# FastAPI CLI { #fastapi-cli }

**FastAPI <abbr title="command line interface - 命令列介面">CLI</abbr>** 是一個命令列程式，你可以用它來啟動你的 FastAPI 應用程式、管理你的 FastAPI 專案，等等。

當你安裝 FastAPI（例如使用 `pip install "fastapi[standard]"`）時，會附帶一個可以在終端機執行的命令列程式。

要在開發時運行你的 FastAPI 應用程式，你可以使用 `fastapi dev` 指令：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev

The [mc sql](https://docs.min.io/community/minio-object-store/reference/minio-mc/mc-sql.html) command can be used for executing queries using the command line.

(*) Parquet is disabled on the MinIO server by default. See below how to enable it.

## Enabling Parquet Format

Parquet is DISABLED by default since hostile crafted input can easily crash the server.

 */
public abstract class StringUtil {

    /**
     * Do not instantiate.
     */
    protected StringUtil() {
    }

    /**
     * A system line separator.
     */
    public static final String RETURN_STRING = System.getProperty("line.separator");

    /**
     * An empty string <code>""</code>.
     */
    public static final String EMPTY = "";

    /**
     * An empty array of strings.

      </codeSegments>
    </class>
    <!-- /BuildProfile support -->
    <class locationTracker="locations">
      <name>InputLocation</name>
      <version>1.2.0+</version>
      <fields>
        <!-- line, column and source fields are auto-generated by Modello -->
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.2.0+</version>
          <code>

    @Override

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

/**
 * JUnit 5 tests for {@link TestLocking}.
 * Tests command line argument parsing and basic field initialization.
 * Does not require a real SMB server - focuses on application logic.
 */
@ExtendWith(MockitoExtension.class)
class TestLockingTest {

    private PrintStream originalOut;

            assertEquals(
                    "1 problem was encountered while building the effective toolchains" + LS
                            + "[FATAL] Non-parseable toolchains (memory): MESSAGE @ line 4, column 2" + LS,
                    e.getMessage());
        }
    }

    @Test
    void testIOException() throws Exception {
        Source src = mock(Source.class);

   * method.
   */
  public void callAndAssertWaits(String methodName, Object conditionLikeObject) throws Exception {
    checkNotNull(methodName);
    checkNotNull(conditionLikeObject);
    // TODO: Restore the following line when Monitor.hasWaiters() no longer acquires the lock.
    // assertEquals(false, invokeMethod("hasWaiters", conditionLikeObject));
    sendRequest(methodName, conditionLikeObject);
    Thread.sleep(DUE_DILIGENCE_MILLIS);

</div>

////

/// tip | İpucu

Bu environment'e **yeni bir package** kurduğunuz her seferinde environment'i yeniden **aktif edin**.

Böylece, o package'in kurduğu bir **terminal (<abbr title="command line interface - Komut Satırı Arayüzü">CLI</abbr>) programı** kullanıyorsanız, global olarak kurulu (ve muhtemelen ihtiyacınız olandan farklı bir versiyona sahip) başka bir program yerine, virtual environment'inizdeki programı kullanmış olursunuz.

Bunu yapmak için, program komutunun hemen öncesinde ve aynı satırda tanımlayın:

<div class="termy">

```console
// Create an env var MY_NAME in line for this program call
$ MY_NAME="Wade Wilson" python main.py

// Now it can read the environment variable

Hello Wade Wilson from Python

// The env var no longer exists afterwards
$ python main.py

# FastAPI CLI { #fastapi-cli }

**FastAPI <abbr title="command line interface - 命令行接口">CLI</abbr>** 是一个命令行程序，你可以用它来部署和运行你的 FastAPI 应用、管理 FastAPI 项目，等等。

当你安装 FastAPI（例如使用 `pip install "fastapi[standard]"`）时，会附带一个可以在终端中运行的命令行程序。

要在开发环境中运行你的 FastAPI 应用，可以使用 `fastapi dev` 命令：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev