> For the complete documentation index, see [llms.txt](https://docs.m-xr.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.m-xr.com/marso-studio-api/getting-started/mesh.md).

# Mesh

**Upload one mesh**

Use `POST /uploads` to get a presigned URL. Upload the bytes to that URL, then poll `GET /uploads/{asset_id}` until the status is `ready`.

{% tabs %}
{% tab title="cURL" %}

```bash
file="model.glb"
size=$(wc -c < "$file")
upload=$(curl -sS "$MARSO_API_BASE_URL/uploads" \
  -H "Authorization: Bearer $MARSO_API_KEY" \
  -H "Content-Type: application/json" \
  -d "{\"filename\":\"$file\",\"size_bytes\":$size}")
upload_args=()
while IFS= read -r header; do upload_args+=(--header "$header"); done < <(
  echo "$upload" | jq -r '.headers | to_entries[] | "\(.key): \(.value)"'
)
curl -sS "$(echo "$upload" | jq -r .upload_url)" "${upload_args[@]}" --upload-file "$file"
asset_id=$(echo "$upload" | jq -r .asset_id)
while :; do
  status=$(curl -sS "$MARSO_API_BASE_URL/uploads/$asset_id" \
    -H "Authorization: Bearer $MARSO_API_KEY")
  state=$(echo "$status" | jq -r .status)
  [[ "$state" != "pending" ]] && break
  sleep 2
done
echo "$status"
```

{% endtab %}

{% tab title="Python" %}

```python
import os
from pathlib import Path
import time
import requests

base = os.environ["MARSO_API_BASE_URL"]
headers = {"Authorization": f"Bearer {os.environ['MARSO_API_KEY']}"}
path = Path("model.glb")
data = path.read_bytes()
upload = requests.post(
    f"{base}/uploads", headers=headers,
    json={"filename": path.name, "size_bytes": len(data)}, timeout=30
).json()
requests.put(upload["upload_url"], headers=upload["headers"], data=data, timeout=300).raise_for_status()
while True:
    status = requests.get(f"{base}/uploads/{upload['asset_id']}", headers=headers, timeout=30).json()
    if status["status"] == "ready":
        break
    if status["status"] == "rejected":
        raise RuntimeError("mesh validation failed")
    time.sleep(2)
```

{% endtab %}

{% tab title="Go" %}

```go
base := os.Getenv("MARSO_API_BASE_URL")
key := os.Getenv("MARSO_API_KEY")
body := strings.NewReader(`{"filename":"model.glb","size_bytes":12345}`)
req, _ := http.NewRequest(http.MethodPost, base+"/uploads", body)
req.Header.Set("Authorization", "Bearer "+key)
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil { log.Fatal(err) }
defer resp.Body.Close()
```

{% endtab %}
{% endtabs %}

**Download and unzip the USDZ mesh result**

Submit the ready asset to `POST /pbr/execute/mesh`. Poll the execution until it reaches a terminal status, then download `usdz.download_url`.

{% tabs %}
{% tab title="cURL" %}

```bash
execution=$(curl -sS "$MARSO_API_BASE_URL/pbr/execute/mesh" \
  -H "Authorization: Bearer $MARSO_API_KEY" -H "Content-Type: application/json" \
  -d '{"asset_id":"<ready-asset-id>"}')
execution_id=$(echo "$execution" | jq -r .execution_id)
while :; do
  result=$(curl -sS "$MARSO_API_BASE_URL/pbr/executions/$execution_id" \
    -H "Authorization: Bearer $MARSO_API_KEY")
  status=$(echo "$result" | jq -r .status)
  [[ "$status" == "SUCCEEDED" || "$status" == "PARTIAL_SUCCEEDED" || "$status" == "FAILED" || "$status" == "CANCELED" ]] && break
  sleep 5
done
[[ "$status" == "FAILED" || "$status" == "CANCELED" ]] && exit 1
usdz_url=$(echo "$result" | jq -r '.usdz.download_url // empty')
[[ -z "$usdz_url" ]] && exit 1
curl -L "$usdz_url" -o material.usdz
unzip material.usdz -d material
```

