Mukan Erkin Törük
26b204bd04
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108 lines
2.5 KiB
Go
108 lines
2.5 KiB
Go
package cosmosfaucet
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import (
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"context"
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"encoding/json"
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"net/http"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/ignite/cli/v29/ignite/pkg/errors"
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"github.com/ignite/cli/v29/ignite/pkg/xhttp"
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)
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type TransferRequest struct {
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// AccountAddress to request for coins.
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AccountAddress string `json:"address"`
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// Coins that are requested.
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// default ones used when this one isn't provided.
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Coins []string `json:"coins,omitempty"`
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}
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func NewTransferRequest(accountAddress string, coins []string) TransferRequest {
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return TransferRequest{
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AccountAddress: accountAddress,
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Coins: coins,
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}
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}
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type TransferResponse struct {
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Hash string `json:"hash,omitempty"`
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Error string `json:"error,omitempty"`
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}
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func (f Faucet) faucetHandler(w http.ResponseWriter, r *http.Request) {
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var req TransferRequest
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// decode request into req.
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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responseError(w, http.StatusBadRequest, err)
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return
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}
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// determine coins to transfer.
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coins, err := f.coinsFromRequest(req)
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if err != nil {
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responseError(w, http.StatusBadRequest, err)
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return
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}
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// try performing the transfer
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hash, err := f.Transfer(r.Context(), req.AccountAddress, coins)
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if err != nil {
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if errors.Is(err, context.Canceled) {
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return
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}
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responseError(w, http.StatusInternalServerError, err)
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return
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}
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responseSuccess(w, hash)
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}
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// FaucetInfoResponse is the faucet info payload.
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type FaucetInfoResponse struct {
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// IsAFaucet indicates that this is a faucet endpoint.
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// useful for auto discoveries.
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IsAFaucet bool `json:"is_a_faucet"`
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// ChainID is chain id of the chain that faucet is running for.
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ChainID string `json:"chain_id"`
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}
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func (f Faucet) faucetInfoHandler(w http.ResponseWriter, _ *http.Request) {
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_ = xhttp.ResponseJSON(w, http.StatusOK, FaucetInfoResponse{
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IsAFaucet: true,
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ChainID: f.chainID,
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})
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}
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// coinsFromRequest determines tokens to transfer from transfer request.
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func (f Faucet) coinsFromRequest(req TransferRequest) (sdk.Coins, error) {
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if len(req.Coins) == 0 {
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return f.coins.Sort(), nil
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}
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coins := sdk.NewCoins()
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for _, c := range req.Coins {
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coin, err := sdk.ParseCoinNormalized(c)
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if err != nil {
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return nil, err
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}
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coins = coins.Add(coin)
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}
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return coins, nil
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}
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func responseSuccess(w http.ResponseWriter, hash string) {
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_ = xhttp.ResponseJSON(w, http.StatusOK, TransferResponse{
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Hash: hash,
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})
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}
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func responseError(w http.ResponseWriter, code int, err error) {
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_ = xhttp.ResponseJSON(w, code, TransferResponse{
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Error: err.Error(),
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})
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}
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