5.7.4 JSON Format Output

MySQL Shell provides a number of JSON format options to print result sets:

json or json/pretty

These options both produce pretty-printed JSON.

ndjson or json/raw

These options both produce raw JSON delimited by newlines.

json/array

This option produces raw JSON wrapped in a JSON array.

You can select these output formats by starting MySQL Shell with the --result-format=value command line option, or setting the MySQL Shell configuration option resultFormat.

In batch mode, to help integrate MySQL Shell with external tools, you can use the --json option to control JSON wrapping for all output when you start MySQL Shell from the command line. When JSON wrapping is turned on, MySQL Shell generates either pretty-printed JSON (the default) or raw JSON, and the value of the resultFormat MySQL Shell configuration option is ignored. For instructions, see Section 5.7.5, “JSON Wrapping”.

Example 5.4 Output in Pretty-Printed JSON Format (json or json/pretty)

MySQL  localhost:33060+ ssl  world_x  JS > shell.options.set('resultFormat','json')
MySQL  localhost:33060+ ssl  world_x  JS > session.sql("select * from city where countrycode='AUT'")
{
    "ID": 1523,
    "Name": "Wien",
    "CountryCode": "AUT",
    "District": "Wien",
    "Info": {
        "Population": 1608144
    }
}
{
    "ID": 1524,
    "Name": "Graz",
    "CountryCode": "AUT",
    "District": "Steiermark",
    "Info": {
        "Population": 240967
    }
}
{
    "ID": 1525,
    "Name": "Linz",
    "CountryCode": "AUT",
    "District": "North Austria",
    "Info": {
        "Population": 188022
    }
}
{
    "ID": 1526,
    "Name": "Salzburg",
    "CountryCode": "AUT",
    "District": "Salzburg",
    "Info": {
        "Population": 144247
    }
}
{
    "ID": 1527,
    "Name": "Innsbruck",
    "CountryCode": "AUT",
    "District": "Tiroli",
    "Info": {
        "Population": 111752
    }
}
{
    "ID": 1528,
    "Name": "Klagenfurt",
    "CountryCode": "AUT",
    "District": "Kärnten",
    "Info": {
        "Population": 91141
    }
}
6 rows in set (0.0031 sec)

Example 5.5 Output in Raw JSON Format with Newline Delimiters (ndjson or json/raw)

MySQL  localhost:33060+ ssl  world_x  JS > shell.options.set('resultFormat','ndjson')
MySQL  localhost:33060+ ssl  world_x  JS > session.sql("select * from city where countrycode='AUT'")
{"ID":1523,"Name":"Wien","CountryCode":"AUT","District":"Wien","Info":{"Population":1608144}}
{"ID":1524,"Name":"Graz","CountryCode":"AUT","District":"Steiermark","Info":{"Population":240967}}
{"ID":1525,"Name":"Linz","CountryCode":"AUT","District":"North Austria","Info":{"Population":188022}}
{"ID":1526,"Name":"Salzburg","CountryCode":"AUT","District":"Salzburg","Info":{"Population":144247}}
{"ID":1527,"Name":"Innsbruck","CountryCode":"AUT","District":"Tiroli","Info":{"Population":111752}}
{"ID":1528,"Name":"Klagenfurt","CountryCode":"AUT","District":"Kärnten","Info":{"Population":91141}}
6 rows in set (0.0032 sec)

Example 5.6 Output in Raw JSON Format Wrapped in a JSON Array (json/array)

MySQL  localhost:33060+ ssl  world_x  JS > shell.options.set('resultFormat','json/array')
MySQL  localhost:33060+ ssl  world_x  JS > session.sql("select * from city where countrycode='AUT'")
[
{"ID":1523,"Name":"Wien","CountryCode":"AUT","District":"Wien","Info":{"Population":1608144}},
{"ID":1524,"Name":"Graz","CountryCode":"AUT","District":"Steiermark","Info":{"Population":240967}},
{"ID":1525,"Name":"Linz","CountryCode":"AUT","District":"North Austria","Info":{"Population":188022}},
{"ID":1526,"Name":"Salzburg","CountryCode":"AUT","District":"Salzburg","Info":{"Population":144247}},
{"ID":1527,"Name":"Innsbruck","CountryCode":"AUT","District":"Tiroli","Info":{"Population":111752}},
{"ID":1528,"Name":"Klagenfurt","CountryCode":"AUT","District":"Kärnten","Info":{"Population":91141}}
]
6 rows in set (0.0032 sec)