As the path of each *path operation* has to start with `/`, like in:

```Python hl_lines="1"
@router.get("/{item_id}")
async def read_item(item_id: str):
    ...
```

...the prefix must not include a final `/`.

So, the prefix in this case is `/items`.

We can also add a list of `tags` and extra `responses` that will be applied to all the *path operations* included in this router.

      Short[] prefix = {(short) 86, (short) 99};
      Short[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class ShortsAsListMiddleSubListGenerator extends TestShortListGenerator {
    @Override
    protected List<Short> create(Short[] elements) {
      Short[] prefix = {Short.MIN_VALUE, Short.MAX_VALUE};

    protected List<Long> create(Long[] elements) {
      Long[] prefix = {86L, 99L};
      Long[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class LongsAsListMiddleSubListGenerator extends TestLongListGenerator {
    @Override
    protected List<Long> create(Long[] elements) {
      Long[] prefix = {Long.MIN_VALUE, Long.MAX_VALUE};

        <Status>Enabled</Status>
        <ExcludedPrefixes>
          <Prefix>*/_temporary</Prefix>
        </ExcludedPrefixes>
        <ExcludedPrefixes>
          <Prefix>*/__magic</Prefix>
        </ExcludedPrefixes>
        <ExcludedPrefixes>
          <Prefix>*/_staging</Prefix>
        </ExcludedPrefixes>

        <!-- .. up to 10 prefixes in all -->
</VersioningConfiguration>
```

            Other values define only the prefix of classes/resources being exposed. Their binary name must be equal to the prefix or starting with the prefix (followed by "." or "$").

		return ErrAdminConfigIDPCfgNameDoesNotExist
	}
	return ErrNone
}

// AddIdentityProviderCfg: adds a new IDP config for openid/ldap.
//
// PUT <admin-prefix>/idp-cfg/openid/dex1 -> create named config `dex1`
//
// PUT <admin-prefix>/idp-cfg/openid/_ -> create (default) named config `_`
func (a adminAPIHandlers) AddIdentityProviderCfg(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	for i := range decomBuckets {
		bucket, prefix := path2BucketObject(p.Pools[idx].Decommission.QueuedBuckets[i])
		decomBuckets[i] = decomBucketInfo{
			Name:   bucket,
			Prefix: prefix,
		}
	}

	return decomBuckets
}

//msgp:ignore decomBucketInfo
type decomBucketInfo struct {
	Name   string
	Prefix string
}

func (db decomBucketInfo) String() string {

func (s StubKMS) ListKeys(ctx context.Context, req *ListRequest) ([]madmin.KMSKeyInfo, string, error) {
	matches := []madmin.KMSKeyInfo{}
	if req.Prefix == "" {
		req.Prefix = "*"
	}
	for _, keyName := range s.KeyNames {
		if wildcard.MatchAsPatternPrefix(req.Prefix, keyName) {
			matches = append(matches, madmin.KMSKeyInfo{Name: keyName, CreatedAt: StubCreatedAt, CreatedBy: StubCreatedBy})
		}
	}

	return matches, "", nil

			if contextCanceled(ctx) {
				return ctx.Err()
			}
			if opts.Limit > 0 && objsReturned >= opts.Limit {
				return nil
			}
			if len(prefix) > 0 && !strings.HasPrefix(entry, prefix) {
				// Do not retain the file, since it doesn't
				// match the prefix.
				entries[i] = ""
				continue
			}
			if len(forward) > 0 && entry < forward {
				// Do not retain the file, since its

Dies dauert Mikrosekunden und geschieht nur beim Start.

Es hat also keinen Einfluss auf die Leistung. ⚡

///

### Einen `APIRouter` mit benutzerdefinierten `prefix`, `tags`, `responses` und `dependencies` einfügen { #include-an-apirouter-with-a-custom-prefix-tags-responses-and-dependencies }

Stellen wir uns nun vor, dass Ihre Organisation Ihnen die Datei `app/internal/admin.py` gegeben hat.