Utility

A component that is designed for utility operations.

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Related pages:

Utility Technical Notes

Utility Usage Example

Environment variables

• [optional] EIO_REQUIRED_RAM_MB - Number of MB allocated to container. 1024 by default
• [optional] REQUEST_TIMEOUT - HTTP request timeout in milliseconds. 10000 by default
• [optional] REQUEST_RETRY_DELAY - Delay between retry attempts in milliseconds. 7000 by default
• [optional] REQUEST_MAX_RETRY - Number of HTTP request retry attempts. 7 by default
• [optional] REQUEST_MAX_CONTENT_LENGTH - Max size of HTTP request in bytes. 10485760 by default

Triggers

This component has no trigger functions. This means it will not be accessible to select as a first component during the integration flow design.

Actions

String To Attachment

Creates attachment from input value. Output is attachmentId and attachmentUrl in message.body and attachment object in message.attachments:

Configuration fields description

• encodeToBase64 - if checked encode an input value using Base64 encode. Than saves encoded value into attachment.

String From Attachment

Creates string from attachment with provided input attachmentId which must be either:

• A numeric ID of the attachment that can be referenced in the step immediately prior.
• A URL to an attachment produced by any component in the flow.

Configuration fields description

• decodeFromBase64 - if checked decode attachment content using Base64 decode before output. If content of attachment is malformed or not Base64 encoded string, result will be malformed.

Base64 Decode

Decodes input value using Base64 decoding to regular string. If malformed input provided or not Base64 encoded string, result will be malformed:

Base64 Encode

Encodes input value using Base64 encoding:

Convert Between Timezones

Given two timezones and an array of timestamps (without any timezone info) converts the timestamps to the output timezone. The output is a dictionary of oldTimezone -> newTimezone values:

E.g. If converting from UTC to German time then

{timesToConvert: ['2020-01-01T12:00:00', '2020-07-01T12:00:00']}

produces

{
  '2020-01-01T12:00:00': '2020-01-01T13:00:00+01:00',
  '2020-07-01T12:00:00': '2020-07-01T14:00:00+02:00',
}

This component takes into account that Germany is ahead of UTC 1 hour in Winter and 2 hours in the Summer. The possible format of incoming strings is deliberately broad to account for as large a range of possible timestamps. Epoch time conversion is not supported.

Delay

Introduce a delay before passing the message to the next step.

Config Fields

There are two options for delay behavior:

• Delay Each: In this option, every incoming message will be independently delayed from one another. For example, if we have 100 messages arriving simultaneously with a delay of 1 second, after 1 second, all messages will proceed to the next step together.

• Delay All: In this option, each incoming message will be delayed one by one. A new message will only proceed to the next step once the previous message has completed. For instance, if we have 100 messages arriving simultaneously with a delay of 1 second, each message will advance to the next step at the rate of one message per second, starting from the oldest message.

Input Metadata

• Delay Time (in seconds) - Amount of time this component should wait/delay (in seconds) before emiting the message. Negative number will be converted to positive, strings converted to number, if converted failed will set to zero.
• Data to transfer - Use this field to transfer data in to another steps

Log Message

Log the message (and potentially passthrough) into the provided logger at the selected level.

Config Fields

• Log Level - dropdown, the log level at which to store the message, default: Info. To see message in logs, level in config must be higher or equal component Log Level. When you do “Retrieve new sample” log Level set to platform default value - Info.
• Log All Passthrough - dropdown, Log only the message body or log all passthrough data, default: message body
• Log without formatting - checkbox. If checked, the message in logs will be not formatted, for example:
  • Formatted message (default):

        {
          "key1": "value1",
          "key2": "value2"
        }
    

  • Message without formatting:

        {"key1":"value1","key2":"value2"}
    

Input Metadata

• Message to log - If you don’t need to log the whole message, you can specify here the needed part.

  For example, you have the following incoming message: ncomming message:

    {
      "key1": "value1",
      "key2": "value2",
      "key3": "value3",
      "key4": "value4"
    }
  

  But you need to log only key2 and key4, in this case, you should put here: Message to log:

    {
      "key2": key2,
      "key4": key4
    }
  

Output Metadata

Match the input message metadata

Limitations

• The maximum size of the logged message is 256000 bytes, all data above this will be cut off (use Log without formatting to log more useful data).

Create JSON Patch

Utility to create a JSON patch.

Config Fields

There are no Config Fields in this action.

Input Metadata

• Origin Object - Object that we have now
• Target Object - Object that should be after patch was applied

Output Metadata

• JSON Patch - Series of changes to be applied to go from Origin Object to Target Object

Apply JSON Patch

Utility to apply a JSON patch

Config Fields

There are no Config Fields in this action.

Input Metadata

• Origin Object - Object that we have now
• JSON Patch - Series of changes to be applied to go from Origin Object to Target Object

Output Metadata

• Target Object - Object that should be after patch was applied

Network Diagnostics

Useful to diagnose connectivity issues between an eio pod and some endpoint

Config Fields

There is no Config Fields

Input Metadata

• URL - Full url to the resource. E.g https://github.com

Output Metadata

• pingResult - Result object for ping
• nsLookupResult - Result object for NsLookup
• sslCertCheckResult - Result object for SSL certificate check

Limitations

1. Maximal possible size for an attachment is 10 MB.
2. Attachments mechanism does not work with Local Agent Installation.
3. Delay All option from Delay don’t correctly support Parallel Processing option in component more then 1
4. Delay Each option from Delay in ordinary flow type can handle delay up to 30 sec, if you need more, use real-time type
5. Needs to use Data to transfer field for correct transfer data after Delay component.