555-connection

555 JavaScript SDK for connection

555-connection provides simple APIs to make connection with 555 Platform.

Getting started

npm i @555platform/555-connection

Usage - Examples

import SDK from '@555platform/555-connection';

1. Make connection using 555token, ConnectOptions and MessageAdapter

   const sdk = SDK.Client.create(
               userData.access_token,
               {
             url: '',
             automaticReconnect: true
               },
               new SDK.QueuedMessageAdapter<SDK.MessagePayload>()
           );
       
       
   sdk.connect();
   

2. Callbacks

   sdk.onTokenAboutToExpire(() =>
    // renewToken is a function you need to implement to fetch new token
    // from application server
    renewToken(renewedToken => sdk.updateToken(renewedToken));
   );
   ```	
   
   

APIs

Connect

Methods

<static> create(accessToken, ConnectOptions, messageAdapter)

Factory method to create and initialize Client

Parameters

Name	Type	Argument	Description
accessToken	string	required	555 Platform access token
options	ConnectOptions	required	Options to customize 555 Connection behavior
messageAdapter	MessageAdapter	required	Message adapter class conforming to MessageAdapter interface

Returns

Type

Client|Error

updateToken(accessToken)

Updates current token. Used to update Client with refreshed token.

Parameters

Name	Type	Argument	Description
accessToken	string	required	555 Platform access token

Returns

Type

void

connect()

Connect to platform.

Parameters

Name	Type	Argument	Description
options	ConnectOptions	optional	Connection options

Returns

Type

Promise.<Client|void>

disconnect()

Manually disconnect the client.

Returns

Type

Promise.<void|Error>

AccessTokenAboutToExpire

Triggered 5 minutes before access token is to expire.

client.onTokenAboutToExpire(() =>
  // renewToken is a function you need to implement to fetch new token
  // from application server
  renewToken(renewedToken => sdk.updateToken(renewedToken));
);

Options

ConnectOptions

These options are parameters for connecting to platform.

Type

Object

Properties

Name	Type	Argument
url	string	required
protocol	string[]	optional
automaticReconnect	boolean	optional
reconnectionAttempts	number	optional
reconnectDelay	number	optional
reconnectBackoffAlgorithm	BackoffAlgorithm	optional
pollInterval	number	optional
requestTimeout	number	optional
requestRetries	number	optional
paginatorDefaultPageSize	number	optional
nextPingDelay	number	optional
pingWaitDelay	number	optional