Every integration can be broken down into three parts - a Source, Processor and Destination:
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1. Source
Responsible for gathering data from the source system. There are two broad categories for how data can be gathered:
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Polling interfaces are set to run at regular intervals and query the source for data to be processed. Some examplesData can be queried in various ways, such as:
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Listening interfaces are event triggered and listen for data sent by a source system. Some examplesFor example:
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2. Processor
Once data is received, there is often some kind of processing that needs to be done in order for the data to be compatible with intended downstream systems. Some examples can include:
Filtering unwanted messages.
Mapping from one field to another, or more generally, converting from one message type to another.
Transforming data (e.g. data formatting, string manipulation, code mapping, database lookup, etc.).
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3. Destination
With the data in the correct format, all that is left is to send the data downstream to the destination.
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This can be done in a variety of ways such as:
Sending through TCP (i.e. LLP, HTTP, etc.)
Inserting
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/Updating a database
Dropping a file with the data in a file system (local directory, SFTP, etc.)