Configuration API for PubNub Android SDK

Android V4 complete API reference for building real-time applications on PubNub, including basic usage and sample code.

Configuration

Description

PNConfiguration instance is storage for user-provided information which describe further PubNub client behavior. Configuration instance contain additional set of properties which allow to perform precise PubNub client configuration.

Method(s)

To create configuration instance you can use the following function in the Android V4 SDK:

new PNConfiguration();

Properties	Type	Required	Default	Description
`setSubscribeKey`	String	Yes		`subscribeKey` from the Admin Portal.
`setPublishKey`	String	Optional		`publishKey` from the Admin Portal (only required if publishing).
`setSecretKey`	String	Optional		`secretKey` (only required for access operations, keep away from Android).
`setCipherKey`	String	Optional		If `cipher` is passed, all communications to and from PubNub will be encrypted.
`setUuid`	String	Yes		`UUID` to use. You should set a unique `UUID` to identify the user or the device that connects to PubNub. If you don't set the `UUID`, you won't be able to connect to PubNub.
`setLogVerbosity`	PNLogVerbosity	Optional	`PNLogVerbosity.NONE`	Set `PNLogVerbosity.BODY` to enable debugging. To disable debugging use the option `PNLogVerbosity.NONE`
`setAuthKey`	String	Optional	`Not set`	If Access Manager is utilized, client will use this `authKey` in all restricted requests.
`setCacheBusting`	Boolean	Optional		If operating behind a misbehaving proxy, allow the client to shuffle the subdomains.
`setSecure`	Boolean	Optional	`true`	When `true` `TLS` is enabled. `TLS` is enabled by default as of Android P; check this link if you want to use `false` in this setting (Not Recommended).
`setConnectTimeout`	Int	Optional	`5`	How long before the client gives up trying to connect with a subscribe call. The value is in seconds.
`setSubscribeTimeout`	Int	Optional	`310`	The subscribe request timeout. The value is in seconds.
`setNonSubscribeRequestTimeout`	Int	Optional	`10`	For `non subscribe` operations (publish, herenow, etc), how long to wait to connect to PubNub before giving up with a connection timeout error. The value is in seconds.
`setFilterExpression`	String	Optional	`Not set`	Feature to subscribe with a custom filter expression.
`setHeartbeatNotificationOptions`	PNHeartbeatNotificationOptions	Optional	`PNHeartbeatNotificationOptions.FAILURES`	`Heartbeat` notification options. By default, the SDK alerts on failed heartbeats (equivalent to `PNHeartbeatNotificationOptions.FAILURES`). Other options including all heartbeats (`PNHeartbeatNotificationOptions.ALL`) and no heartbeats (`PNHeartbeatNotificationOptions.NONE`) are supported.
`setOrigin`	String	Optional		Custom `origin` if needed.
`setReconnectionPolicy`	PNReconnectionPolicy	Optional	`PNReconnectionPolicy.NONE`	Set to `PNReconnectionPolicy.LINEAR` for automatic reconnects. Use `PNReconnectionPolicy.NONE` to disable automatic reconnects. Use `PNReconnectionPolicy.EXPONENTIAL` to set exponential retry interval.
`setPresenceTimeout`	Int	Optional	`300`	Sets the custom presence server timeout. The value is in seconds, and the minimum value is `20` seconds.
`setPresenceTimeoutWithCustomInterval`	Int, Int	Optional	`300`, `0`	Parameters are presence timeout (same as setPresenceTimeout) and custom heartbeat interval at which to ping the server.
`setProxy`	Proxy	Optional		Instruct the SDK to use a `proxy` configuration when communicating with PubNub servers. For more details see this https://docs.oracle.com/javase/7/docs/api/java/net/Proxy.html
`setMaximumReconnectionRetries`	Int	Optional	`-1`	The config sets how many times to retry to reconnect before giving up.
`setProxySelector`	ProxySelector	Optional		Sets Java ProxySelector. For more details refer to https://docs.oracle.com/javase/7/docs/api/java/net/ProxySelector.html
`setProxyAuthenticator`	Authenticator	Optional		Sets Java Authenticator. For more details, refer to https://docs.oracle.com/javase/7/docs/api/java/net/Authenticator.html
`setGoogleAppEngineNetworking`	Boolean	Optional		Enable Google App Engine networking.
`setSuppressLeaveEvents`	Boolean	Optional	`false`	When `true` the SDK doesn't send out the `leave` requests.
`requestMessageCountThreshold`	Int	Optional	100	`PNRequestMessageCountExceededCategory` is thrown when the number of messages into the payload is above `requestMessageCountThreshold`.
`setDisableTokenManager`	`Boolean`	Optional	`false`	Disables the TMS (Token Manager System) in a way that it won't authorize requests even if there are applicable tokens.
`useRandomInitializationVector`	Boolean	Optional	`true`	When `true` the initialization vector (IV) is random for all requests (not just for file upload). When `false` the IV is hard-coded for all requests except for file upload.

