httptrace

README

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 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.

2020/07/21 15:39:07 Latency: 278.508656ms, Validate: 19.515µs, Build: 190.755µs, Attempts: 1,
	Attempt: 0, Latency: 278.240054ms, Sign: 453.163µs, Send: 277.580235ms, Unmarshal: 202.311µs, WillRetry: false,
		HTTP: Latency: 277.580856ms, ConnReused: false, GetConn: 225.662398ms, WriteRequest: 325.956µs, WaitResponseFirstByte: 277.509316ms, ReadResponseHeader: 71.234µs,
			Conn: DNS: 20.385136ms, Connect: 14.947772ms, TLS: 189.910822ms,

Message: second
2020/07/21 15:39:09 Latency: 101.936094ms, Validate: 2.644µs, Build: 67.157µs, Attempts: 1,
	Attempt: 0, Latency: 101.836442ms, Sign: 122.098µs, Send: 101.517516ms, Unmarshal: 191.31µs, WillRetry: false,
		HTTP: Latency: 101.518147ms, ConnReused: true, GetConn: 38.265µs, WriteRequest: 178.058µs, WaitResponseFirstByte: 101.457147ms, ReadResponseHeader: 60.526µs,

Message: third
2020/07/21 15:39:10 Latency: 32.373919ms, Validate: 2.998µs, Build: 39.136µs, Attempts: 1,
	Attempt: 0, Latency: 32.295677ms, Sign: 104.978µs, Send: 32.040306ms, Unmarshal: 146.096µs, WillRetry: false,
		HTTP: Latency: 32.04078ms, ConnReused: true, GetConn: 33.36µs, WriteRequest: 166.508µs, WaitResponseFirstByte: 31.980933ms, ReadResponseHeader: 59.235µs,

Message: fourth
2020/07/21 15:39:13 Latency: 33.353819ms, Validate: 2.002µs, Build: 36.807µs, Attempts: 1,
	Attempt: 0, Latency: 33.29846ms, Sign: 70.238µs, Send: 33.125914ms, Unmarshal: 98.181µs, WillRetry: false,
		HTTP: Latency: 33.126453ms, ConnReused: true, GetConn: 47.516µs, WriteRequest: 251.875µs, WaitResponseFirstByte: 33.05992ms, ReadResponseHeader: 66.017µs,