使用jq将新元素添加到现有JSON数组

使用jq将新元素添加到现有JSON数组

|= .+

过滤器中的部件将新元素添加到现有数组。您可以使用

jq

类似的过滤器：

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

为避免使用硬编码的长度值

3

并动态添加新元素，请使用

. | length

，它返回长度，该长度可用作下一个数组索引，即

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

（或）根据评论中峰的建议，

+=

仅使用运算符

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"}]'

产生所需的输出：

{  "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"      }    ]  }}

使用jq-play试运行

jq-filter

并优化您想要的任何方式。