ipld-eth-beacon-indexer/pkg/beaconclient/queryserver.go
Abdul Rabbani a31c9226ec Handle Skipped Slots (#34)
* Ensure that the node is synced at boot time

* Update test + add logic for checking skipped slots

* Update boot check

* Add skip_sync to config.

* Update a test so it fails
2022-05-17 16:45:40 -04:00

82 lines
2.7 KiB
Go

// This file will contain functions to query the Beacon Chain Server.
package beaconclient
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
log "github.com/sirupsen/logrus"
"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
)
// A helper function to query endpoints that utilize slots.
func querySsz(endpoint string, slot string) ([]byte, int, error) {
log.WithFields(log.Fields{"endpoint": endpoint}).Debug("Querying endpoint")
client := &http.Client{}
req, err := http.NewRequest("GET", endpoint, nil)
if err != nil {
loghelper.LogSlotError(slot, err).Error("Unable to create a request!")
return nil, 0, fmt.Errorf("Unable to create a request!: %s", err.Error())
}
req.Header.Set("Accept", "application/octet-stream")
response, err := client.Do(req)
if err != nil {
loghelper.LogSlotError(slot, err).Error("Unable to query Beacon Node!")
return nil, 0, fmt.Errorf("Unable to query Beacon Node: %s", err.Error())
}
defer response.Body.Close()
rc := response.StatusCode
body, err := ioutil.ReadAll(response.Body)
if err != nil {
loghelper.LogSlotError(slot, err).Error("Unable to turn response into a []bytes array!")
return nil, rc, fmt.Errorf("Unable to turn response into a []bytes array!: %s", err.Error())
}
return body, rc, nil
}
// Object to unmarshal the BlockRootResponse
type BlockRootResponse struct {
Data BlockRootMessage `json:"data"`
}
// Object to unmarshal the BlockRoot Message
type BlockRootMessage struct {
Root string `json:"root"`
}
// A function to query the blockroot for a given slot.
func queryBlockRoot(endpoint string, slot string) (string, error) {
log.WithFields(log.Fields{"endpoint": endpoint}).Debug("Querying endpoint")
client := &http.Client{}
req, err := http.NewRequest("GET", endpoint, nil)
if err != nil {
loghelper.LogSlotError(slot, err).Error("Unable to create a request!")
return "", fmt.Errorf("Unable to create a request!: %s", err.Error())
}
req.Header.Set("Accept", "application/json")
response, err := client.Do(req)
if err != nil {
loghelper.LogSlotError(slot, err).Error("Unable to query Beacon Node!")
return "", fmt.Errorf("Unable to query Beacon Node: %s", err.Error())
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
if err != nil {
loghelper.LogSlotError(slot, err).Error("Unable to turn response into a []bytes array!")
return "", fmt.Errorf("Unable to turn response into a []bytes array!: %s", err.Error())
}
resp := BlockRootResponse{}
if err := json.Unmarshal(body, &resp); err != nil {
loghelper.LogEndpoint(endpoint).WithFields(log.Fields{
"rawMessage": string(body),
"err": err,
}).Error("Unable to unmarshal the block root")
return "", err
}
return resp.Data.Root, nil
}