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| package service | |
| import ( | |
| "errors" | |
| "log" | |
| ) | |
| // Calculator represents the service available over the network. | |
| type Calculator int | |
| // Addition stands as an exported method that execute a sum | |
| // operation over the request args. | |
| func (c *Calculator) Addition(rq *Request, rp *Response) error { | |
| log.Printf("Executing addition with args: %+v", rq) | |
| rp.Result = rq.A + rq.B | |
| return nil | |
| } | |
| // Subtraction stands as an exported method that execute a subtraction | |
| // operation over the request args. | |
| func (c *Calculator) Subtraction(rq *Request, rp *Response) error { | |
| log.Printf("Executing subtraction with args: %+v", rq) | |
| rp.Result = 0 | |
| return errors.New("unsupported operation") | |
| } |
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