forked from dfuse-io/dfuse-eosio
/
get_transaction.go
93 lines (81 loc) · 2.99 KB
/
get_transaction.go
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// Copyright 2020 dfuse Platform Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rest
import (
"net/http"
"net/url"
"github.com/gorilla/mux"
"github.com/streamingfast/derr"
"github.com/streamingfast/dmetering"
"github.com/streamingfast/validator"
"github.com/zhongshuwen/dfuse-eosio/eosws"
"github.com/zhongshuwen/dfuse-eosio/eosws/mdl"
)
func GetTransactionHandler(db eosws.DB) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
pathVariables := mux.Vars(r)
request := &getTransactionRequest{
TransactionID: pathVariables["id"],
}
errors := validateGetTransactionRequest(request)
if len(errors) > 0 {
eosws.WriteError(w, r, derr.RequestValidationError(r.Context(), errors))
//////////////////////////////////////////////////////////////////////
// Billable event on REST API endpoint
// WARNING: Ingress / Egress bytess is taken care by the middleware
//////////////////////////////////////////////////////////////////////
dmetering.EmitWithContext(dmetering.Event{
Source: "eosws",
Kind: "REST API",
Method: "/v0/transactions/{id}",
RequestsCount: 1,
ResponsesCount: 1,
}, ctx)
//////////////////////////////////////////////////////////////////////
return
}
transaction, err := db.GetTransaction(r.Context(), request.TransactionID)
if err != nil {
eosws.WriteError(w, r, derr.Wrap(err, "failed to get transaction"))
return
}
transactionLifecycle, err := mdl.ToV1TransactionLifecycle(transaction)
if err != nil {
eosws.WriteError(w, r, derr.Wrap(err, "failed transform transaction to model"))
return
}
eosws.WriteJSON(w, r, transactionLifecycle)
//////////////////////////////////////////////////////////////////////
// Billable event on REST API endpoint
// WARNING: Ingress / Egress bytess is taken care by the middleware
//////////////////////////////////////////////////////////////////////
dmetering.EmitWithContext(dmetering.Event{
Source: "eosws",
Kind: "REST API",
Method: "/v0/transactions/{id}",
RequestsCount: 1,
ResponsesCount: 1,
}, ctx)
//////////////////////////////////////////////////////////////////////
})
}
type getTransactionRequest struct {
TransactionID string `json:"id"`
}
func validateGetTransactionRequest(request *getTransactionRequest) url.Values {
return validator.ValidateStruct(request, validator.Rules{
"id": []string{"required", "eos.trxID"},
})
}