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feat: expose http response headers in ServerError (#100)
* feat: (WIP) adds response headers to ServerError * test: refactor TestHttpErrorWithHeaders * chore: fix assert in new test * docs: adds examples for working with HTTP response headers in ServerError. * docs: update CHANGELOG.md * chore: improve assert error type
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,56 @@ | ||
package main | ||
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||
import ( | ||
"context" | ||
"errors" | ||
"fmt" | ||
"log" | ||
"os" | ||
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"github.com/InfluxCommunity/influxdb3-go/influxdb3" | ||
) | ||
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// Demonstrates working with HTTP response headers in ServerError | ||
func main() { | ||
// Retrieve credentials from environment variables. | ||
url := os.Getenv("INFLUX_URL") | ||
token := os.Getenv("INFLUX_TOKEN") | ||
database := os.Getenv("INFLUX_DATABASE") | ||
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// Instantiate a client using your credentials. | ||
client, err := influxdb3.New(influxdb3.ClientConfig{ | ||
Host: url, | ||
Token: token, | ||
Database: database, | ||
}) | ||
if err != nil { | ||
panic(err) | ||
} | ||
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// Close the client when finished and raise any errors. | ||
defer func(client *influxdb3.Client) { | ||
err := client.Close() | ||
if err != nil { | ||
panic(err) | ||
} | ||
}(client) | ||
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// Attempt to write line protocol synchronously | ||
// N.B. faulty line protocol used here, because it | ||
// guarantees a server error, but errors can be thrown | ||
// for other reasons, such as 503 temporary unavailable | ||
// or even 429 too many requests. | ||
err = client.Write(context.Background(), | ||
[]byte("air,sensor=HRF03,device_ID=42 humidity=67.1,temperature=")) | ||
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if err != nil { | ||
logMessage := "WARNING write error: " + err.Error() | ||
logMessage += "\n ServerError.Headers:\n" | ||
var svErr *influxdb3.ServerError | ||
errors.As(err, &svErr) | ||
for key, value := range svErr.Headers { | ||
logMessage += fmt.Sprintf(" %s: %s\n", key, value) | ||
} | ||
log.Println(logMessage) | ||
} | ||
} |
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