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But how to create a contract? The best library I know is called @swarmion/serverless-contracts, created by team Swarmion. It exports super useful utils that will make the contracts we create very powerful in the scope of an AWS serverless application. Follow the article and you will understand why!
If you have difficulties to follow, you can find the code at the end of the article here.
The syntax used to define the output is called JSON Schema. It is a standard way to define the structure of a JSON object. If you know zod, the spirit is similar. Based on Swarmion's roadmap, it will be possible to use zod schemas to defined contracts in the future, which will be super cool!
The syntax used to define the output is called JSON Schema. It is a standard way to define the structure of a JSON object. If you know zod, the spirit is similar. Based on Swarmion's roadmap, it will be possible to use zod schemas to defined contracts in the future, which will be super cool!
I also decided to use the middy library to add CORS management to our lambda function. This will allow us to call our lambda function from our frontend, without having to worry about CORS.