├── README.md
├── Frontend
├── app.py
└── templates
│ └── home.html
└── Backend
└── api.py
/README.md:
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1 | # AutoComplete-Input-Elastic-Search-Python
2 | 
3 | * remember you can use regular expression query or match phrase prefix please see youtube video for demo
4 |
5 |
6 | #### Tutorial
7 | * https://www.youtube.com/watch?v=gDOu_Su1GqY
8 |
9 | Creating Auto Complete System Frontend Flask + Backend (Elastic Search)
10 |
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/Frontend/app.py:
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1 | from flask import Flask
2 | from flask import request,redirect,render_template,session
3 | import requests
4 | import base64
5 | import requests
6 |
7 | app = Flask(__name__)
8 |
9 |
10 | @app.route('/', methods=["GET", "POST"])
11 | def index():
12 | return render_template("home.html")
13 |
14 |
15 | @app.route('/pipe', methods=["GET", "POST"])
16 | def pipe():
17 | data = request.form.get("data")
18 | payload = {}
19 | headers= {}
20 | url = "http://127.0.0.1:4000/autocomplete?query="+str(data)
21 | response = requests.request("GET", url, headers=headers, data = payload)
22 | return response.json()
23 |
24 |
25 |
26 | if __name__ == "__main__":
27 | app.run(debug=True, port=5000)
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/Backend/api.py:
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1 | try:
2 | from flask import app,Flask
3 | from flask_restful import Resource, Api, reqparse
4 | import elasticsearch
5 | from elasticsearch import Elasticsearch
6 | import datetime
7 | import concurrent.futures
8 | import requests
9 | import json
10 | except Exception as e:
11 | print("Modules Missing {}".format(e))
12 |
13 |
14 | app = Flask(__name__)
15 | api = Api(app)
16 |
17 | #------------------------------------------------------------------------------------------------------------
18 |
19 | NODE_NAME = 'myelkfirst'
20 | es = Elasticsearch([{'host': 'localhost', 'port': 9200}])
21 |
22 | #------------------------------------------------------------------------------------------------------------
23 |
24 |
25 | """
26 | {
27 | "wildcard": {
28 | "title": {
29 | "value": "{}*".format(self.query)
30 | }
31 | }
32 | }
33 |
34 | """
35 |
36 |
37 | class Controller(Resource):
38 | def __init__(self):
39 | self.query = parser.parse_args().get("query", None)
40 | self.baseQuery ={
41 | "_source": [],
42 | "size": 0,
43 | "min_score": 0.5,
44 | "query": {
45 | "bool": {
46 | "must": [
47 | {
48 | "match_phrase_prefix": {
49 | "title": {
50 | "query": "{}".format(self.query)
51 | }
52 | }
53 | }
54 | ],
55 | "filter": [],
56 | "should": [],
57 | "must_not": []
58 | }
59 | },
60 | "aggs": {
61 | "auto_complete": {
62 | "terms": {
63 | "field": "title.keyword",
64 | "order": {
65 | "_count": "desc"
66 | },
67 | "size": 25
68 | }
69 | }
70 | }
71 | }
72 |
73 | def get(self):
74 | res = es.search(index=NODE_NAME, size=0, body=self.baseQuery)
75 | return res
76 |
77 |
78 | parser = reqparse.RequestParser()
79 | parser.add_argument("query", type=str, required=True, help="query parameter is Required ")
80 |
81 | api.add_resource(Controller, '/autocomplete')
82 |
83 |
84 | if __name__ == '__main__':
85 | app.run(debug=True, port=4000)
86 |
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/Frontend/templates/home.html:
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