90 lines
2.5 KiB
Go
90 lines
2.5 KiB
Go
package response
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"github.com/beckn-one/beckn-onix/pkg/log"
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"github.com/beckn-one/beckn-onix/pkg/model"
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)
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// SendAck sends an acknowledgment response (ACK) to the client.
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func SendAck(w http.ResponseWriter) {
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resp := &model.Response{
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Message: model.Message{
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Ack: model.Ack{
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Status: model.StatusACK,
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},
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},
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}
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data, _ := json.Marshal(resp) //should not fail here
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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_, err := w.Write(data)
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if err != nil {
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http.Error(w, "failed to write response", http.StatusInternalServerError)
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return
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}
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}
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// nack sends a negative acknowledgment (NACK) response with an error message.
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func nack(ctx context.Context, w http.ResponseWriter, err *model.Error, status int) {
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resp := &model.Response{
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Message: model.Message{
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Ack: model.Ack{
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Status: model.StatusNACK,
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},
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Error: err,
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},
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}
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data, _ := json.Marshal(resp) //should not fail here
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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_, er := w.Write(data)
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if er != nil {
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log.Debugf(ctx, "Error writing response: %v, MessageID: %s", er, ctx.Value(model.ContextKeyMsgID))
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http.Error(w, fmt.Sprintf("Internal server error, MessageID: %s", ctx.Value(model.ContextKeyMsgID)), http.StatusInternalServerError)
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return
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}
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}
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// internalServerError generates an internal server error response.
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func internalServerError(ctx context.Context) *model.Error {
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return &model.Error{
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Code: http.StatusText(http.StatusInternalServerError),
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Message: fmt.Sprintf("Internal server error, MessageID: %s", ctx.Value(model.ContextKeyMsgID)),
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}
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}
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// SendNack processes different types of errors and sends an appropriate NACK response.
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func SendNack(ctx context.Context, w http.ResponseWriter, err error) {
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var schemaErr *model.SchemaValidationErr
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var signErr *model.SignValidationErr
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var badReqErr *model.BadReqErr
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var notFoundErr *model.NotFoundErr
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switch {
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case errors.As(err, &schemaErr):
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nack(ctx, w, schemaErr.BecknError(), http.StatusBadRequest)
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return
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case errors.As(err, &signErr):
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nack(ctx, w, signErr.BecknError(), http.StatusUnauthorized)
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return
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case errors.As(err, &badReqErr):
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nack(ctx, w, badReqErr.BecknError(), http.StatusBadRequest)
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return
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case errors.As(err, ¬FoundErr):
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nack(ctx, w, notFoundErr.BecknError(), http.StatusNotFound)
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return
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default:
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nack(ctx, w, internalServerError(ctx), http.StatusInternalServerError)
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return
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}
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}
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