Disabling random initialization vector

Disable random initialization vector (IV) only for backward compatibility (<5.0.0) with existing applications. Never disable random IV on new applications.

Basic Usage

Note

Always set the UUID to uniquely identify the user or device that connects to PubNub. This UUID should be persisted, and should remain unchanged for the lifetime of the user or the device. If you don't set the UUID, you won't be able to connect to PubNub.

PNConfiguration pnConfiguration = new PNConfiguration();
// subscribeKey from Admin Portal
pnConfiguration.setSubscribeKey("SubscribeKey"); // required
// publishKey from Admin Portal (only required if publishing)
pnConfiguration.setPublishKey("PublishKey");
// secretKey (only required for access operations, keep away from Android)
pnConfiguration.setSecretKey("SecretKey");
// if cipherKey is passed, all communicatons to/from pubnub will be encrypted
pnConfiguration.setCipherKey("cipherKey");
// UUID to be used as a device identifier
pnConfiguration.setUuid("myUniqueUUID");
// Enable Debugging
pnConfiguration.setLogVerbosity(PNLogVerbosity.BODY);
// if Access Manager is utilized, client will use this authKey in all restricted
// requests
pnConfiguration.setAuthKey("authKey");
// use SSL.
pnConfiguration.setSecure(true);
// PSV2 feature to subscribe with a custom filter expression
pnConfiguration.setFilterExpression("such=wow");
// heartbeat notifications, by default, the SDK will alert on failed heartbeats.
// other options such as all heartbeats or no heartbeats are supported.
pnConfiguration.setHeartbeatNotificationOptions(PNHeartbeatNotificationOptions.All);
pnConfiguration.setPresenceTimeout(120);
// the number of messages into the payload
pnConfiguration.setRequestMessageCountThreshold(100);

Initialization

Add PubNub to your project using one of the procedures defined under How to Get It

Note

Put these permission outside the <application> tag, preferable before the tag in the AndroidManifest.xml.

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

Description

This function is used for initializing the PubNub Client API context. This function must be called before attempting to utilize any API functionality in order to establish account level credentials such as publishKey and subscribeKey.

Method(s)

To Initialize PubNub you can use the following method(s) in the Android V4 SDK:

new PubNub(pnConfiguration);

Parameter	Type	Required	Description
`pnConfiguration`	PNConfiguration	Yes	Goto Configuration for more details.

Basic Usage

Initialize the PubNub client API:

Note

PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("my_subkey");
pnConfiguration.setPublishKey("my_pubkey");
pnConfiguration.setSecure(true);
pnConfiguration.setUuid("myUniqueUUID");
PubNub pubnub = new PubNub(pnConfiguration);

Returns

It returns the PubNub instance for invoking PubNub APIs like publish(), subscribe(), history(), hereNow(), etc.

Other Examples

Initialize a non-secure client:

Note

Always set the UUID to uniquely identify the user or device that connects to PubNub. This UUID should be persisted, and should remain unchanged for the lifetime of the user or the device. If you don't set the UUID, you won't be able to connect to PubNub.
```
PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("SubscribeKey");
pnConfiguration.setPublishKey("PublishKey");
pnConfiguration.setSecure(false);
pnConfiguration.setUuid("myUniqueUUID");
PubNub pubnub = new PubNub(pnConfiguration);
```
Initialization for a Read-Only client:

In the case where a client will only read messages and never publish to a channel, you can simply omit the publishKey when initializing the client:

Note

Always set the UUID to uniquely identify the user or device that connects to PubNub. This UUID should be persisted, and should remain unchanged for the lifetime of the user or the device. If you don't set the UUID, you won't be able to connect to PubNub.
```
PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("my_subkey");
PubNub pubnub = new PubNub(pnConfiguration);
```
Use a custom UUID

Set a custom UUID to identify your users.

Note

Always set the UUID to uniquely identify the user or device that connects to PubNub. This UUID should be persisted, and should remain unchanged for the lifetime of the user or the device. If you don't set the UUID, you won't be able to connect to PubNub.
```
PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("mySubscribeKey");
pnConfiguration.setPublishKey("myPublishKey");
pnConfiguration.setUuid("myUniqueUUID");
PubNub pubnub = new PubNub(pnConfiguration);
```
Initializing with SSL Enabled:

This examples demonstrates how to enable PubNub Transport Layer Encryption with SSL. Just initialize the client with setSecure set to true. The hard work is done, now the PubNub API takes care of the rest. Just subscribe and publish as usual and you are good to go.

