{ "cells": [ { "cell_type": "markdown", "id": "5b285400-a3a1-410e-9e20-6df4f5e2429e", "metadata": {}, "source": [ "# Influxdb\n" ] }, { "cell_type": "markdown", "id": "8101cd24-d68a-422c-a81a-6c7c81fa08c1", "metadata": {}, "source": [ "Influx DB ist eine Zeitserien Datenbank.\n", "Zum Schreiben und lesen von Daten in der Datenbank gibt es 2 verschiedene Schnitstellen. Eine SQL ähnliche Kommandosprache InfluxQl und eine funktionale Sprache Flux\n", "\n", "Der Influxdb containr ist über http://localhost:8086 erreichbar" ] }, { "cell_type": "markdown", "id": "ee8de7a5-722f-4b03-ab00-8aeea2f1a596", "metadata": {}, "source": [ "## Daten in InfluxDB eintragen\n", "Als erstes den Client initialisieren" ] }, { "cell_type": "code", "execution_count": 16, "id": "de26a902-5d7d-4db6-a62d-9a6287c60df4", "metadata": {}, "outputs": [], "source": [ "from datetime import datetime\n", "\n", "from influxdb_client import InfluxDBClient, Point, WritePrecision\n", "from influxdb_client.client.write_api import SYNCHRONOUS\n", "\n", "# You can generate an API token from the \"API Tokens Tab\" in the UI\n", "token = \"wb4s191jc33JQ4a6wK3ZECwrrG3LuSyQd61akFa_q6ZCEsequUvFhL9Gre6FaZMA2ElCylKz26ByJ6RetkQaGQ==\"\n", "org = \"test-org\"\n", "bucket = \"test\"\n", "\n", "with InfluxDBClient(url=\"http://influxdb:8086\", token=token, org=org) as client:\n", " write_api = client.write_api(write_options=SYNCHRONOUS)\n", " data = \"mem,host=host1 used_percent=23.43234543\"\n", " write_api.write(bucket, org, data)\n", "client.close()\n", "\n", "\n" ] }, { "cell_type": "markdown", "id": "28ebb2bd-2efe-49b7-a4e9-2ad8dd48ce79", "metadata": {}, "source": [ "Daten schreiben" ] }, { "cell_type": "code", "execution_count": 38, "id": "b2a761f7-9541-4935-9ccd-e467214e9ea5", "metadata": {}, "outputs": [], "source": [ "client = InfluxDBClient(url=url, token=token, org=org)\n", "\n", "\n", "write_api = client.write_api(write_options=SYNCHRONOUS)\n", "query_api = client.query_api()\n", "\n", "a = datetime(2017, 11, 28, 23, 55, 59)\n", "\n", "p = Point(\"my_measurement\").tag(\"location\", \"Prague\").field(\"temperature\", 25.3).time(a,WritePrecision.S)\n", "\n", "write_api.write(bucket=bucket, record=p)" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3 (ipykernel)", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.9.10" } }, "nbformat": 4, "nbformat_minor": 5 }