SimpleExternalRabbitMQ

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	This method returns the error values.

Example:

getErrors()

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.

caution

The maximum message length is 26000 characters.

Parameter(s):

Name	Type	Mandatory	Default value
routingKey	String	Y	N
payload	String	Y	N
options	Object	N	N

Set of fields for options parameter

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

Return:

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

Example:

publishMessage()

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.

caution

The maximum message length is 26000 characters.

Parameter(s):

Name	Type	Mandatory	Default value
routingKey	String	Y	N
payloads	Array of Strings	Y	N
options	Object	N	N

Set of fields for options parameter

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

Return:

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

Example:

publishMultipleMessages()

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());