Note

Always set the UUID to uniquely identify the user or device that connects to PubNub. This UUID should be persisted, and should remain unchanged for the lifetime of the user or the device. If you don't set the UUID, you won't be able to connect to PubNub.
```
PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("my_subkey");
pnConfiguration.setPublishKey("my_pubkey");
pnConfiguration.setSecure(true);
pnConfiguration.setUuid("myUniqueUUID");
PubNub pubnub = new PubNub(pnConfiguration);
```
Initializing with Access Manager: Requires Access Manager add-onRequires that the Access Manager add-on is enabled for your key. See this page on enabling add-on features on your keys:
https://support.pubnub.com/hc/en-us/articles/360051974791-How-do-I-enable-add-on-features-for-my-keys-

Note

Anyone with the secretKey can grant and revoke permissions to your app. Never let your secretKey be discovered, and to only exchange it / deliver it securely. Only use the secretKey on secure server-side platforms.

When you init with secretKey, you get root permissions for the Access Manager. With this feature you don't have to grant access to your servers to access channel data. The servers get all access on all channels.

For applications that will administer Access Manager permissions, the API is initialized with the secretKey as in the following example:

Note

Always set the UUID to uniquely identify the user or device that connects to PubNub. This UUID should be persisted, and should remain unchanged for the lifetime of the user or the device. If you don't set the UUID, you won't be able to connect to PubNub.
```
PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("my_subkey");
pnConfiguration.setPublishKey("my_pubkey");
pnConfiguration.setSecretKey("my_secretkey");
pnConfiguration.setUuid("myUniqueUUID");
pnConfiguration.setSecure(true);

PubNub pubnub = new PubNub(pnConfiguration);
```
Now that the pubnub object is instantiated the client will be able to access the Access Manager functions. The pubnub object will use the secretKey to sign all Access Manager messages to the PubNub Network.

How to Set Proxy:

Note

PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setSubscribeKey("mySubscribeKey");
pnConfiguration.setPublishKey("myPublishKey");
pnConfiguration.setSecretKey("mySecretKey");
pnConfiguration.setUuid("myUniqueUUID");
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("http://mydomain.com", 8080));
pnConfiguration.setProxy(proxy);
PubNub pubNub = new PubNub(pnConfiguration);

UUID

Description

These functions are used to set/get a user ID on the fly.

Method(s)

To set/get UUID you can use the following method(s) in Android V4 SDK:

```
pnConfiguration.setUuid(String);
```
Parameter Type Required Default Description

uuid String Yes UUID to be used as a device identifier. If you don't set the UUID, you won't be able to connect to PubNub.
```
pnConfiguration.getUuid();
```
This method doesn't take any arguments.

Parameter	Type	Required	Default	Description
`uuid`	String	Yes		`UUID` to be used as a device identifier. If you don't set the `UUID`, you won't be able to connect to PubNub.

Basic Usage

Set UUID:

Note

PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setUuid("myUniqueUUID");

Get UUID:

PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.getUuid();

Authentication Key

Description

Setter and getter for users auth key.

Method(s)

```
pnConfiguration.setAuthKey(String);
```
Parameter Type Required Description

Auth Key String Yes If Access Manager is utilized, client will use this authKey in all restricted requests.
```
pnConfiguration.getAuthKey();
```
This method doesn't take any arguments.

Parameter	Type	Required	Description
`Auth Key`	String	Yes	If Access Manager is utilized, client will use this `authKey` in all restricted requests.

Basic Usage

Set Auth Key

PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setAuthKey("authKey");

Get Auth Key

pnConfiguration.getAuthKey();

Returns

None.

Filter Expression

Requires Stream Controller add-on Requires that the Stream Controller add-on is enabled for your key. See this page on enabling add-on features on your keys:
https://support.pubnub.com/hc/en-us/articles/360051974791-How-do-I-enable-add-on-features-for-my-keys-

Description

Stream filtering allows a subscriber to apply a filter to only receive messages that satisfy the conditions of the filter. The message filter is set by the subscribing client(s) but it is applied on the server side thus preventing unwanted messages (those that do not meet the conditions of the filter) from reaching the subscriber.

To set/get filters you can use the following method. To learn more about filtering, refer to the Publish Messages documentation.

Method(s)

```
pnConfiguration.setFilterExpression(String);
```
Parameter Type Required Description

filterExpression String Yes PSV2 feature to subscribe with a custom filter expression
```
pnConfiguration.getFilterExpression();
```
This method doesn't take any arguments.

Parameter	Type	Required	Description
`filterExpression`	String	Yes	PSV2 feature to `subscribe` with a custom filter expression

Basic Usage

Set Filter Expression

Note

PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setFilterExpression("such=wow");

Get Filter Expression

pnConfiguration.getFilterExpression();