This repository contains a serverless web API project implemented in Golang, utilizing AWS API Gateway for endpoint management and DynamoDB for data storage.
The program is structured as follows:
- The program starts in
main.go. - In
main.go, it checks the HTTP method of the incoming request.- If the HTTP method is "GET," it calls
handlers.GetUser. - If the HTTP method is "POST," it calls
handlers.CreateUser. - If the HTTP method is "PUT," it calls
handlers.UpdateUser. - If the HTTP method is "DELETE," it calls
handlers.DeleteUser. - For any other method, it calls
handlers.UnhandledMethod.
- If the HTTP method is "GET," it calls
- In the
handlerspackage:handlers.GetUsercalls functions in theuserpackage to fetch user data.handlers.CreateUsercalls functions in theuserpackage to create a new user.handlers.UpdateUsercalls functions in theuserpackage to update a user's data.handlers.DeleteUsercalls functions in theuserpackage to delete a user.handlers.UnhandledMethodis a utility function to handle unsupported HTTP methods.
- In the
userpackage:user.FetchUserretrieves user data from a DynamoDB table.user.FetchUsersretrieves a list of users from the DynamoDB table.user.CreateUsercreates a new user in the DynamoDB table.user.UpdateUserupdates user data in the DynamoDB table.user.DeleteUserdeletes a user from the DynamoDB table.
- Additionally, the
validatorspackage is used to check if an email is valid or not.
- The
apiResponsepackage is used to generate API responses with appropriate status codes and JSON bodies.
This structure outlines the flow of function calls in the program, starting from main.go and branching out to the functions in the handlers, user, validators, and apiResponse packages.
