zeroshade commented on code in PR #39081:
URL: https://github.com/apache/arrow/pull/39081#discussion_r1448015584
##########
http/examples/get/client.go:
##########
@@ -0,0 +1,53 @@
+package main
+
+import (
+ "fmt"
+ "net/http"
+ "time"
+
+ "github.com/apache/arrow/go/v15/arrow"
+ "github.com/apache/arrow/go/v15/arrow/ipc"
+ "github.com/apache/arrow/go/v15/arrow/memory"
+)
+
+func main() {
+ start := time.Now()
+ resp, err := http.Get("http://localhost:8000";)
+ if err != nil {
+ panic(err)
+ }
+
+ if resp.StatusCode != http.StatusOK {
+ panic(fmt.Errorf("got non-200 status: %d", resp.StatusCode))
+ }
+ defer resp.Body.Close()
+
+ rdr, err := ipc.NewReader(resp.Body,
ipc.WithAllocator(memory.DefaultAllocator))
+ if err != nil {
+ panic(err)
+ }
+ defer rdr.Release()
+
+ batches := make([]arrow.Record, 0)
+ defer func() {
+ for _, b := range batches {
+ b.Release()
+ }
+ }()
+
+ for rdr.Next() {
+ rec := rdr.Record()
+ rec.Retain()
+ batches = append(batches, rec)
+ }
+
+ if rdr.Err() != nil {
+ panic(rdr.Err())
+ }
+
+ execTime := time.Since(start)
+
+ fmt.Println(resp.ContentLength, " bytes recieved")
Review Comment:
we can probably wrap the `resp.Body` with a simple counter pass through or a
bufio object buffering the bytes allowing us to count them as we pass them to
the `ipc` reader.
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