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Ajouter un nouvel élément au tableau JSON existant avec jq

Je souhaite ajouter un élément à un tableau d'un fichier JSON à l'aide de la commande jq``add commande, mais ça ne marche pas.

report-2017-01-07.json fichier:

{  
   "report": "1.0",
   "data": {  
      "date": "2010-01-07",
      "messages": [  
         {  
            "date": "2010-01-07T19:58:42.949Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "OK",
            "message": "metadata loaded into iRODS successfully"
         },
         {  
            "date": "2010-01-07T20:22:46.949Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "NOK",
            "message": "metadata duplicated into iRODS"
         },
         {  
            "date": "2010-01-07T22:11:55.949Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "NOK",
            "message": "metadata was not validated by XSD schema"
         }
      ]
   }
}

J'utilise cette commande:

$ cat report-2017-01-07.json 
| jq -s '.data.messages {"date": "2010-01-07T19:55:99.999Z", "xml": "xml_samplesheet_2017_01_07_run_09.xml", "status": "OKKK", "message": "metadata loaded into iRODS successfullyyyyy"}'
jq: error: syntax error, unexpected '{', expecting $end (Unix Shell quoting issues?) at <top-level>, line 1:
.data.messages {"date": "2010-01-07T19:55:99.999Z", "xml": "xml_samplesheet_2017_01_07_run_09.xml", "status": "OKKK", "message": "metadata loaded into iRODS successfullyyyyy"}               
jq: 1 compile error

Voici comment je veux que la sortie ressemble:

{
    "report": "1.0",
    "data": {
        "date": "2010-01-07",
        "messages": [{
            "date": "2010-01-07T19:58:42.949Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "OK",
            "message": "metadata loaded into iRODS successfully"
        }, {
            "date": "2010-01-07T20:22:46.949Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "NOK",
            "message": "metadata duplicated into iRODS"
        }, {
            "date": "2010-01-07T22:11:55.949Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "NOK",
            "message": "metadata was not validated by XSD schema"
        }, {
            "date": "2010-01-07T19:55:99.999Z",
            "xml": "xml_samplesheet_2017_01_07_run_09.xml",
            "status": "OKKKKKKK",
            "message": "metadata loaded into iRODS successfullyyyyy"
        }]
    }
}
jsonbashjq
35
Felipe

Le |= .+ la partie dans le filtre ajoute un nouvel élément au tableau existant. Vous pouvez utiliser jq avec un filtre comme:

jq '.data.messages[3] |= . + {"date": "2010-01-07T19:55:99.999Z", "xml": "xml_samplesheet_2017_01_07_run_09.xml", "status": "OKKK", "message": "metadata loaded into iRODS successfullyyyyy"}' inputJson

Pour éviter d'utiliser la valeur de longueur codée en dur 3 et ajouter dynamiquement un nouvel élément, utilisez . | length qui renvoie la longueur, qui peut être utilisé comme index de tableau suivant, c.-à-d.,

jq '.data.messages[.data.messages| length] |= . + {"date": "2010-01-07T19:55:99.999Z", "xml": "xml_samplesheet_2017_01_07_run_09.xml", "status": "OKKK", "message": "metadata loaded into iRODS successfullyyyyy"}' inputJson

(ou) selon la suggestion de Peak dans les commentaires, en utilisant le += opérateur seul

jq '.data.messages += [{"date": "2010-01-07T19:55:99.999Z", "xml": "xml_samplesheet_2017_01_07_run_09.xml", "status": "OKKK", "message": "metadata loaded into iRODS successfullyyyyy"}]'

qui produit la sortie dont vous avez besoin:

{
  "report": "1.0",
  "data": {
    "date": "2010-01-07",
    "messages": [
      {
        "date": "2010-01-07T19:58:42.949Z",
        "xml": "xml_samplesheet_2017_01_07_run_09.xml",
        "status": "OK",
        "message": "metadata loaded into iRODS successfully"
      },
      {
        "date": "2010-01-07T20:22:46.949Z",
        "xml": "xml_samplesheet_2017_01_07_run_09.xml",
        "status": "NOK",
        "message": "metadata duplicated into iRODS"
      },
      {
        "date": "2010-01-07T22:11:55.949Z",
        "xml": "xml_samplesheet_2017_01_07_run_09.xml",
        "status": "NOK",
        "message": "metadata was not validated by XSD schema"
      },
      {
        "date": "2010-01-07T19:55:99.999Z",
        "xml": "xml_samplesheet_2017_01_07_run_09.xml",
        "status": "OKKK",
        "message": "metadata loaded into iRODS successfullyyyyy"
      }
    ]
  }
}

Utilisez jq-play pour sécher votre jq-filter et optimisez ce que vous voulez.

46
Inian

Plutôt que d'utiliser |=, pensez à utiliser +=:

.data.messages += [{"date": "2010-01-07T19:55:99.999Z",
   "xml": "xml_samplesheet_2017_01_07_run_09.xml",
   "status": "OKKK", "message": "metadata loaded into iRODS successfullyyyyy"}]

Préfini

D'autre part, si (comme @NicHuang l'a demandé) vous souhaitez ajouter l'objet JSON au début du tableau, vous pouvez utiliser le modèle:

 .data.messages |= [ _ ] + .
29
peak

Résumé: ". +" Est votre sauveur

Détails:

Pour ajouter une entrée à une liste: Vous pouvez ajouter [list1] + [list2] (et non [list] + data)

$ echo '[ "data1" ]' | jq '. + [ "data2" ]'
[
  "data1",
  "data2"
]

$ echo '[ {"key1": "value1"} ]' | jq '. + [{"key2": "value2"}]'
[
  {
    "key1": "value1"
  },
  {
    "key2": "value2"
  }
]

Pour ajouter une clé/valeur à un dictionnaire:

$ echo '{"key1": "value1"}' | jq '. + {"key2": "value2"}'
{
  "key1": "value1",
  "key2": "value2"
}

Références:

https://Gist.github.com/joar/776b7d176196592ed5d8

0
prabhakar palanivel