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main.go
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main.go
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// +build !js
// demo/add_order is a short program that adds an order to 0x Mesh via RPC
package main
import (
"context"
"github.com/0xProject/0x-mesh/rpc"
"github.com/0xProject/0x-mesh/zeroex"
"github.com/plaid/go-envvar/envvar"
log "github.com/sirupsen/logrus"
)
type clientEnvVars struct {
// RPCAddress is the address of the 0x Mesh node to communicate with.
RPCAddress string `envvar:"RPC_ADDRESS"`
}
func main() {
log.SetFormatter(&log.JSONFormatter{})
env := clientEnvVars{}
if err := envvar.Parse(&env); err != nil {
panic(err)
}
client, err := rpc.NewClient(env.RPCAddress)
if err != nil {
log.WithError(err).Fatal("could not create client")
}
ctx := context.Background()
orderEventsChan := make(chan []*zeroex.OrderEvent, 8000)
clientSubscription, err := client.SubscribeToOrders(ctx, orderEventsChan)
if err != nil {
log.WithError(err).Fatal("Couldn't set up OrderStream subscription")
}
defer clientSubscription.Unsubscribe()
for {
select {
case orderEvents := <-orderEventsChan:
for _, orderEvent := range orderEvents {
log.WithFields(log.Fields{
"event": orderEvent,
}).Printf("received order event")
}
case err := <-clientSubscription.Err():
log.Fatal(err)
}
}
}