ecadlabs/signatory

package server

import (
    "context"
    "encoding/json"
    "net/http"

    "github.com/ecadlabs/signatory/pkg/errors"
)

// HTTPServer represents a subset of http.Server methods
type HTTPServer interface {
    ListenAndServe() error
    Shutdown(ctx context.Context) error
}

func jsonResponse(w http.ResponseWriter, status int, v interface{}) {
    w.Header().Set("Content-Type", "application/json; charset=utf-8")
    w.WriteHeader(status)
    json.NewEncoder(w).Encode(v)
}

func tezosJSONError(w http.ResponseWriter, err error) {
    type errorResponse []struct {
        ID   string `json:"id,omitempty"`
        Kind string `json:"kind,omitempty"`
        Msg  string `json:"msg,omitempty"`
    }

    var status int
    if e, ok := err.(errors.HTTPError); ok {
        status = e.HTTPStatus()
    } else {
        status = http.StatusInternalServerError
    }

    res := errorResponse{
        {
            ID:   "failure",
            Kind: "temporary",
            Msg:  err.Error(),
        },
    }
    jsonResponse(w, status, &res)
}

func jsonError(w http.ResponseWriter, err error) {
    type errorResponse struct {
        Error string `json:"error,omitempty"`
    }

    var status int
    if e, ok := err.(errors.HTTPError); ok {
        status = e.HTTPStatus()
    } else {
        status = http.StatusInternalServerError
    }

    res := errorResponse{
        Error: err.Error(),
    }

    jsonResponse(w, status, &res)
}