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Asynchronous elasticsearch backend - part of Wallaby. The couchDB application framework.

Project description

wallaby-backend-elasticsearch
=============================

This package provides an asynchronous python interface to elasticsearch (using twisted).

For more information on wallaby visit http://wlby.freshx.de

Installation
============

You can install the elasticsearch backend with pip

```bash
pip install wallaby-backend-elasticsearch
```

How to use
==========

The library is based on twisted's asynchronous pattern. To use the library in an asynchronous fassion you
first need to create an reactor based application:

```python
from twisted.internet import defer

@defer.inlineCallbacks
def run():
# wait 1 second
d = defer.Deferred()
reactor.callLater(1.0, d.callback)
yield d

# stop the reactor and quit the application
reactor.stop()

from twisted.internet import reactor
reactor.callWhenRunning(run)
reactor.run()
```

Now we can connect to an existing elasticsearch cluster:

```python
@defer.inlineCallbacks
def run():
# Create elasticsearch client object
from wallaby.backends.elasticsearch import Connection
es = Connection(
baseURL="http://localhost:9200",
index="<name of index>",
username="<username>",
password="<password>",
)

# Send query
res = yield es.doQuery({
"query": {
"query_string": {
"query": "*"
}
}
})

# stop the reactor and quit the application
reactor.stop()
```

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