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This server-side API class provides methods to generate and send messages to an external queue based on RabbitMQ.

getErrors()

Use this method to return error messages if an error occurred while sending the messages.

Return:

Type	Description
Array of Strings	Error values.

Example:

const rabbitMq = new SimpleExternalRabbitMQ('nofication-service');

const payload = {
    userIDs: [2344, 7444],
    message: "Hello!"
}

ss.info(rabbitMq.publishMessage('push-notifications', JSON.stringify(payload), {ContentType: "application/json", Headers: {"X-Source": "simple"}}).getErrors());

publishMessage()

Use this method to send a message to a selected queue.

Maximum message length – 26000 characters.

Parameter(s):

Name

Type

Mandatory

Default value

routingKey

String

Y

N

payload

String

Y

N

options

Object

N

Field	Type	Value
Exchange	string	not set
Mandatory	boolean	false
Immediate	boolean	false
Headers	object	{}
ContentType	string	text/plain
ContentEncoding	string	not set
DeliveryMode	integer	1
Priority	integer	0
CorrelationId	string	not set
ReplyTo	string	not set
Expiration	string	not set
MessageId	string	not set
Timestamp	string	0001-01-01 00:00:00
UserId	string	not set
AppId	string	not set
Type	string	not set

Return:

Type	Description
SimpleExternalRabbitMQ	This method returns an instance on which it was called.

Example:

const rabbitMq = new SimpleExternalRabbitMQ('nofication-service');

const payload = {
    userIDs: [2344, 7444],
    message: "Hello!"
}

ss.info(rabbitMq.publishMessage('push-notifications', JSON.stringify(payload), {ContentType: "application/json", Headers: {"X-Source": "simple"}}).getErrors());

publishMultipleMessages()

Use this method to send an array of messages to a selected queue.

Maximum message length – 26000 characters.

Parameter(s):

Name

Type

Mandatory

Default value

routingKey

String

Y

N

payloads

Array of Strings

Y

N

options

Object

N

Field	Type
Exchange	string	not set
Mandatory	boolean	false
Immediate	boolean	false
Headers	object	{}
ContentType	string	text/plain
ContentEncoding	string	not set
DeliveryMode	integer	1
Priority	integer	0
CorrelationId	string	not set
ReplyTo	string	not set
Expiration	string	not set
MessageId	string	not set
Timestamp	string	0001-01-01 00:00:00
UserId	string	not set
AppId	string	not set
Type	string	not set

Return:

Type	Description
SimpleExternalRabbitMQ	This method returns an instance on which it was called.

Example:

const rabbitMq = new SimpleExternalRabbitMQ('notification-service');

const messages = [
    {
        userID: 2344,
        message: "Hello, Ivan"
    },
    {
        userID: 7444,
        message: "Hello, Petr"
    }
];

rabbitMq.publishMultipleMessages(
    'push-notifications',
    messages.map(m => JSON.stringify(m)),
    {
        ContentType: "application/json",
        Headers: {
            "X-Source": "simple"
        }
    }
)

ss.info(rabbitMq.getErrors());