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taskFetchPricings.go
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taskFetchPricings.go
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// Copyright 2018 MSolution.IO
//
// 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 main
import (
"context"
"database/sql"
"encoding/json"
"github.com/trackit/jsonlog"
"github.com/trackit/trackit-server/aws/pricings"
"github.com/trackit/trackit-server/db"
"github.com/trackit/trackit-server/models"
)
// taskFetchPricings fetches the EC2 pricings and saves them in the database
func taskFetchPricings(ctx context.Context) (err error) {
logger := jsonlog.LoggerFromContextOrDefault(ctx)
res, err := pricings.FetchEc2Pricings(ctx)
if err != nil {
logger.Error("Failed to retrieve ec2 pricings", err.Error())
return
}
serializedPricing, err := json.Marshal(res)
if err != nil {
logger.Error("Failed to serialize ec2 pricings", err.Error())
return
}
var tx *sql.Tx
defer func() {
if tx != nil {
if err != nil {
tx.Rollback()
} else {
tx.Commit()
}
}
}()
if tx, err = db.Db.BeginTx(ctx, nil); err != nil {
logger.Error("Failed to initiate sql transaction", err.Error())
return
} else {
ec2PricingDb, _ := models.AwsPricingByProduct(tx, pricings.EC2ServiceCode)
if ec2PricingDb == nil {
ec2PricingDb = &models.AwsPricing{
Product: pricings.EC2ServiceCode,
}
}
ec2PricingDb.Pricing = serializedPricing
err = ec2PricingDb.Save(tx)
if err != nil {
logger.Error("Failed to save ec2 pricings", err.Error())
return
}
}
return
}