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Comment by mkuznets | Hacker News Reader

XML Schema Definitions for all ISO20022 messages are public: https://www.iso20022.org/iso-20022-message-definitions

There are tools that can turn the schema files into POJO/dataclasses/structs/etc in your language of choice, sometimes with proper data validation. Not sure about Typescript, but Java/Python/Golang definitely have those.

It may very well be lost knowledge in certain ecosystems, but generating a valid XML based on the given schema is generally a solved problem. Not sure if the projects adds anything beyond that.

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Thanks for your comment mkuznets. I appreciate your input regarding XSD to class conversion - I agree that this is a super useful concept for sending ISO20022 files.

I think there's always some ergonomic gap between these XML Schema generated classes and SDKs that developers are comfortable using. My intention for this library is for a non-payment developer to be able to interact with the ISO20022 schemas, while being as true to the underlying models as possible.

I am currently implementing an ISO20022 integration at a large financial institution. The way these generally work is that whatever network you're connecting with will require a certain standard number of an ISO20022 message. When you send the generated messages, they must be valid as per the specific schema in question. If not, they will be rejected. I'm speaking specifically about payment networks, not consumer level payments.

Generating classes from the XSD's is fairly trivial in most languages. The hard part is being able to read the XSD's and then being able to create the ISO20022 message with all of the required elements (given all the possible combinations of valid elements).

I guess creating a code-time library where it was not possible to create an ISO20022 message that invalid would be interesting. But being able to create invalid ISO20022 is fairly easy to do for free.

Hi Svapnil, Sorry to bother in between but yeah logicalmind is right in this regards. @logicalmind you can use my solution which do all which is required for ISO20022 to create and validate. https://pixelbyaj.com/iso20022/#iso20022_about and for DEMO https://pixelbyaj.com/iso20022/demo/#/. I have all the required tools in the for the same.

Yeah exactly, with Go this should literally just be the type definition and that's it. You can do XML marshal, byte reader and http request with the standard library

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