submit a set of standard expenses for a number of offsets

expense.sh

#!/usr/bin/env bash

set -eu -o pipefail

#Expects the following environment variables to be set
#EXPENSIFY_PARTNER_USER_ID=
#EXPENSIFY_PARTNER_USER_SECRET=
#EXPENSIFY_EMPLOYEE_EMAIL=
#EXPENSIFY_SERVER="https://integrations.expensify.com"


offsets=("$@")
dates=()

if [ -z "$offsets" ]; then
	echo -n "Enter the offsets in days or weeks (-2w, +1w,…) then press [ENTER]: "
	read -a offsets
	if [ -z "$offsets" ]; then
		offsets=("+0w")
	fi
fi
for offset in "${offsets[@]}"; do
	for day in Mon Tue Wed;	do
		dates+=( $(date -v "$offset" -v "$day" +%Y-%m-%d) )
	done
done

for date in "${dates[@]}"; do
	curl -X POST --fail "$EXPENSIFY_SERVER/Integration-Server/ExpensifyIntegrations" \
	    --data-urlencode 'requestJobDescription={
	        "type":"create",
	        "credentials":{
	            "partnerUserID": "'"$EXPENSIFY_PARTNER_USER_ID"'",
	            "partnerUserSecret": "'"$EXPENSIFY_PARTNER_USER_SECRET"'"
	        },
	        "inputSettings":{
	            "type":"expenses",
	            "employeeEmail": "'"$EXPENSIFY_EMPLOYEE_EMAIL"'",
	            "transactionList": [
	                {
	                    "created": "'"$date"'",
	                    "currency": "EUR",
	                    "merchant": "20 km @ €0.3 / km",  
	                    "amount": 600,
	                    "category": "Mileage/Parking/Tolls",
	                    "tag": "Client Name goes gere:Travel",
	                    "billable": false,
	                    "reimbursable": true,
	                    "comment": "last mile between home and train station in the morning and evening"                           
	                },
	                {
	                    "created": "'"$date"'",
	                    "currency": "EUR",
	                    "merchant": "1 * Germany Day Trip > 8 Hours @ €12.00",  
	                    "amount": 1200,
	                    "category": "Per Diem/Stipend (pre-approved)",
	                    "tag": "Client Name goes gere:Travel",                     
	                    "billable": false,
	                    "reimbursable": true,
	                    "comment": "Day at the client office"                           
	                }
	            ]
	        }
	    }'
done

I think the script would be much more secure by adding set -eu -o pipefail to the top, and --fail to the curl call.