Csw-client NPM

csw-client

A very simple CSW client

Prerequisite

Node.js >= 8.0

Features

Fetch capabilities
Fetch records
Harvest (w/ Stream API)
Support ISO 19139 (including Inspire profile)
Support Dublin Core

Installation

npm install csw-client

Usage

Create a client

const csw = require('csw-client');
const client = csw('http://your-csw-server.tld/csw', options);

Options

Name	Description	Type	Default value
`userAgent`	User-Agent string you want to use in requests	`string`	`"CSWBot"`
`gzip`	enable compression	`boolean`	`true`
`timeout`	requests will fail after X ms	`integer`	disabled

Harvest

Stream API

client.harvest(options).pipe(outputStream);

Alternative

client.harvest(options)
    .on('record', record => console.log(record.type))
    .on('error', err => console.error(err))
    .on('end', () => console.log('Finished!'))
    .resume();

Options

Name	Description	Type	Default value
`step`	number of records asked by `GetRecords` request	`integer`	`20`
`concurrency`	number of concurrent `GetRecords` requests	`integer`	`5`

Events

Name	Description	Properties
`record`	a new record is found	`type`: record type`body`: parsed value
`started`	harvesting has started	none
`failed`	harvesting has failed	none
`end`	harvesting has ended	none