Find and use dashboards in Grafana Cloud

#!/usr/bin/env bash

set -eo pipefail

SOURCE_GRAFANA_ENDPOINT='source_grafana_endpoint_here'
SOURCE_GRAFANA_API_KEY='source_grafana_api_key_here'
DEST_GRAFANA_API_KEY='dest_grafana_api_key_here'
DEST_GRAFANA_ENDPOINT='dest_grafana_endpoint_here'
TEMP_DIR=TEMP_DIR_NAME_HERE

if ! command -v curl &> /dev/null
then
    echo "Please install curl before running this script" && exit 1
fi

if ! command -v jq &> /dev/null
then
    echo "Please install jq before running this script" && exit 1
fi

function usage() {
    echo "Usage: ${0} -e -i" >&2
}

if [[ $# -eq 0 ]]; then
    usage
    exit 1
fi

while getopts "ei" opt; do
    case "${opt}" in
        e)
            export_dash="true"
            ;;
        i)
            import_dash="true"
            ;;
        *)
            usage
            exit 1
            ;;
    esac
done

if [[ "${export_dash}" == "true" ]]; then
    echo "Creating ${TEMP_DIR}"
    mkdir -p ${TEMP_DIR} && pushd  "$_" > /dev/null

    echo "Downloading dash-db"
    curl -sSH "Authorization: Bearer ${SOURCE_GRAFANA_API_KEY}" \
         -H "Content-Type: application/json" \
         -d '{"type":"dash-db"}' \
         -X GET \
         "${SOURCE_GRAFANA_ENDPOINT}/api/search" > dashboards.json
    echo "Downloaded dash-db"

    for uid in $(jq -r ".[].uid" dashboards.json); do
        echo "Downloading ${uid}"
        curl -sSH "Authorization: Bearer ${SOURCE_GRAFANA_API_KEY}" \
             -X GET \
             "${SOURCE_GRAFANA_ENDPOINT}/api/dashboards/uid/${uid}" > "dashboard.${uid}.json"
        echo "Downloaded $(jq .dashboard.title dashboard."${uid}".json)"
    done

    popd > /dev/null
fi

if [[ "${import_dash}" == "true" ]]; then
    if [ ! -d "${TEMP_DIR}" ]; then
        echo "${TEMP_DIR} doesn't exist" && exit 1
    fi

    pushd "${TEMP_DIR}" > /dev/null

    if ! compgen -G "dashboard.*.json" > /dev/null; then
        echo "No dashboard.*.json files in ${TEMP_DIR}" && exit 1
    fi

    for dashboard in dashboard.*.json; do
        echo "Uploading $(jq .dashboard.title "${dashboard}") to Grafana"
        dashboard_json='{"dashboard": '"$(jq '.dashboard | del(.id)' "${dashboard}")}"
        curl -sSH "Content-Type: application/json" \
             -H "Authorization: Bearer $DEST_GRAFANA_API_KEY" \
             -d "${dashboard_json}" "${DEST_GRAFANA_ENDPOINT}/api/dashboards/db"
        echo
    done
fi