Elasticsearch viewable by Flask

lukaszkuczynski profile image lukaszkuczynski ・2 min read

API for ES - why

So what is the goal? I want to have small app, that will allow greedy HR workers to explore Projects I took part in. I believe, one's experience is the most important feature of future (IT) worker; school was long time ago, courses are OK but who knows who helped to accomplish them?

Python for APIs

Working with some small projects using Django, I believe it's nice framework for web apps. But do we need always some full-featured machine like that? No. Sometimes microservice is ready to be written in few lines. How so?

from flask import Flask
app = Flask(__name__)

def hello():
    return "Hello World!"

Yeah, that is everything to write the service that is listening on port 5000 if you will run it with

FLASK_APP=hello.py flask run

That's all folks.

Elasticsearch managed by py

It was fun implementing searching in py official library for ES. It is easy as following:

from elasticsearch import Elasticsearch
es = Elasticsearch()
response = self.es.search(index=INDEX_PATTERN, doc_type=PROJECT_DOCTYPE, q=lucene_query)

Response is regular json so using pythonic dicts it accessing it's body will be possible.

Python + ES = fast API work

Even having TDD approach I was able to expose search functionality for my future webapp in 2 or 3 hours. Integration testing is also easy as this flask-testing and elastic-testing examples show. All results visible so far on my github project page.


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