@runnerty/executor-json2csv NPM

Executor for Runnerty: JSON2CSV

Installation:

Through NPM

npm i @runnerty/executor-json2csv

You can also add modules to your project with runnerty-cli

npx runnerty-cli add @runnerty/executor-json2csv

This command installs the module in your project, adds example configuration in your config.json and creates an example plan of use.

If you have installed runnerty-cli globally you can include the module with this command:

rty add @runnerty/executor-json2csv

Configuration sample:

Add in config.json:

{
  "id": "json2csv_default",
  "type": "@runnerty-executor-json2csv"
}

Plan sample:

Add in plan.json:

JSON Example

[
  {
    "planet": "Earth",
    "radius": 6371,
    "satellites": [
      {
        "name": "moon",
        "radius": 1737
      }
    ]
  },
  {
    "planet": "Mars",
    "radius": 3389,
    "satellites": [
      {
        "name": "phobos",
        "radius": 11267
      },
      {
        "name": "deimos",
        "radius": 6.2
      }
    ]
  }
]

Example 1:

{
  "id": "json2csv_default",
  "inputPath": "./planets.json",
  "outputPath": "./planets.csv"
}

CSV Output

"planet","radius","satellites"
"Earth",6371,"[{""name"":""moon"",""radius"":1737}]"
"Mars",3389,"[{""name"":""phobos"",""radius"":11267},{""name"":""deimos"",""radius"":6.2}]"

Example 2:

{
  "id": "json2csv_default",
  "inputPath": "./planets.json",
  "outputPath": "./planets.csv",
  "options": {
    "fields": ["planet", "radius", "satellites.name", "satellites.radius"]
  },
  "transforms": {
    "unwind": { "paths": ["satellites"] }
  }
}

CSV Ouput

"planet","radius","satellites.name","satellites.radius"
"Earth",6371,"moon",1737
"Mars",3389,"phobos",11267
"Mars",3389,"deimos",6.2

Full params example:

{
  "id": "json2csv_default",
  "inputPath": "./input.json",
  "input": "@GV(MY_JSON)",
  "outputPath": "./output.csv",
  "options": {
    "fields": ["field1", "field2", "field3"],
    "defaultValue": "NULL",
    "header": true,
    "escapedQuote": "",
    "delimiter": ";",
    "eol": "\r\n",
    "excelStrings": true,
    "includeEmptyRows": true,
    "withBOM": true
  },
  "transforms": {
    "unwind": { "paths": ["items", "items.items"], "blankOut": true },
    "flatten": { "objects": true, "arrays": true, "separator": "_" }
  }
}

Params

Options

Option	Description
fields	List of fields to process. Defaults to field auto-detection.
defaultValue	Default value to use for missing fields.
quote	Character(s) to use as quote mark. Defaults to '"'.
delimiter	Character(s) to use as delimiter. Defaults to ','. (default: ",")
escapedQuote	Character(s) to use as a escaped quote. Defaults to a double `quote`, '""'.
eol	Character(s) to use as End-of-Line for separating rows. Defaults to '\n'. (default: "\n")
excelStrings	Wraps string data to force Excel to interpret it as string even if it contains a number.
header	Boolean to Enable/Disable the column name header. (Enabled by defaults)
includeEmptyRows	Boolean to Includes empty rows in the resulting CSV output.
withBOM	Boolean to Includes BOM character at the beginning of the CSV.

Transforms

Option	Description
unwind	Creates multiple rows from a single JSON document similar to MongoDB unwind.
- paths	Unwind fields path.
- blankOut	When unwinding, blank out instead of repeating data. Defaults to false. (default: false)
flatten	Nested javascript objects into a single level object.
- object	Flatten nested objects. Defaults to false. (default: false)
- arrays	Flatten nested arrays. Defaults to false. (default: false)
- separator	Flattened keys separator. Defaults to '.'. (default: ".")

More information:

This executor is a wrapper of the module json2csv (zemirco), for more information consult the website of the json2csv.

runnerty executor json2csv json csv

@json2csv/node @json2csv/plainjs @json2csv/transforms @runnerty/module-core string-to-stream

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