codegen's Introduction

Generate DTO for Rest APIs

Generate DTO for REST APIs for typesafe communication between backend and frontend.

Supported primitive types: int, float, double, string
Enum types are supported via string arrays
Anonymous types are supported where we can define the fields of an entity as an json object
Arrays are supported with the keyword list
Maps of primitive key types are supported with the keyword map

The following languages are supported

Typescript
Java
Golang

CLI examples

Typescript: npx ts-node index.ts --file=test/contract.json --output=typescript --typescript_out=output/typescript
Java: npx ts-node index.ts --file=test/contract.json --output=java --java_out=output/java
Golang: npx ts-node index.ts --file=test/contract.json --output=go --go_out=output/golang

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codegen's Issues

Import problems in java

In case the main fields of a type do not have any list or map, but the anonymous types have any of them, they are not imported into the file even though they are required

Struct type as keys in Golang maps

User can supply any struct as key to golang struct but golang only supports structs that are comparable (have primitive type of fields of have struct as fields that are themselves comparable)

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