/// info

Added in FastAPI 0.134.0.

///

## What is a Stream? { #what-is-a-stream }

"**Streaming**" data means that your app will start sending data items to the client without waiting for the entire sequence of items to be ready.

So, it will send the first item, the client will receive and start processing it, and you might still be producing the next item.

```mermaid
sequenceDiagram
    participant App
    participant Client

     */
    public SuggestIndexResponse restoreElevateWord(final String index) {
        if (logger.isInfoEnabled()) {
            logger.info("Restoring elevate words: index={}", index);
        }
        final long start = System.currentTimeMillis();
        int numberOfSuggestDocs = 0;
        int numberOfInputDocs = 0;

        final ElevateWord[] elevateWords = settings.elevateWord().get();

if [ $? != 0 ]; then
  echo "Run 'brew install jq'"
  exit 1
fi

trap 'kill $(jobs -pr)' SIGINT SIGTERM EXIT

set -ex

wstest -m fuzzingserver -s fuzzingserver-config.json &
sleep 2 # wait for wstest to start

java -jar target/okhttp-tests-*-jar-with-dependencies.jar

jq '.[] as $in | $in | keys[] | . + " " + $in[.].behavior' target/fuzzingserver-report/index.json > target/fuzzingserver-actual.txt

    assertThat(thread.getUncaughtExceptionHandler())
        .isEqualTo(defaultThread.getUncaughtExceptionHandler());

    assertFalse(completed);
    thread.start();
    thread.join();
    assertTrue(completed);

    // Creating a new thread from the same ThreadFactory will have the same
    // pool ID but a thread ID of 2.

            KeyMap<Binding> keyMap = reader.getKeyMaps().get("main");
            keyMap.bind(new Reference("tailtip-toggle"), KeyMap.alt("s"));

            // start the shell and process input until the user quits with Ctrl-D
            AtomicReference<Exception> failure = new AtomicReference<>();
            while (true) {
                try {
                    failure.set(null);

            OutputStream progressStream = new ProgressOutputStream(vagrantSpec.command, progressHandler);
            execSpec.setStandardOutput(new TeeOutputStream(output, progressStream));
        });
    }

    // start the configuration VM if it hasn't been started yet
    void maybeStartVM() {
        if (isVMStarted) {
            return;
        }
        execute(spec -> {
            spec.setCommand("box");

    add-apt-repository \
      "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
      $(lsb_release -cs) \
      stable"

    # Install Docker. Unlike Fedora and CentOS, this also start the daemon.
    apt-get update
    apt-get install -y --force-yes docker-ce docker-ce-cli containerd.io

    # Add vagrant to the Docker group, so that it can run commands
    usermod -aG docker vagrant

    WaiterThread waiter = new WaiterThread(future);
    waiter.start();
    waiter.awaitWaiting();
    PollingThread poller = new PollingThread(future);
    poller.start();
    PollingThread poller2 = new PollingThread(future);
    poller2.start();
    PollingThread poller3 = new PollingThread(future);
    poller3.start();
    poller.awaitInLoop();
    poller2.awaitInLoop();
    poller3.awaitInLoop();

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.RebalanceAdminAction)
	if objectAPI == nil {
		return
	}

	// NB rebalance-start admin API is always coordinated from first pool's
	// first node. The following is required to serialize (the effects of)
	// concurrent rebalance-start commands.
	if ep := globalEndpoints[0].Endpoints[0]; !ep.IsLocal {
		for nodeIdx, proxyEp := range globalProxyEndpoints {

body:
  - type: markdown
    attributes:
      value: |
        Thanks for your interest in FastAPI! 🚀

        If you are not @tiangolo or he didn't ask you directly to create an issue here, please start the conversation in a [Question in GitHub Discussions](https://github.com/fastapi/fastapi/discussions/categories/questions) instead.
  - type: checkboxes
    id: privileged
    attributes:
      label: Privileged issue