# Simple OAuth2 with Password and Bearer { #simple-oauth2-with-password-and-bearer }

Now let's build from the previous chapter and add the missing parts to have a complete security flow.

## Get the `username` and `password` { #get-the-username-and-password }

We are going to use **FastAPI** security utilities to get the `username` and `password`.

		// Failed to upload object part, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	// Complete multipart.
	parts := []CompletePart{
		{ETag: etag1, PartNumber: 1},
		{ETag: etag2, PartNumber: 2},
	}
	_, err = obj.CompleteMultipartUpload(context.Background(), bucket, object, uploadID, parts, ObjectOptions{})
	if err != nil {
		// Failed to complete multipart upload, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())

FastAPI stands on the shoulders of giants:

* <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> for the web parts.
* <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> for the data parts.

## Installation { #installation }

        if (hostname != null && hostname.contains(".")) {
            // Extract potential cluster name from hostname
            String[] parts = hostname.split("\\.");
            if (parts.length > 1) {
                return parts[0]; // Use first part as cluster name
            }
        }
        return null;
    }

    /**
     * Register for witness notifications for a share

		TransitionStatus: "",
		DataDir:          "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
		XLV1:             false,
		ModTime:          time.Now(),
		Size:             0,
		Mode:             0,
		Metadata:         nil,
		Parts:            nil,
		Erasure: ErasureInfo{
			Algorithm:    ReedSolomon.String(),
			DataBlocks:   4,
			ParityBlocks: 2,
			BlockSize:    10000,
			Index:        1,
			Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},

- [Understand the KES server concepts](https://github.com/minio/kes/wiki/Concepts)

## Auto Encryption

Auto-Encryption is useful when MinIO administrator wants to ensure that all data stored on MinIO is encrypted at rest.

### Using `mc encrypt` (recommended)

    }

    when {
      secondSpace != -1 && firstSpace == CLEAN.length && line.startsWith(CLEAN) -> {
        val parts =
          line
            .substring(secondSpace + 1)
            .split(' ')
        entry.readable = true
        entry.currentEditor = null
        entry.setLengths(parts)
      }

      secondSpace == -1 && firstSpace == DIRTY.length && line.startsWith(DIRTY) -> {

...and have the code for the tests just like before.

## Testing: extended example { #testing-extended-example }

Now let's extend this example and add more details to see how to test different parts.

### Extended **FastAPI** app file { #extended-fastapi-app-file }

Let's continue with the same file structure as before:

```
.
├── app
│   ├── __init__.py
│   ├── main.py

    val type: MediaType = multipartBody.type
    val boundary: String = multipartBody.boundary
    val size: Int = multipartBody.size
    val parts: List<MultipartBody.Part> = multipartBody.parts
    val part: MultipartBody.Part = multipartBody.part(0)
    val contentType: MediaType = multipartBody.contentType()
    val contentLength: Long = multipartBody.contentLength()

	if objInfo.ModTime.IsZero() || objInfo.ModTime.Equal(time.Unix(0, 0)) {
		return false
	}

	// Check if the part number is correct.
	if opts.PartNumber > 1 {
		partFound := false
		for _, pi := range objInfo.Parts {
			if pi.Number == opts.PartNumber {
				partFound = true
				break
			}
		}
		if !partFound {
			// According to S3 we don't need to set any object information here.