# `UploadFile` class

You can define *path operation function* parameters to be of the type `UploadFile` to receive files from the request.

You can import it directly from `fastapi`:

```python
from fastapi import UploadFile
```

::: fastapi.UploadFile
    options:
        members:
            - file
            - filename
            - size
            - headers
            - content_type
            - read

* Processing data:
    * For example, let's say you receive a file that must go through a slow process, you can return a response of "Accepted" (HTTP 202) and process the file in the background.

## Using `BackgroundTasks` { #using-backgroundtasks }

public enum RdmaCapability {
    /**
     * Remote direct read operations
     */
    RDMA_READ,

    /**
     * Remote direct write operations
     */
    RDMA_WRITE,

    /**
     * Traditional send/receive with RDMA
     */
    RDMA_SEND_RECEIVE,

    /**
     * Dynamic memory registration
     */
    MEMORY_REGISTRATION,

    /**
     * Fast memory region registration
     */
    FAST_REGISTRATION

     * Constructs a new MsrpcQueryInformationPolicy request.
     *
     * @param policyHandle the policy handle obtained from LsarOpenPolicy
     * @param level the information level to query
     * @param info the NdrObject to receive the policy information
     */
    public MsrpcQueryInformationPolicy(final LsaPolicyHandle policyHandle, final short level, final NdrObject info) {
        super(policyHandle, level, info);
        this.ptype = 0;

            }
        } catch (IOException e) {
            state = RdmaConnectionState.ERROR;
            throw new IOException("TCP RDMA send failed", e);
        }
    }

    @Override
    public ByteBuffer receive(int timeout) throws IOException {
        if (state != RdmaConnectionState.ESTABLISHED && state != RdmaConnectionState.CONNECTED) {
            throw new IOException("Connection not established");
        }

        try {

     */
    protected abstract void doSendFragment(byte[] buf, int off, int length, boolean isDirect) throws IOException;

    /**
     * Receives a DCERPC fragment from the remote endpoint
     * @param buf the buffer to receive the fragment
     * @param isDirect whether to use direct reception
     * @throws IOException if an I/O error occurs
     */

There you can select "Releases only".

By doing it, you will receive notifications (in your email) whenever there's a new release (a new version) of **FastAPI** with bug fixes and new features.

## Connect with the author { #connect-with-the-author }

import okhttp3.mockwebserver.MockWebServer;
import okhttp3.mockwebserver.RecordedRequest;
import okio.ByteString;

/**
 * Runs a MockWebServer on localhost and uses it as the backend to receive an OAuth session.
 *
 * <p>Clients should call {@link #start}, {@link #newAuthorizeUrl} and {@link #close} in that order.
 * Clients may request multiple sessions.
 */

        if (pipe.pipeIn != null) {
            final TransactNamedPipeInputStream in = (TransactNamedPipeInputStream) pipe.pipeIn;
            synchronized (in.lock) {
                in.receive(buffer, bufferIndex, len);
                in.lock.notify();
            }
        }
        return len;
    }

    @Override
    public String toString() {

    private final byte[] outputBuffer;

    /**
     * Constructs a response for a named pipe transaction.
     *
     * @param config the configuration to use
     * @param inB the input buffer to receive response data
     */
    public TransTransactNamedPipeResponse(final Configuration config, final byte[] inB) {
        super(config);
        this.outputBuffer = inB;
    }

    @Override