## Introduction

To integrate with custom authentication methods using the [Identity Management Plugin](../iam/identity-management-plugin.md)), MinIO provides an STS API extension called `AssumeRoleWithCustomToken`.

After configuring the plugin, use the generated Role ARN with `AssumeRoleWithCustomToken` to get temporary credentials to access object storage.

## API Request

- Active-Active replication
- Multi destination replication

## How to use?

Ensure that versioning is enabled on the source and target buckets with `mc version` command. If object locking is required, the buckets should have been created with `mc mb --with-lock`

> For a comprehensive overview, please visit the [official Gradle project homepage](https://gradle.org).

---

### 🚀 **Getting Started**

 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *

/// warning

Before setting `convert_underscores` to `False`, bear in mind that some HTTP proxies and servers disallow the usage of headers with underscores.

///

## Duplicate headers { #duplicate-headers }

It is possible to receive duplicate headers. That means, the same header with multiple values.

You can define those cases using a list in the type declaration.

	} else if len(langs2) != 3 {
		t.Errorf("should only find only 3 languages, but got %+v", langs2)
	}

	DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&langs)
	var langs3 []Language
	if err := DB.Find(&langs3, "code LIKE ?", "upsert-slice%").Error; err != nil {
		t.Errorf("no error should happen when find languages with code, but got %v", err)

* <a href="https://strawberry.rocks/" class="external-link" target="_blank">Strawberry</a> 🍓
    * With <a href="https://strawberry.rocks/docs/integrations/fastapi" class="external-link" target="_blank">docs for FastAPI</a>
* <a href="https://ariadnegraphql.org/" class="external-link" target="_blank">Ariadne</a>

        uses: actions/checkout@v4
        with:
          repository: minio/minio-iam-testing
          path: minio-iam-testing
      - name: Test import of IAM artifacts when in fresh cluster there are missing groups etc
        run: |
          make test-iam-import-with-missing-entities
  iam-import-with-openid:
    name: Test IAM import in new cluster with opendid configurations
    runs-on: ubuntu-latest
    steps:

You can add custom exception handlers with <a href="https://www.starlette.dev/exceptions/" class="external-link" target="_blank">the same exception utilities from Starlette</a>.

Let's say you have a custom exception `UnicornException` that you (or a library you use) might `raise`.

And you want to handle this exception globally with FastAPI.

You could add a custom exception handler with `@app.exception_handler()`:

 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *