The GreenSwapp API uses API keys to authenticate requests. You can get API keys by contacting GreenSwapp.
Your API keys carry many privileges, so be sure to keep them secure! Do not share your secret API keys in publicly accessible areas such as GitHub, client-side code, and so forth.
Every incoming request to the API must contain an API key. You can use API key by passing the API key as the x-api-key in HTTP header of each incoming HTTP request.
All API requests must be made over HTTPS. Calls made over plain HTTP will fail. API requests without authentication will also fail.
Example with cURL:
curl \
-X GET https://trial.greenswapp.com/product?product=Oatly+Oat+Milk+Barista+Edition \
-H "x-api-key: wURhYA73Ix6UeJzMv1hDB5mRmD0CU"