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receiver_handler.go
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/
receiver_handler.go
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package httphandler
import (
"errors"
"fmt"
"net/http"
"github.com/go-chi/chi/v5"
"github.com/stellar/go/support/render/httpjson"
"github.com/stellar/stellar-disbursement-platform-backend/db"
"github.com/stellar/stellar-disbursement-platform-backend/internal/data"
"github.com/stellar/stellar-disbursement-platform-backend/internal/serve/httperror"
"github.com/stellar/stellar-disbursement-platform-backend/internal/serve/httpresponse"
"github.com/stellar/stellar-disbursement-platform-backend/internal/serve/validators"
)
type ReceiverHandler struct {
Models *data.Models
DBConnectionPool db.DBConnectionPool
}
type GetReceiverResponse struct {
data.Receiver
Wallets []data.ReceiverWallet `json:"wallets"`
Verifications []data.ReceiverVerification `json:"verifications,omitempty"`
}
func (rh ReceiverHandler) buildReceiversResponse(receivers []data.Receiver, receiversWallets []data.ReceiverWallet) []GetReceiverResponse {
var responses []GetReceiverResponse
for _, receiver := range receivers {
wallets := make([]data.ReceiverWallet, 0)
for _, wallet := range receiversWallets {
if wallet.Receiver.ID == receiver.ID {
wallets = append(wallets, wallet)
}
}
responses = append(responses, GetReceiverResponse{
Receiver: receiver,
Wallets: wallets,
})
}
return responses
}
func (rh ReceiverHandler) GetReceiver(w http.ResponseWriter, r *http.Request) {
receiverID := chi.URLParam(r, "id")
ctx := r.Context()
response, err := db.RunInTransactionWithResult(ctx, rh.DBConnectionPool, nil, func(dbTx db.DBTransaction) (response *GetReceiverResponse, innerErr error) {
receiver, innerErr := rh.Models.Receiver.Get(ctx, dbTx, receiverID)
if innerErr != nil {
return nil, fmt.Errorf("getting receiver by ID: %w", innerErr)
}
receiverWallets, innerErr := rh.Models.ReceiverWallet.GetWithReceiverIds(ctx, dbTx, data.ReceiverIDs{receiver.ID})
if innerErr != nil {
return nil, fmt.Errorf("getting receiver wallets with receiver IDs: %w", innerErr)
}
receiverVerifications, innerErr := rh.Models.ReceiverVerification.GetAllByReceiverId(ctx, dbTx, receiver.ID)
if innerErr != nil {
return nil, fmt.Errorf("getting receiver verifications for receiver ID: %w", innerErr)
}
return &GetReceiverResponse{
Receiver: *receiver,
Wallets: receiverWallets,
Verifications: receiverVerifications,
}, nil
})
if err != nil {
if errors.Is(err, data.ErrRecordNotFound) {
errorResponse := fmt.Sprintf("could not retrieve receiver with ID: %s", receiverID)
httperror.NotFound(errorResponse, err, nil).Render(w)
} else {
msg := fmt.Sprintf("Cannot retrieve receiver with ID %s", receiverID)
httperror.InternalError(ctx, msg, err, nil).Render(w)
}
return
}
httpjson.RenderStatus(w, http.StatusOK, response, httpjson.JSON)
}
func (rh ReceiverHandler) GetReceivers(w http.ResponseWriter, r *http.Request) {
validator := validators.NewReceiverQueryValidator()
queryParams := validator.ParseParametersFromRequest(r)
queryParams.Filters = validator.ValidateAndGetReceiverFilters(queryParams.Filters)
if validator.HasErrors() {
httperror.BadRequest("request invalid", nil, validator.Errors).Render(w)
return
}
ctx := r.Context()
httpResponse, err := db.RunInTransactionWithResult(ctx, rh.DBConnectionPool, nil, func(dbTx db.DBTransaction) (*httpresponse.PaginatedResponse, error) {
totalReceivers, err := rh.Models.Receiver.Count(ctx, dbTx, queryParams)
if err != nil {
return nil, fmt.Errorf("error retrieving receivers count: %w", err)
}
if totalReceivers == 0 {
httpResponse := httpresponse.NewEmptyPaginatedResponse()
return &httpResponse, nil
}
receivers, err := rh.Models.Receiver.GetAll(ctx, dbTx, queryParams)
if err != nil {
return nil, fmt.Errorf("error retrieving receivers: %w", err)
}
receiverIDs := rh.Models.Receiver.ParseReceiverIDs(receivers)
receiversWallets, err := rh.Models.ReceiverWallet.GetWithReceiverIds(ctx, dbTx, receiverIDs)
if err != nil {
return nil, fmt.Errorf("error retrieving receiver wallets: %w", err)
}
receiversResponse := rh.buildReceiversResponse(receivers, receiversWallets)
httpResponse, err := httpresponse.NewPaginatedResponse(r, receiversResponse, queryParams.Page, queryParams.PageLimit, totalReceivers)
if err != nil {
return nil, fmt.Errorf("error creating paginated response for receivers: %w", err)
}
return &httpResponse, nil
})
if err != nil {
httperror.InternalError(ctx, "Cannot retrieve receivers", err, nil).Render(w)
return
}
httpjson.RenderStatus(w, http.StatusOK, httpResponse, httpjson.JSON)
}
// GetReceiverVerification returns a list of verification types
func (rh ReceiverHandler) GetReceiverVerificationTypes(w http.ResponseWriter, r *http.Request) {
httpjson.Render(w, data.GetAllVerificationFields(), httpjson.JSON)
}