## **FastAPI** compatibility { #fastapi-compatibility }

The simplicity of the dependency injection system makes **FastAPI** compatible with:

* all the relational databases
* NoSQL databases
* external packages
* external APIs
* authentication and authorization systems
* API usage monitoring systems
* response data injection systems
* etc.

## Simple and Powerful { #simple-and-powerful }

The format is compatible with GCC's response file implementation to ensure interoperability with existing build systems.

### Go command {#go-command}

`go test` now invokes the stdversion vet check by default.
This reports the use of standard library symbols that are too new
for the Go version in force in the referring file,

  api(libs.conscrypt.openjdk)
  api(libs.openjsse)

  api(libs.junit.jupiter.engine)

  // This runs Corretto on macOS (aarch64) and Linux (x86_64). We don't test Corretto on other
  // operating systems or architectures.
  api(
    variantOf(libs.amazon.corretto) {
      classifier(
        when {
          OperatingSystem.current().isMacOsX -> "osx-aarch_64"
          OperatingSystem.current().isLinux -> "linux-x86_64"

        <include>mvnenc</include>
        <include>mvnsh</include>
        <include>mvnup</include>
        <include>mvnDebug</include>
        <include>mvnencDebug</include>
        <!-- This is so that CI systems can periodically run the profiler -->
        <include>mvnyjp</include>
      </includes>
      <lineEnding>unix</lineEnding>
      <fileMode>0755</fileMode>
    </fileSet>
    <fileSet>

## Types and Validation { #types-and-validation }

These environment variables can only handle **text strings**, as they are external to Python and have to be compatible with other programs and the rest of the system (and even with different operating systems, as Linux, Windows, macOS).

That means that **any value** read in Python from an environment variable **will be a `str`**, and any conversion to a different type or any validation has to be done in code.

## Other data types { #other-data-types }

Here are some of the additional data types you can use:

* `UUID`:
    * A standard "Universally Unique Identifier", common as an ID in many databases and systems.
    * In requests and responses will be represented as a `str`.
* `datetime.datetime`:
    * A Python `datetime.datetime`.

import java.io.OutputStream;
import java.util.List;
import java.util.Map;

/**
 * Interface for cloud storage operations.
 * Implementations provide access to S3-compatible storage, GCS, or other cloud storage systems.
 */
public interface StorageClient extends AutoCloseable {

    /**
     * Uploads an object to storage.
     *
     * @param objectName the name/path for the object

It can be used by the frontend team (that can also be yourself).

It can be used by third party applications and systems.

And it can also be used by yourself, to debug, check and test the same application.

## The `password` flow { #the-password-flow }

Now let's go back a bit and understand what is all that.

It's relatively tightly coupled with relational databases (like MySQL or PostgreSQL), so, having a NoSQL database (like Couchbase, MongoDB, Cassandra, etc) as the main store engine is not very easy.

   *       implementation will effectively put the whole file in memory. On many systems with paging
   *       and virtual memory, this is not a problem - because it is mapped read-only, the kernel
   *       can always page it to disk "for free". However, on systems where killing processes
   *       happens all the time in normal conditions (i.e., android) the OS must make a tradeoff