nodejs validator for csv file
- Parse csv (supports only file as of now) and convert to json array
- Validate each line with type or RegExp
- Return each line's error with error message
- Support callback and promise
- Non-blocking parsing
npm install csv-validator --saveWithout errors:
/** csv file
name,phone,email,country
john,123,john@ph.com,PH
doe,456,doe@us.com,US
*/
const csv = require('csv-validator');
const csvFilePath = '<path to csv file>';
const headers = {
name: '', // any string
phone: 1, // any number
email: /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/, // RegExp
_country: '' // add '_' as first character of the key to indicate as optional
};
csv(csvFilePath, headers)
.then(console.log) // [ { name: 'john', phone: '123', email: 'john@ph.com', country: 'PH' }, { name: 'doe', phone: '456', email: 'doe@us.com', country: 'US' } ]With error:
/** csv file
name,phone,email,country
john,123a,john@ph.com,PH
doe,456,doe@us.com
*/
const csv = require('csv-validator');
const csvFilePath = '<path to csv file>';
const headers = {
name: '', // any string
phone: 1, // any number
email: /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/, // RegExp
country: '' // add '_' as first character of the key to indicate as optional
};
csv(csvFilePath, headers)
.then(console.log)
.catch(console.error) // [ 'Row 1: phone must be a type number', 'Row 2: country is required' ]Error messages:
- ... must be a type number: the column should be a number
- ... is required: the column should be filled
- ... must be in /^[0-9]?.*/: the column should be in RegExp (in this example: /^[0-9]?$/)
- Any pull request for new features and bug fixes is appreciated.
- Just make sure to add test.
MIT