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Add an example to query pinot broker endpoint and make authentication…
… using http header. (#28) * Pinot Client with configuration * Update main.go --------- Co-authored-by: Xiang Fu <[email protected]>
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package main | ||
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import ( | ||
"encoding/json" | ||
"fmt" | ||
"time" | ||
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pinot "github.com/startreedata/pinot-client-go/pinot" | ||
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log "github.com/sirupsen/logrus" | ||
) | ||
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func connectPinot() *pinot.Connection { | ||
pinotClient, err := pinot.NewWithConfig(&pinot.ClientConfig{ | ||
BrokerList: []string{"https://broker.pinot.myorg.mycompany.startree.cloud"}, | ||
HTTPTimeout: 1500 * time.Millisecond, | ||
ExtraHTTPHeader: map[string]string{ | ||
"authorization": "Basic <API-TOKEN>", | ||
}, | ||
}) | ||
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if err != nil { | ||
log.Fatalln(err) | ||
} | ||
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if pinotClient != nil { | ||
log.Infof("Successfully established connection with Pinot Server!") | ||
} | ||
return pinotClient | ||
} | ||
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func main() { | ||
pinotClient := connectPinot() | ||
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table := "airlineStats" | ||
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pinotQueries := []string{ | ||
"select count(*) as cnt from airlineStats limit 1", | ||
} | ||
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log.Printf("Querying SQL") | ||
for _, query := range pinotQueries { | ||
log.Printf("Trying to query Pinot: %v\n", query) | ||
brokerResp, err := pinotClient.ExecuteSQL(table, query) | ||
if err != nil { | ||
log.Fatalln(err) | ||
} | ||
printBrokerResp(brokerResp) | ||
} | ||
} | ||
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func printBrokerResp(brokerResp *pinot.BrokerResponse) { | ||
log.Infof("Query Stats: response time - %d ms, scanned docs - %d, total docs - %d", brokerResp.TimeUsedMs, brokerResp.NumDocsScanned, brokerResp.TotalDocs) | ||
if brokerResp.Exceptions != nil && len(brokerResp.Exceptions) > 0 { | ||
jsonBytes, _ := json.Marshal(brokerResp.Exceptions) | ||
log.Infof("brokerResp.Exceptions:\n%s\n", jsonBytes) | ||
return | ||
} | ||
if brokerResp.ResultTable != nil { | ||
jsonBytes, _ := json.Marshal(brokerResp.ResultTable) | ||
log.Infof("brokerResp.ResultTable:\n%s\n", jsonBytes) | ||
line := "" | ||
for c := 0; c < brokerResp.ResultTable.GetColumnCount(); c++ { | ||
line += fmt.Sprintf("%s(%s)\t", brokerResp.ResultTable.GetColumnName(c), brokerResp.ResultTable.GetColumnDataType(c)) | ||
} | ||
line += "\n" | ||
for r := 0; r < brokerResp.ResultTable.GetRowCount(); r++ { | ||
for c := 0; c < brokerResp.ResultTable.GetColumnCount(); c++ { | ||
line += fmt.Sprintf("%v\t", brokerResp.ResultTable.Get(r, c)) | ||
} | ||
line += "\n" | ||
} | ||
log.Infof("ResultTable:\n%s", line) | ||
return | ||
} | ||
if brokerResp.AggregationResults != nil { | ||
jsonBytes, _ := json.Marshal(brokerResp.AggregationResults) | ||
log.Infof("brokerResp.AggregationResults:\n%s\n", jsonBytes) | ||
return | ||
} | ||
if brokerResp.SelectionResults != nil { | ||
jsonBytes, _ := json.Marshal(brokerResp.SelectionResults) | ||
log.Infof("brokerResp.SelectionResults:\n%s\n", jsonBytes) | ||
return | ||
} | ||
} |