创意工坊 — 键帽 API

# 第一段：生成 1 张成品键帽设计效果图
curl https://api.meshy.ai/openapi/creative-lab/keycap/v1/prototype \
  -X POST \
  -H "Authorization: Bearer ${YOUR_API_KEY}" \
  -H 'Content-Type: application/json' \
  -d '{
    "image_url": "<your publicly accessible image url or base64-encoded data URI>"
  }'

# 第二段：把选定候选构建成 3D 键帽
curl https://api.meshy.ai/openapi/creative-lab/keycap/v1/build \
  -X POST \
  -H "Authorization: Bearer ${YOUR_API_KEY}" \
  -H 'Content-Type: application/json' \
  -d '{
    "input_task_id": "019c9a4e-2b31-7f6a-8c44-5d2a87b3c1ef",
    "candidate_id": "0198c1b2-33f5-7d21-a4b7-8e9d0c1f2a3b",
    "options": {
      "base_model": "cherry-mx-1x1-r1",
      "head_size_mm": 23,
      "vertical_offset_mm": 0
    }
  }'

# Prototype
curl https://api.meshy.ai/openapi/creative-lab/keycap/v1/prototype/019c9a4e-2b31-7f6a-8c44-5d2a87b3c1ef \
  -H "Authorization: Bearer ${YOUR_API_KEY}"

# Build
curl https://api.meshy.ai/openapi/creative-lab/keycap/v1/build/019c9a52-7d18-7e2b-9f01-6e3b98c4d2af \
  -H "Authorization: Bearer ${YOUR_API_KEY}"

curl --request DELETE \
  --url https://api.meshy.ai/openapi/creative-lab/keycap/v1/prototype/019c9a4e-2b31-7f6a-8c44-5d2a87b3c1ef \
  -H "Authorization: Bearer ${YOUR_API_KEY}"

curl -N https://api.meshy.ai/openapi/creative-lab/keycap/v1/build/019c9a52-7d18-7e2b-9f01-6e3b98c4d2af/stream \
-H "Authorization: Bearer ${YOUR_API_KEY}"

# 列出 prototype 任务
curl https://api.meshy.ai/openapi/creative-lab/keycap/v1/prototype?page_size=10 \
  -H "Authorization: Bearer ${YOUR_API_KEY}"

# 列出 build 任务
curl https://api.meshy.ai/openapi/creative-lab/keycap/v1/build?page_size=10 \
  -H "Authorization: Bearer ${YOUR_API_KEY}"

#!/usr/bin/env bash
set -euo pipefail

# 需要 curl 与 jq。把 IMAGE_PATH 指向本地照片，或把 IMAGE_URL 指向公网图片：
#   export MESHY_API_KEY=msy_...
#   export IMAGE_PATH=./portrait.jpg          # or: export IMAGE_URL=https://...
: "${MESHY_API_KEY:?export MESHY_API_KEY first}"
if [[ -z "${IMAGE_PATH:-}" && -z "${IMAGE_URL:-}" ]]; then
  echo "export IMAGE_PATH (local file) or IMAGE_URL (public url) first" >&2
  exit 1
fi

BASE="https://api.meshy.ai/openapi/creative-lab/keycap/v1"
AUTH="Authorization: Bearer $MESHY_API_KEY"

# api METHOD URL [curl 参数...] -> 打印响应体，失败时返回非 0。
# 注意这里不用 -f/--fail：它会把响应体丢掉，而原因只出现在响应体里。
api() {
  local method=$1 url=$2 out http_code body
  shift 2
  out=$(curl --silent --show-error --max-time 60 --write-out $'\n%{http_code}' \
    -X "$method" "$url" -H "$AUTH" "$@") || return 1
  http_code=${out##*$'\n'}
  body=${out%$'\n'*}
  if ((http_code >= 400)); then
    echo "HTTP $http_code for $url: $body" >&2
    return 1
  fi
  printf '%s' "$body"
}

# 每个任务各有自己的 40 分钟预算。
poll() {
  local kind=$1 id=$2 delay=5 task_status deadline
  deadline=$(($(date +%s) + 2400))
  while :; do
    if (($(date +%s) >= deadline)); then
      echo "gave up waiting for $kind $id" >&2
      return 1
    fi
    task_status=$(api GET "$BASE/$kind/$id" | jq -r '.status')
    echo "$kind: $task_status"
    case "$task_status" in
    SUCCEEDED) return 0 ;;
    FAILED | CANCELED) return 1 ;;
    esac
    sleep "$delay"
    delay=$((delay * 2 > 30 ? 30 : delay * 2))
  done
}

# 把请求体写进文件。base64 data URI 绝对不能出现在命令行或导出的环境变量里 ——
# 任何真实尺寸的照片都会超过操作系统的参数长度上限。
BODY=$(mktemp)
trap 'rm -f "$BODY"' EXIT
if [[ -n "${IMAGE_PATH:-}" ]]; then
  # 声明真实类型：接口支持 JPEG、PNG、WebP。
  case "$(printf '%s' "${IMAGE_PATH##*.}" | tr 'A-Z' 'a-z')" in
    png) MIME=image/png ;;
    webp) MIME=image/webp ;;
    *) MIME=image/jpeg ;;
  esac
  {
    printf '{"image_url":"data:%s;base64,' "$MIME"
    base64 <"$IMAGE_PATH" | tr -d '\n'
    printf '"}'
  } >"$BODY"
else
  printf '{"image_url":"%s"}' "$IMAGE_URL" >"$BODY"
fi

# 1. 创建 prototype 任务
PROTO_ID=$(api POST "$BASE/prototype" \
  -H 'Content-Type: application/json' --data-binary @"$BODY" | jq -r '.result')

# 2. 等待设计效果图
poll prototype "$PROTO_ID"

# 3. 选一个候选（这里取第一个；生产环境应把 image_urls 展示给用户选）
CANDIDATE_ID=$(api GET "$BASE/prototype/$PROTO_ID" | jq -r '.candidate_ids[0]')

# 4. 创建 build 任务
jq -n --arg p "$PROTO_ID" --arg c "$CANDIDATE_ID" \
  '{input_task_id: $p, candidate_id: $c}' >"$BODY"
BUILD_ID=$(api POST "$BASE/build" \
  -H 'Content-Type: application/json' --data-binary @"$BODY" | jq -r '.result')

# 5. 等待模型（build 通常需要 3-7 分钟）
poll build "$BUILD_ID"

# 6. 下载产物。这些是签名链接：不需要 Authorization 头，
#    任务完成后 3 天内有效。
TASK=$(api GET "$BASE/build/$BUILD_ID")
curl --silent --show-error --fail --max-time 900 \
  -o keycap.glb "$(jq -r '.model_urls.glb' <<<"$TASK")"
curl --silent --show-error --fail --max-time 900 \
  -o keycap-obj.zip "$(jq -r '.model_urls.obj_zip' <<<"$TASK")"
echo "Done: keycap.glb + keycap-obj.zip"