package api import ( "encoding/json" "net/http" "github.com/google/uuid" "github.com/grassrootseconomics/cic-custodial/internal/custodial" "github.com/grassrootseconomics/cic-custodial/internal/tasker" "github.com/grassrootseconomics/cic-custodial/internal/tasker/task" "github.com/labstack/echo/v4" ) // HandleSignTransfer route. // POST: /api/sign/transfer // JSON Body: // from -> ETH address // to -> ETH address // voucherAddress -> ETH address // amount -> int (6 d.p. precision) // e.g. 1000000 = 1 VOUCHER // Returns the task id. func HandleSignTransfer(cu *custodial.Custodial) func(echo.Context) error { return func(c echo.Context) error { var ( req struct { From string `json:"from" validate:"required,eth_addr_checksum"` To string `json:"to" validate:"required,eth_addr_checksum"` VoucherAddress string `json:"voucherAddress" validate:"required,eth_addr_checksum"` Amount uint64 `json:"amount" validate:"required"` } ) if err := c.Bind(&req); err != nil { return NewBadRequestError(ErrInvalidJSON) } if err := c.Validate(req); err != nil { return err } accountActive, gasQuota, err := cu.Store.GetAccountStatus(c.Request().Context(), req.From) if err != nil { return err } if !accountActive { return c.JSON(http.StatusForbidden, ErrResp{ Ok: false, Message: "Account pending activation. Try again later.", }) } trackingId := uuid.NewString() if gasQuota < 1 { gasRefillPayload, err := json.Marshal(task.AccountPayload{ PublicKey: req.From, TrackingId: trackingId, }) if err != nil { return err } _, err = cu.TaskerClient.CreateTask( c.Request().Context(), tasker.AccountRefillGasTask, tasker.DefaultPriority, &tasker.Task{ Id: trackingId, Payload: gasRefillPayload, }, ) if err != nil { return err } return c.JSON(http.StatusForbidden, ErrResp{ Ok: false, Message: "Out of gas, refill pending. Try again later.", }) } taskPayload, err := json.Marshal(task.TransferPayload{ TrackingId: trackingId, From: req.From, To: req.To, VoucherAddress: req.VoucherAddress, Amount: req.Amount, }) if err != nil { return err } _, err = cu.TaskerClient.CreateTask( c.Request().Context(), tasker.SignTransferTask, tasker.HighPriority, &tasker.Task{ Id: trackingId, Payload: taskPayload, }, ) if err != nil { return err } return c.JSON(http.StatusOK, OkResp{ Ok: true, Result: H{ "trackingId": trackingId, }, }) } }