ipld-eth-server/pkg/client/client.go

44 lines
1.4 KiB
Go
Raw Normal View History

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
2020-06-30 00:16:52 +00:00
// Client is used by watchers to stream chain IPLD data from a vulcanizedb ipfs-blockchain-watcher
package client
2018-12-12 16:01:50 +00:00
import (
"context"
2019-04-15 16:27:21 +00:00
"github.com/ethereum/go-ethereum/rpc"
2019-01-23 06:37:26 +00:00
2020-06-30 00:16:52 +00:00
"github.com/vulcanize/ipfs-blockchain-watcher/pkg/watch"
2018-12-12 16:01:50 +00:00
)
2020-06-30 00:16:52 +00:00
// Client is used to subscribe to the ipfs-blockchain-watcher ipld data stream
type Client struct {
c *rpc.Client
}
// NewClient creates a new Client
func NewClient(c *rpc.Client) *Client {
return &Client{
c: c,
}
}
// Stream is the main loop for subscribing to iplds from an ipfs-blockchain-watcher server
func (c *Client) Stream(payloadChan chan watch.SubscriptionPayload, rlpParams []byte) (*rpc.ClientSubscription, error) {
return c.c.Subscribe(context.Background(), "vdb", payloadChan, "stream", rlpParams)
}