node-sudoc

A nodejs wrapper around sudoc web services (issn2ppn, isbn2ppn, ean2ppn)

## Installation
``shell
npm install sudoc
`

Usage

$3


`javascript
let sudoc = require('sudoc');

sudoc.issn2ppn('0182-2012', (err, result) => {
console.log(result); // { query: { issn: '0182-2012', result: { ppn: '001014692' } } }
});

sudoc.issn2ppn(['0182-2012', '0774-3122'], (err, result) => {
console.log(result);
// [
// { query: { issn: '0182-2012', result: { ppn: '001014692'} } },
// { query: { issn: '0774-3122', result: { ppn: '000928151'} } }
// ]
});
`

$3

`javascript
let sudoc = require('sudoc');

sudoc.issn2ppn('0182-2012').then(result => {
console.log(result); // { query: { issn: '0182-2012', result: { ppn: '001014692' } } }
})
.catch(err => {
console.error(err);
});

sudoc.issn2ppn(['0182-2012', '0774-3122'])
.then(result => {
console.log(result);
// [
// { query: { issn: '0182-2012', result: { ppn: '001014692'} } },
// { query: { issn: '0774-3122', result: { ppn: '000928151'} } }
// ]
}).catch(err => {
console.error(err);
});
``

Methods

All the available methods work the same way, they accept either a single string or an array, and support promises as well as callbacks.

- issn2ppn(issn[, callback])
- isbn2ppn(isbn[, callback])
- ean2ppn(ean[, callback])