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main.go
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main.go
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package main
import (
"context"
"github.com/joho/godotenv"
"github.com/streadway/amqp"
"google.golang.org/api/customsearch/v1"
"google.golang.org/api/option"
"database/sql"
_ "github.com/lib/pq"
)
func main() {
err := godotenv.Load()
FailOnError(err, "Error loading .env file")
var myEnv map[string]string
myEnv, err = godotenv.Read()
FailOnError(err, "Error loading .env file")
db, err := sql.Open("postgres", myEnv["POSTGRESQL_CONNECTION_URL"])
FailOnError(err, "Error connecting to database")
defer db.Close()
conn, err := amqp.Dial(myEnv["RABBITMQ_CONNECTION_URL"])
FailOnError(err, "Failed to connect to RabbitMQ")
defer conn.Close()
ch, err := conn.Channel()
FailOnError(err, "Failed to open a channel")
defer ch.Close()
q, err := ch.QueueDeclare(
myEnv["RABBITMQ_CHANNEL"],
false,
false,
false,
false,
nil,
)
FailOnError(err, "Failed to declare a queue")
ctx := context.Background()
customsearchService, err := customsearch.NewService(ctx, option.WithAPIKey(myEnv["GOOGLE_CUSTOM_SERACH_API_KEY"]))
FailOnError(err, "Failed to create custom search service")
// launching checker in another go routine
go Checker(ch, q, db, customsearchService, myEnv["GOOGLE_CUSTOM_SEARCH_ENGINE_ID"])
Server(ch, q, db)
}