List, create and push to buckets in S3 using boto3

boto3_experiments.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
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   "source": [
    "import boto3"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "# low level connector\n",
    "s3_client = boto3.client('s3')\n",
    "\n",
    "# high level connector\n",
    "s3_resource = boto3.resource('s3')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [],
   "source": [
    "allBuckets = s3_resource.buckets.all()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "# programmatic bucket creation\n",
    "def createBucket(bucketName):\n",
    "    s3_resource.create_bucket(Bucket=bucketName, CreateBucketConfiguration={\n",
    "        'LocationConstraint': 'ap-south-1'\n",
    "    })"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [],
   "source": [
    "# programmatic deletion of bucket\n",
    "def deleteBucket(bucketName):\n",
    "    s3_resource.Bucket(bucketName).objects.all().delete()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "318\n"
     ]
    }
   ],
   "source": [
    "# how many buckets are there\n",
    "nBuckets = sum(1 for _ in allBuckets)\n",
    "print(nBuckets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [],
   "source": [
    "# creating new files in S3 bucket\n",
    "def writeFileToS3(bucketName, prefix, fileName):\n",
    "    # prefix should be like 'sub-folder/'\n",
    "    s3_resource.Object(bucketName, prefix + fileName).put(Body=\"hello*hotstar\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [],
   "source": [
    "writeFileToS3('rounak-test', 'temp-dir/', 'watchme')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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