Add blog post about NoSQL datastores

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Noémi Ványi 2021-07-13 23:39:24 +02:00
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command-line-engines command-line-engines
search-indexer-engines search-indexer-engines
sql-engines sql-engines
search-database-engines

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===============================
Query more of your NoSQL stores
===============================
From now on, searx lets you to query your NoSQL data stores:
* `Redis`_
* `MongoDB`_
The reference configuration of the engines are included ``settings.yml`` just commented out,
as you have to set various options and install dependencies before using them.
By default, the engines use ``key-value`` template for displaying results.
If you are not satisfied with the original result layout,
you can use your owm template by placing the template under
``searx/templates/{theme_name}/result_templates/{template_name}`` and setting
``result_template`` attribute to ``{template_name}``.
Futhermore, if you do not want to expose these engines on a public instance, you can
still add them and limit the access by setting ``tokens`` as described in the `blog post about
private engines`_.
Configuring searx to use the stores
===================================
NoSQL data stores are used for storing arbitrary data without first defining their
structure.
Redis
-----
Reqired package: ``redis``
Redis is a key value based data store usually stored in memory.
Select a database to search in and set its index in the option ``db``. You can
either look for exact matches or use partial keywords to find what you are looking for
by configuring ``exact_match_only``.
In this example you can search for exact matches in your first database:
.. code:: yaml
- name : mystore
engine : redis_server
exact_match_only : True
host : 127.0.0.1
port : 6379
password : secret-password
db : 0
shortcut : rds
enable_http : True
MongoDB
-------
Required package: ``pymongo``
MongoDB is a document based database program that handles JSON like data.
In order to query MongoDB, you have to select a ``database`` and a ``collection``. Furthermore,
you have to select a ``key`` that is going to be searched. MongoDB also supports the option ``exact_match_only``, so configure it
as you wish.
Above is an example configuration for using a MongoDB collection:
.. code:: yaml
- name : mymongo
engine : mongodb
shortcut : md
host : '127.0.0.1'
port : 27017
database : personal
collection : income
key : month
enable_http: True
Acknowledgement
===============
This development was sponsored by `Search and Discovery Fund`_ of `NLnet Foundation`_ .
.. _Redis: https://redis.io/
.. _MongoDB: https://mongodb.com/
.. _blog post about private engines: private-engines.html#private-engines
.. _Search and Discovery Fund: https://nlnet.nl/discovery
.. _NLnet Foundation: https://nlnet.nl/
| Happy hacking.
| kvch // 2021.07.13 23:16