{% endtab %}

{% tab title="Python" %}

```python
execution = requests.post(
    f"{base}/pbr/execute/mesh", headers=headers,
    json={"asset_id": "<ready-asset-id>"}, timeout=30
).json()
while True:
    result = requests.get(
        f"{base}/pbr/executions/{execution['execution_id']}", headers=headers, timeout=30
    ).json()
    if result["status"] in {"SUCCEEDED", "PARTIAL_SUCCEEDED", "FAILED", "CANCELED"}:
        break
    time.sleep(5)
if result["status"] in {"FAILED", "CANCELED"} or "usdz" not in result:
    raise RuntimeError(result["error"]["message"])
Path("material.usdz").write_bytes(requests.get(result["usdz"]["download_url"], timeout=300).content)
```

{% endtab %}

{% tab title="Go" %}

```go
// Poll GET /pbr/executions/{execution_id} until status is SUCCEEDED.
req, _ := http.NewRequest(http.MethodGet, base+"/pbr/executions/<execution-id>", nil)
req.Header.Set("Authorization", "Bearer "+key)
resp, err := http.DefaultClient.Do(req)
if err != nil { log.Fatal(err) }
defer resp.Body.Close()
var result struct { USDZ struct { DownloadURL string `json:"download_url"` } `json:"usdz"` }
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil { log.Fatal(err) }
download, err := http.Get(result.USDZ.DownloadURL)
if err != nil { log.Fatal(err) }
defer download.Body.Close()
file, _ := os.Create("material.usdz")
defer file.Close()
_, _ = io.Copy(file, download.Body)
```

{% endtab %}
{% endtabs %}

**Upload a batch**

Use `POST /batch/uploads` for 5 to 200 files. Upload each file to its returned URL, then poll `GET /batch/uploads/{upload_batch_id}`.

{% tabs %}
{% tab title="cURL" %}

```bash
batch=$(curl -sS "$MARSO_API_BASE_URL/batch/uploads" \
  -H "Authorization: Bearer $MARSO_API_KEY" -H "Content-Type: application/json" \
  -d '{"files":[{"filename":"one.glb","size_bytes":12345},{"filename":"two.glb","size_bytes":23456},{"filename":"three.glb","size_bytes":34567},{"filename":"four.glb","size_bytes":45678},{"filename":"five.glb","size_bytes":56789}]}')
for i in 0 1 2 3 4; do
  file=$(printf '%s\n' one.glb two.glb three.glb four.glb five.glb | sed -n "$((i + 1))p")
  url=$(echo "$batch" | jq -r ".files[$i].upload_url")
  upload_args=()
  while IFS= read -r header; do upload_args+=(--header "$header"); done < <(
    echo "$batch" | jq -r ".files[$i].headers | to_entries[] | \"\(.key): \(.value)\""
  )
  curl -sS "$url" "${upload_args[@]}" --upload-file "$file"
done
batch_id=$(echo "$batch" | jq -r .upload_batch_id)
while :; do
  status=$(curl -sS "$MARSO_API_BASE_URL/batch/uploads/$batch_id" \
    -H "Authorization: Bearer $MARSO_API_KEY")
  state=$(echo "$status" | jq -r .state)
  [[ "$state" != "UPLOADING" ]] && break
  sleep 2
done
echo "$status"
```

{% endtab %}

{% tab title="Python" %}

```python
files = [{"filename": name, "size_bytes": Path(name).stat().st_size} for name in ["one.glb", "two.glb", "three.glb", "four.glb", "five.glb"]]
batch = requests.post(f"{base}/batch/uploads", headers=headers, json={"files": files}, timeout=30).json()
for path, upload in zip([Path(file["filename"]) for file in files], batch["files"]):
    requests.put(upload["upload_url"], headers=upload["headers"], data=path.read_bytes(), timeout=300).raise_for_status()
while True:
    status = requests.get(f"{base}/batch/uploads/{batch['upload_batch_id']}", headers=headers, timeout=30).json()
    if status["state"] != "UPLOADING":
        break
    time.sleep(2)
print(status)
```

{% endtab %}

{% tab title="Go" %}

```go
payload := `{"files":[{"filename":"one.glb","size_bytes":12345},{"filename":"two.glb","size_bytes":23456},{"filename":"three.glb","size_bytes":34567},{"filename":"four.glb","size_bytes":45678},{"filename":"five.glb","size_bytes":56789}]}`
req, _ := http.NewRequest(http.MethodPost, base+"/batch/uploads", strings.NewReader(payload))
req.Header.Set("Authorization", "Bearer "+key)
req.Header.Set("Content-Type", "application/json")
```

{% endtab %}
{% endtabs %}


---

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```
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