Backup File to Backblaze

backup.sh

#!/bin/bash

# Requires: curl, jq

# apt install curl jq
# dnf install curl jq
# yum install curl jq
# pacman -S curl jq

AUTH_HEADER="Basic [AUTH KEY]" # https://www.backblaze.com/apidocs/b2-authorize-account

FILE_TO_UPLOAD="[FILE PATH]" # /home/mtr/Downloads/test.sql
FILENAME_TO_UPLOAD="[FILE WITHOUT PATH]" # test.sql

# If the file is being generated, put code here!

# mysqldump database > /home/mtr/Downloads/test.sql

# First, hash file for verification.
SHA_OF_FILE=$(openssl dgst -sha1 $FILE_TO_UPLOAD | awk '{print $2;}')

# Authorize with Backblaze
RESPONSE=$(curl "https://api.backblazeb2.com/b2api/v2/b2_authorize_account" \
    -H "Authorization: ${AUTH_HEADER}")
# Clip JSON response
AUTH_TOKEN=$(echo $RESPONSE | jq .authorizationToken -r)
API_URL=$(echo $RESPONSE | jq .apiUrl -r)
ALLOWED_BUCKET=$(echo $RESPONSE | jq .allowed.bucketId -r)
echo $API_URL

# Get upload URL
UPLOAD_URL=$(curl "${API_URL}/b2api/v2/b2_get_upload_url?bucketId=${ALLOWED_BUCKET}" \
    -H "Content-Type: application/json" \
    -H "Authorization: ${AUTH_TOKEN}")
# Clip JSON response
ALLOWED_UPLOAD_URL=$(echo $UPLOAD_URL | jq .uploadUrl -r)
UPLOAD_AUTH_TOKEN=$(echo $UPLOAD_URL | jq .authorizationToken -r)
echo $ALLOWED_UPLOAD_URL

# Finally, upload file
curl "${ALLOWED_UPLOAD_URL}" \
    -H "Authorization: ${UPLOAD_AUTH_TOKEN}" \
    -H "X-Bz-File-Name: ${FILENAME_TO_UPLOAD}" \
    -H "Content-Type: b2/x-auto" \
    -H "X-Bz-Content-Sha1: ${SHA_OF_FILE}" \
    -H "X-Bz-Info-Author: unknown" \
    --data-binary "@${FILE_TO_UPLOAD}"

# You can repeat this snippet for how many files you would like to upload.