Bash functions for interacting with the Cloudflare v4 API

cloudflare.inc.sh

#!/usr/bin/env bash
export CF_CURL_OPTS=()
export CF_V4_API='https://api.cloudflare.com/client/v4'

_cf_exit() {
  # if being called directly, don't exit
  if [ ${#FUNCNAME[@]} -eq 0 ]; then
    return 1
  fi
  exit 1
}

cf_auth() {
  if [[ -n $CLOUDFLARE_API_TOKEN ]]; then
    CF_CURL_OPTS=( -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" )
  elif [[ -z $CLOUDFLARE_API_KEY ]] && [[ -z $CLOUDFLARE_EMAIL ]]; then
    printf 'Unable to find CLOUDFLARE_API_TOKEN or CLOUDFLARE_API_KEY + CLOUDFLARE_EMAIL. Please see:\n'
    printf '     https://support.cloudflare.com/hc/en-us/articles/200167836-Managing-API-Tokens-and-Keys\n'
    printf '     https://www.terraform.io/docs/providers/cloudflare/index.html\n'
    _cf_exit || return 1
  else
    CF_CURL_OPTS=( -H "X-Auth-Email: $CLOUDFLARE_EMAIL" -H "X-Auth-Key: $CLOUDFLARE_API_KEY" )
  fi

  export CF_CURL_OPTS
}

cf_get() {
  if ! cf_auth; then return 1; fi

  local ep="$1"
  shift

  local params
  local resp

  if [[ $# -gt 0 ]]; then
    params+='?'
  fi

  for param in "$@"; do
    if [[ $params == '?' ]]; then
      params+="${param}"
    else
      params+='&'
      params+="${param}"
    fi
  done


  resp="$(curl -s "${CF_CURL_OPTS[@]}" -X GET "${CF_V4_API}/${ep}${params}")"
  success="$(jq -crj '.success' <<< "$resp")"

  if [[ $success == 'true' ]]; then
    printf '%s' "$resp"
  else
    jq -crj '.errors' <<< "$resp"
    _cf_exit || return 1
  fi
 }

cf_get_all() {
  local ep="$1"
  shift

  local -i page=1
  local per_page="${CF_PER_PAGE:-20}"

  local resp
  local count
  local resources

  while true; do
    if resp="$(cf_get "${ep}" "page=${page}" "per_page=${per_page}" "$@")"; then
      count="$(jq -crj '.result_info.count' <<< "$resp")"
      resources+="$(jq -crj '.result[]' <<< "$resp")"

      if [[ $count -lt $per_page ]]; then break; fi

      (( page++ ))
      continue
    else # cf_get returned non-0
      printf '%s' "$resp"
      _cf_exit || return 1
    fi
  done

  echo "$resources"
}