Integration Server 10.3 | MIME-S/MIME Developer’s Guide | Building MIME and S/MIME Messages | Creating a MIME Message | Example—Creating a Single-Part MIME Message
 
Example—Creating a Single-Part MIME Message
The following flow service creates a single-part MIME message that contains a simple text message.
Flow service that creates a simple MIME message
Step
Description
1
This step creates an empty MIME object. It does not take any inputs. It puts an empty MIME object named mimeData in the pipeline.
2
This step adds two application-specific message headers in the MIME object. If you view the pipeline, you will see that the mimeHeader input variable is set as follows:
Name
Value
X-DocType
alert
X-Severity
9
3
This step generates the content of the message. This example uses a custom Java service to convert a String containing the following text to an InputStream:
We were not able to process your request because the account
number you gave us has expired. Please correct the account number
and resubmit your request
In practice, you are more likely to acquire your content from a file, the network, or a back-end system.
4
This step adds the content produced by step 3 to the mimeData object. If you view the pipeline, you will note that the stream output variable from step 3 is linked to this step’s content input variable. Because content contains a simple text message, the contenttype and encoding parameters are set as follows:
Parameter
Value
contenttype
text/plain;charset=UTF8
encoding
quoted-printable
isEnvStream is set to “no” because the payload is not a MIME entity.
5
This step generates the finished MIME message. It takes the mimeData object that was populated in steps 2 and 4 and produces an InputStream called envStream that contains the MIME message. At this point, you could pass envStream to any process that expects a MIME message as input.
6
Because you cannot view an InputStream, this example includes a step that converts envStream to a String so you can examine the finished message with Designer. This technique is useful for testing and debugging.
If you examine the contents of string on the Service Result view, you will see a MIME message similar to the following: