You can also use <a href="https://github.com/encode/databases" class="external-link" target="_blank">`encode/databases`</a> with **FastAPI** to connect to databases using `async` and `await`.

It is compatible with:

* PostgreSQL
* MySQL
* SQLite

In this example, we'll use **SQLite**, because it uses a single file and Python has integrated support. So, you can copy this example and run it as is.

    public void test_encode() {
        assertNull(permissionHelper.encode(null));
        assertNull(permissionHelper.encode(""));
        assertNull(permissionHelper.encode(" "));
        assertNull(permissionHelper.encode("{user}"));
        assertNull(permissionHelper.encode("{role}"));
        assertNull(permissionHelper.encode("{group}"));
        assertNull(permissionHelper.encode("(allow)"));

    override suspend fun WriteContext.encode(value: NullValueSnapshot) {
    }

    override suspend fun ReadContext.decode(): NullValueSnapshot {
        return NullValueSnapshot.INSTANCE
    }
}


object IsolatedEnumValueSnapshotCodec : Codec<IsolatedEnumValueSnapshot> {
    override suspend fun WriteContext.encode(value: IsolatedEnumValueSnapshot) {
        write(value.value)
    }

        readLengthPrefixedShorts(this)
}


object IntArrayCodec : Codec<IntArray> {
    override suspend fun WriteContext.encode(value: IntArray) =
        writeLengthPrefixedInts(this, value)

    override suspend fun ReadContext.decode() =
        readLengthPrefixedInts(this)
}


object LongArrayCodec : Codec<LongArray> {
    override suspend fun WriteContext.encode(value: LongArray) =

// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package encodemeta

// This package contains APIs and helpers for encoding the meta-data
// "blob" for a single Go package, created when coverage
// instrumentation is turned on.

import (
	"bytes"
	"crypto/md5"
	"encoding/binary"
	"fmt"
	"hash"
	"internal/coverage"

		B int
	}
	var b bytes.Buffer
	NewEncoder(&b).Encode(Test{"one", 1})

	var result, result2 Test
	dec := NewDecoder(&b)
	err := dec.Decode(&result)
	if err != nil {
		t.Errorf("decode: unexpected error %v", err)
	}

	b.Reset()
	NewEncoder(&b).Encode(Test{"two", 2})
	err = dec.Decode(&result2)
	if err == nil {
		t.Errorf("decode: expected duplicate type error, got nil")

	b.Reset()
	err = enc.Encode(GobTest0{17, &ByteStruct{'X'}})
	if err != nil {
		t.Fatal("encode error:", err)
	}
	y := new(GobTest1)
	err = dec.Decode(y)
	if err != nil {
		t.Fatal("decode error:", err)
	}
	if y.G.s != "XYZ" {
		t.Fatalf("expected `XYZ` got %q", y.G.s)
	}
}

// Test that we can encode a value and decode into a pointer.

    }

    def "can encode and skip empty byte stream"() {
        when:
        def bytes = encode { Encoder encoder ->
            encoder.encodeChunked {}
            encoder.writeString("done")
        }

        then:
        decode(bytes) { Decoder decoder ->
            decoder.skipChunked()
            assert decoder.readString() == "done"
        }
    }

    def "can encode and decode byte stream"() {

      name = "BOOLEAN",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 1L,
      codec =
        object : BasicDerAdapter.Codec<Boolean> {
          override fun decode(reader: DerReader): Boolean = reader.readBoolean()

          override fun encode(
            writer: DerWriter,
            value: Boolean,
          ) = writer.writeBoolean(value)
        },
    )

  val INTEGER_AS_LONG =
    BasicDerAdapter(

		T:        &T2{"this is T2"},
	}
	b := new(bytes.Buffer)
	err := NewEncoder(b).Encode(t1)
	if err != nil {
		t.Error("encode:", err)
	}
	var _t1 T1
	err = NewDecoder(b).Decode(&_t1)
	if err != nil {
		t.Fatal("decode:", err)
	}
	if !reflect.DeepEqual(t1, &_t1) {
		t.Errorf("encode expected %v got %v", *t1, _t1)
	}
	// Be absolutely sure the received map is non-nil.