https://github.com/gbv/ng-sru

Experimental SRU 1.2 client as AngularJS service
https://github.com/gbv/ng-sru

Last synced: 20 days ago
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Experimental SRU 1.2 client as AngularJS service

• Host: GitHub
• URL: https://github.com/gbv/ng-sru
• Owner: gbv
• Created: 2015-02-10T08:58:13.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-02-11T16:28:50.000Z (almost 10 years ago)
• Last Synced: 2024-12-09T20:41:57.100Z (about 2 months ago)
• Language: JavaScript
• Size: 152 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
This repository contains the draft of JavaScript client for the

[Search/Retrieve via URL (SRU)](http://www.loc.gov/standards/sru/) protocol.

The current client is based on [AngularJS](https://angularjs.org/) 1.3, a later

version may also be usable server-side with [node.js](https://nodejs.org/).

## Installation

### bower

```bash

bower install ng-sru --save

```

## Usage

See `demo/index.html`.

## Overview

* `demo/index.html` - sample application

* `ng-sru.js` - AngularJS module

* `microxml.js` - helper module, required by ng-sru.js

## Enabling client-side SRU

To access an SRU-server via client-side JavaScript the server either has to

share a common domain name with the client application or send the

`Access-Control-Allow-Origin` header to support Cross-Origin Resource Sharing

(CORS). This can be achieved by putting the SRU server behind a HTTP proxy:

*the following notes are not tested yet!*

### Apache as CORS proxy

```.bash

$ sudo a2enmod proxy proxy_http headers

$ sudo vim /etc/apache2/mods-enabled/proxy.conf

...

Header add Access-Control-Allow-Origin "*"

Header add Access-Control-Allow-Headers "DNT,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type"

Header add Access-Control-Allow-Methods "GET, OPTIONS"

...

```

### nginx as CORS proxy

```

location /some-path {

    if ($request_method = 'OPTIONS') {

        add_header Access-Control-Allow-Origin "*";

        add_header Access-Control-Allow-Methods "GET, OPTIONS";

        add_header Access-Control-Allow-Headers "DNT,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type";

        add_header Content-Type "text/plain";

        add_header Content-Lengt' 0;

        return 204;

    }

    if ($request_method = 'GET') {

        add_header Access-Control-Allow-Origin "*";

        add_header Access-Control-Allow-Methods "GET, OPTIONS";

        add_header Access-Control-Allow-Headers "DNT,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type";

        proxy_passs http://$arg_uri; # customize this. current setting uses any URI passed as "?uri="

        # proxy_hide_header Access-Control-Allow-Origin;

     }

}

```