Example

Demonstrates how the Go standard library httptrace can be used with the SDK to collect HTTP request tracing timing using the SDK's API operation methods like SNS's PublishWithContext.

The trace.go file demonstrates how the httptrace package's ClientTrace can be created to gather timing information from HTTP requests made.

The logger.go file demonstrates how the trace information can be combined to retrieve timing data for the different stages of the request.

The config.go file provides additional configuration settings to control how the HTTP client and its transport is configured. Such as, timeouts, and keepalive.

Usage

Run the example providing your SNS topic's ARN as the -topic parameter. This example assumes that the region is provided via the environment variable and the AWS shared credentials file (~/.aws/credentials)'s default provide provides credentials.

AWS_REGION=us-west-2 go run -tags example . -topic arn:aws:sns:us-west-2:0123456789:mytopicname

Once the example starts you'll be prompted with a Message: statement. Input the message that you'd like to send to the topic on a single line and hit enter to send it.

Message: My Really cool Message

The example will output the http trace timing information for how long the request took.

Latency: 79.863505ms ConnectionReused: false DNSStartAt: 280.452µs DNSDoneAt: 1.526342ms DNSDur: 1.24589ms ConnectStartAt: 1.533484ms ConnectDoneAt: 11.290792ms ConnectDur: 9.757308ms TLSStatAt: 11.331066ms TLSDoneAt: 33.912968ms TLSDur: 22.581902ms RequestWritten 34.951272ms RespFirstByte: 79.534808ms WaitRespFirstByte: 44.583536ms