gulp-csv-to-json

> Generate static JSON from CSV key/value data.

Getting Started

This plugin requires Gulp ~0.4.0

If you haven't used Gulp before, be sure to check out the Getting Started guide, as it explains how to create a Gulpfile as well as install and use Gulp plugins. Once you're familiar with that process, you may install this plugin with this command:

``shell
npm install gulp-csv-to-json --save-dev
`




The "csvjson" task

$3

This task builds JSON structures from key/value data defined in CSV format.
Multiple JSON resources can be defined per CSV document.

The following CSV document:

| key | bob | sue |
| ---- | ----- | ------ |
| name | Bob | Sue |
| sex | male | female |
| age | 54 | 24 |

Will generate two JSON resources:

`js
// dest/bob.json
{
"name": "Bob",
"sex": "male",
"age": 54
}

// dest/sue.json
{
"name": "Sue",
"sex": "female",
"age": 24
}
`

In your project's Gulpfile, add a section named csvjson to the data object passed into gulp.initConfig().

`js
var gulp = require('gulp');
var csv2json = require('gulp-csv-to-json');
var options = {};
gulp.task('csvToJson', function () {
return gulp
.src('src/*/.csv')
.pipe(csv2json(options))
.pipe(gulp.dest('dist'));
});
`




$3

#### options
Type: Object

CSV parser options: see node-csv-parse#parser-options.

`js
options = {
auto_parse : true
};
`


#### options.processValue
Type: Function

Hook to process field value.

`js
options = {
processValue: function (key, value) {
return value;
}
};
`




CSV format

The expected format is one row per value, with resource names defined in the first row,
and field keys in the first column.

| key | resource-a |
| ------- | ---------- |
| key-one | value-one |
| key-two | value-two |




$3

Object hierarchy is expressed with dot notation in the key.

The following data:

| key | bob |
| ----------- | ----- |
| person.name | Bob |
| person.sex | male |
| person.age | 54 |

Will generate:

`json
{
"person": {
"name": "Bob",
"sex": "male",
"age": 54
}
}
`




$3

Arrays of values can be implicitly defined by duplicating keys.

The following data:

| key | list |
| ------------- | ------- |
| shopping.day | Sunday |
| shopping.list | fruit |
| shopping.list | candy |
| shopping.list | pasta |
| shopping.list | spinach |

Will generate:

`json
{
"shopping": {
"day": "Sunday",
"list": ["fruit", "candy", "pasta", "spinach"]
}
}
`




$3

Arrays of values can be explicitly defined by using integer keys.

The following data:

| key | list |
| --------- | ------- |
| list.0.0 | fruit |
| list.0.1 | candy |
| list.1.0 | pasta |
| list.1.1 | spinach |

Will generate:

`json
{
"list": [
["fruit", "candy"],
["pasta", "spinach"]
]
}
``