child_id": 12,
    "childarray": "value3, value4"
    }
    ]


    I use this jq filter-> "[.rows]" but don't know howto "join" the array -> "childarray": ["value1", "value2"] to a comma delimited string -> "value1, value2"



    https://jqplay.org/s/5TlSDgJnkc










    share|improve this question

























      2












      2








      2







      i want to transform the following input with jq



      {
      "count": 1000,
      "rows": [{
      "id": 1,
      "child_id": 11,
      "childarray": ["value1", "value2"]
      },
      {
      "id": 2,
      "child_id": 12,
      "childarray": ["value3", "value4"]
      }
      ]
      }


      Output should be:



      [
      {
      "id": 1,
      "child_id": 11,
      "childarray": "value1, value2"
      },
      {
      "id": 2,
      "child_id": 12,
      "childarray": "value3, value4"
      }
      ]


      I use this jq filter-> "[.rows]" but don't know howto "join" the array -> "childarray": ["value1", "value2"] to a comma delimited string -> "value1, value2"



      https://jqplay.org/s/5TlSDgJnkc










      share|improve this question













      i want to transform the following input with jq



      {
      "count": 1000,
      "rows": [{
      "id": 1,
      "child_id": 11,
      "childarray": ["value1", "value2"]
      },
      {
      "id": 2,
      "child_id": 12,
      "childarray": ["value3", "value4"]
      }
      ]
      }


      Output should be:



      [
      {
      "id": 1,
      "child_id": 11,
      "childarray": "value1, value2"
      },
      {
      "id": 2,
      "child_id": 12,
      "childarray": "value3, value4"
      }
      ]


      I use this jq filter-> "[.rows]" but don't know howto "join" the array -> "childarray": ["value1", "value2"] to a comma delimited string -> "value1, value2"



      https://jqplay.org/s/5TlSDgJnkc







      json jq






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 '18 at 12:51









      Olki

      153




      153
























          1 Answer
          1






          active

          oldest

          votes


















          1














          map + join approach:



          jq '.rows | map(.childarray |= join(", "))' input.json


          The output:



          [
          {
          "id": 1,
          "child_id": 11,
          "childarray": "value1, value2"
          },
          {
          "id": 2,
          "child_id": 12,
          "childarray": "value3, value4"
          }
          ]




          Another alternative is:



          jq '.rows.childarray |= join(", ") | .rows'





          share|improve this answer





















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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1














            map + join approach:



            jq '.rows | map(.childarray |= join(", "))' input.json


            The output:



            [
            {
            "id": 1,
            "child_id": 11,
            "childarray": "value1, value2"
            },
            {
            "id": 2,
            "child_id": 12,
            "childarray": "value3, value4"
            }
            ]




            Another alternative is:



            jq '.rows.childarray |= join(", ") | .rows'





            share|improve this answer


























              1














              map + join approach:



              jq '.rows | map(.childarray |= join(", "))' input.json


              The output:



              [
              {
              "id": 1,
              "child_id": 11,
              "childarray": "value1, value2"
              },
              {
              "id": 2,
              "child_id": 12,
              "childarray": "value3, value4"
              }
              ]




              Another alternative is:



              jq '.rows.childarray |= join(", ") | .rows'





              share|improve this answer
























                1












                1








                1






                map + join approach:



                jq '.rows | map(.childarray |= join(", "))' input.json


                The output:



                [
                {
                "id": 1,
                "child_id": 11,
                "childarray": "value1, value2"
                },
                {
                "id": 2,
                "child_id": 12,
                "childarray": "value3, value4"
                }
                ]




                Another alternative is:



                jq '.rows.childarray |= join(", ") | .rows'





                share|improve this answer












                map + join approach:



                jq '.rows | map(.childarray |= join(", "))' input.json


                The output:



                [
                {
                "id": 1,
                "child_id": 11,
                "childarray": "value1, value2"
                },
                {
                "id": 2,
                "child_id": 12,
                "childarray": "value3, value4"
                }
                ]




                Another alternative is:



                jq '.rows.childarray |= join(", ") | .rows'






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 21 '18 at 12:59









                RomanPerekhrest

                55.3k32153




                55.3k32153






























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