aws-cli-input-yaml

#!/bin/bash
set -eu
set -o pipefail
PROGNAME="$(basename "$0")"

while [[ $# -gt 0 ]]; do
  case $1 in
    --command|-c)
      read -ra CMD <<<"$2"
      shift
      ;;
    --gen)
      GEN=1
      ;;
    *)
      FILE="$(realpath "$1")"
      ;;
  esac
  shift
done

generate-skelton() {
  echo "#!/usr/bin/env -S ${PROGNAME} -c '${CMD[*]}'"
  echo "---"
  aws "${CMD[@]}" --generate-cli-skeleton yaml-input
  echo "..."
}

if [[ -n "${GEN:-}" ]]; then
  if [[ -n "$FILE" ]]; then
    generate-skelton >"$FILE"
    chmod +x "$FILE"
  else
    generate-skelton
  fi
else
  if [[ -n "${FILE:-}" ]]; then
    aws "${CMD[@]}" --cli-input-yaml "file://$FILE"
  else
    echo "${PROGNAME}: FILE is not specified" >&2
    exit 1
  fi
fi

Usage:

$ awc-cli-input-yaml -c 'sqs send-messge' --gen foo.yml
$ vim foo.yml
$ ./foo.yml

The contents of foo.yml after executing awc-cli-input-yaml -c 'sqs send-messge' --gen foo.yml

#!/usr/bin/env aws-cli-input-yaml -c 'sqs send-message'
---
QueueUrl: ''  # [REQUIRED] The URL of the Amazon SQS queue to which a message is sent.
MessageBody: '' # [REQUIRED] The message to send.
DelaySeconds: 0 #  The length of time, in seconds, for which to delay a specific message.
MessageAttributes: # Each message attribute consists of a Name, Type, and Value.
  KeyName:
    StringValue: ''  # Strings are Unicode with UTF-8 binary encoding.
    BinaryValue: !!binary '' # Binary type attributes can store any binary data, such as compressed data, encrypted data, or images.
    StringListValues: # Not implemented.
    - ''
    BinaryListValues: # Not implemented.
    - !!binary ''
    DataType: '' # [REQUIRED] Amazon SQS supports the following logical data types.
MessageSystemAttributes: # The message system attribute to send.
  KeyName:
    StringValue: ''  # Strings are Unicode with UTF-8 binary encoding.
    BinaryValue: !!binary '' # Binary type attributes can store any binary data, such as compressed data, encrypted data, or images.
    StringListValues: # Not implemented.
    - ''
    BinaryListValues: # Not implemented.
    - !!binary ''
    DataType: '' # [REQUIRED] Amazon SQS supports the following logical data types.
MessageDeduplicationId: '' # This parameter applies only to FIFO (first-in-first-out) queues.
MessageGroupId: '' # This parameter applies only to FIFO (first-in-first-out) queues.
...