how to handle db connectivity of couchdb with gwt? - gwt

Question

I am new to couchdb and I want to learn about how to connect the couchdb in our gwt server side program. till now, I tried to work on its gui to create database add documents and add fields to it.but i am not able to use it in program. what exactly the way to do it..
I tried some code but didn't got it.

Answer 1

In your GWT you should have something like this in your server. Besides it you should have your DAO for your Entities (erktorp takes place here) and your mechanism for connecting GWT's client with the server (for example RequestFactory).
//Object of your own related with couch db management
CouchDbAccess couchDbAccess = null;
#Inject
public CouchDbManagement(String ddbbUrl, String ddbbName) throws IOException {
HttpClient httpClient;
Builder b;
try {
b = new StdHttpClient.Builder().url(ddbbUrl);
} catch (Exception e) {
e.printStackTrace();
ddbbUrl = "http://admin:sa#localhost:5984";
b = new StdHttpClient.Builder();
}
b.socketTimeout(60000);
String user = getUserFrom(ddbbUrl);
String pass = getPassFrom(ddbbUrl);
b.username(user).password(pass);
httpClient = b.build();
CouchDbInstance dbInstance = new StdCouchDbInstance(httpClient);
if (initialize && dbInstance.getAllDatabases().contains(ddbbName)) {
dbInstance.deleteDatabase(ddbbName);
dbInstance = new StdCouchDbInstance(httpClient);
}
//If you want Lucene, here is the place
db.createDatabaseIfNotExists();
new IndexUploader().updateSearchFunctionIfNecessary(db, ...);
new IndexUploader().updateSearchFunctionIfNecessary(db, ...);
URI dbURI = URI.prototype(DbPath.fromString(ddbbName).getPath());
RestTemplate restTemplate = new RestTemplate(dbInstance.getConnection());
couchDbAccess = new CouchDbAccess(db, dbURI, restTemplate);
}

Answer 2

Couchdb has a restful interface to it's api. Everything is available via url's like
http://localhost:5984/db_name/doc_name
In fact the entire http api is documented in the wiki. Now I am not familiar with gwt but every framework has http libraries and you can use those libraries to make calls to couchdb http endpoints.
A quick google search gave me this resource which may guide you on how to create http requests through gwt.