cic-custodial/cmd/service/api.go

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package main
import (
"net/http"
"time"
"github.com/VictoriaMetrics/metrics"
"github.com/go-playground/validator/v10"
"github.com/grassrootseconomics/cic-custodial/internal/api"
"github.com/grassrootseconomics/cic-custodial/internal/custodial"
"github.com/labstack/echo/v4"
"github.com/labstack/echo/v4/middleware"
)
const (
contextTimeout = 5
)
// Bootstrap API server.
func initApiServer(custodialContainer *custodial.Custodial) *echo.Echo {
customValidator := validator.New()
customValidator.RegisterValidation("eth_checksum", api.EthChecksumValidator)
server := echo.New()
server.HideBanner = true
server.HidePort = true
server.Validator = &api.Validator{
ValidatorProvider: customValidator,
}
server.HTTPErrorHandler = customHTTPErrorHandler
server.Use(func(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
c.Set("cu", custodialContainer)
return next(c)
}
})
server.Use(middleware.Recover())
server.Use(middleware.BodyLimit("1M"))
server.Use(middleware.ContextTimeout(time.Duration(contextTimeout * time.Second)))
if ko.Bool("service.metrics") {
server.GET("/metrics", func(c echo.Context) error {
metrics.WritePrometheus(c.Response(), true)
return nil
})
}
apiRoute := server.Group("/api")
apiRoute.POST("/account/create", api.HandleAccountCreate)
apiRoute.POST("/sign/transfer", api.HandleSignTransfer)
apiRoute.GET("/track/:trackingId", api.HandleTrackTx)
return server
}
func customHTTPErrorHandler(err error, c echo.Context) {
if c.Response().Committed {
return
}
he, ok := err.(*echo.HTTPError)
if ok {
var errorMsg string
if m, ok := he.Message.(error); ok {
errorMsg = m.Error()
} else if m, ok := he.Message.(string); ok {
errorMsg = m
}
c.JSON(he.Code, api.ErrResp{
Ok: false,
Message: errorMsg,
})
} else {
lo.Error("api: echo error", "path", c.Path(), "err", err)
c.JSON(http.StatusInternalServerError, api.ErrResp{
Ok: false,
Message: "Internal server error.",
})
}
}