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title: 'Python Flask API Using MongoDB'
date: '2021-01-30T07:19:56-06:00'
status: publish
permalink: /python-flask-api-using-mongodb
author: admin
excerpt: ''
type: post
id: 1715
    - API
    - Flask
    - MongoDB
    - Python
tag: []
post_format: []

Python Flask API Using MongoDB

After a recent experiment I did to capture the output of jobs with json output from multiple server's to a central collector, I kept my notes for future reference. In short I used my restic backup json format to submit into MOngoDB via a little custom API.

The notes are showing scripts I used whihc of course may not work in your environment they are for reference only.


  • ubuntu 20.10 virtualbox host (use my snapshot called pre-setup)
  • run from ~/mongodb-api
  • run python3 from ~/mongodb-api
  • run python3 from ~/mongodb-api
  • test GET and POST with postman from my desktop

source code

```bash $ more :::::::::::::: ::::::::::::::


sudo apt install -y gnupg python3-pip python3-flask python3-flask-mongoengine python3-virtualenv sudo pip install flask pymongo flask_pymongo sudo snap install robo3t-snap

wget -qO - | sudo apt-key add - echo "deb [ arch=amd64,arm64 ] focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list sudo apt-get update sudo apt-get install -y mongodb-org ps --no-headers -o comm 1 sudo systemctl start mongod sudo systemctl status mongod sudo systemctl enable mongod

cd mongodb-api virtualenv -p python3 venv source venv/bin/activate

run in a new terminal one time


run in this terminal after db created


:::::::::::::: ::::::::::::::

from pymongo import MongoClient

client = MongoClient('mongodb://localhost:27017/')

mydb = client['restic-db']

import datetime

example json output from a restic backup run


myrecord = { "message_type": "summary", "files_new":2, "files_changed":1, "files_unmodified":205021, "dirs_new":0, "dirs_changed":6, "dirs_unmodified":28000, "data_blobs":3, "tree_blobs":7, "data_added":17802, "total_files_processed":205024, "total_bytes_processed":6002872966, "total_duration":29.527921058, "snapshot_id":"84de0f00", "tags" : ["prod", "daily", "weekly"], "date_inserted" : datetime.datetime.utcnow(), "hostname" : "desktop01" }

record_id = mydb.logs.insert_one(myrecord)

print (record_id) print (mydb.list_collection_names()) :::::::::::::: ::::::::::::::

from flask import Flask from flask import jsonify from flask import request from flask_pymongo import PyMongo

app = Flask(name)

app.config['MONGO_DBNAME'] = 'restic-db' app.config['MONGO_URI'] = 'mongodb://localhost:27017/restic-db'

mongo = PyMongo(app)

@app.route('/') def index(): return jsonify({'result' : 'v0.9.0'})

@app.route('/entry', methods=['GET']) def get_all_entries(): entry = mongo.db.logs output = [] for s in entry.find(): output.append({'hostname' : s['hostname'], 'message_type' : s['message_type']}) return jsonify({'result' : output})

@app.route('/entry/', methods=['GET']) def get_one_entry(hostname): entry = mongo.db.logs s = entry.find_one({'hostname' : hostname}) if s: output = {'hostname' : s['hostname'], 'message_type' : s['message_type']} else: output = "No such hostname" return jsonify({'result' : output})

@app.route('/entry', methods=['POST']) def add_entry(): entry = mongo.db.logs #details = request.get_json() #hostname = details["hostname"] hostname = request.json['hostname'] #hostname = "'" + str(request.values.get("hostname")) + "'" message_type = request.json['message_type'] #message_type = "'" + str(request.values.get("message_type")) + "'" #message_type = details.message_type

import datetime

## example json output from a restic backup run #{"message_type":"summary","files_new":2,"files_changed":1,"files_unmodified":205021,"dirs_new":0,"dirs_changed":6,"dirs_unmodified":28000,"data_blobs":3,"tree_blobs":7,"data_added":17802,"total_files_processed":205024,"total_bytes_processed":6002872966,"total_duration":29.527921058,"snapshot_id":"84de0f00"}

myrecord = { "message_type": message_type, "files_new":2, "files_changed":1, "files_unmodified":205021, "dirs_new":0, "dirs_changed":6, "dirs_unmodified":28000, "data_blobs":3, "tree_blobs":7, "data_added":17802, "total_files_processed":205024, "total_bytes_processed":6002872966, "total_duration":29.527921058, "snapshot_id":"84de0f00", "tags" : ["prod", "daily", "weekly"], "date_inserted" : datetime.datetime.utcnow(), "hostname" : hostname }

#entry_id = entry.insert_one({'hostname': hostname, 'message_type': message_type}) entry_id = entry.insert_one(myrecord)

new_entry = entry.find_one({'_id': entry_id.inserted_id }) output = {'hostname' : new_entry['hostname'], 'message_type' : new_entry['message_type']} return jsonify({'result' : output})

if name == 'main': (host = "", port = 5000) ````

Test API's from my desktop using Postman