If you want to learn more about http, here is an interesting post on HTTP security headers If you like what you read, share your thoughts in the comment section. By changing some of the default settings of HTTP Client, we can achieve a High-performance HTTP client for production use. In this article, we discussed the problems around the 'net/http' client default configurations. If you are using http.Get(URL) or &Clientīy increasing connection per host and the total number of idle connection, this will increase the performance and serve more request with minimal server resources.Ĭonnection pool size and connection per host count can be increased as per server resources and requirements. The HTTP client does not contain the request timeout setting by default. In the time when I was working with HTTP Client, I Observed some problems and their solutions, listed below: Problem:1 Default Http Client While working on the Golang projects, I realized that improper configuration of HTTP might crash your server anytime. We will take a hands-on approach in the coming sections to explore how HTTP requests can be made in Golang or Go, as I will refer to the language for the rest of the post.
In Golang, the net/http package comes with the default settings that we need to adjust according to our high-performance requirement.įor setting up HTTP clients for making requests, most programming languages have different frameworks in place. HTTP requests are very essential to access resources from the same or remote server. Given a slow server package main import ( " fmt" " net. Request, _ httprouter.HTTP (hypertext transfer protocol) is a communication protocol that transfers data between client and server. (From aaronlevy on IRC) It's hard for a client to know when a HTTP request failed due to timeout, and when for other reasons. Let’s take at the following example of a simple HTTP Server:ģ router.
#Golang http client timeout code#
The code used for this post is available on Github. The following diagram should make things much more clearer regarding when those timeouts are used.Īnother interesting function related to those timeout fields, called http.TimeoutHandler, could be useful in some cases where we want to specify a much more granular timeout for concrete handlers. IdleTimeout: is the maximum amount of time to wait for the next request when keep-alives are enabled.WriteTimeout: is the maximum duration before timing out writes of the response.
The net/http.Server type includes different Timeout fields used for configuring how much time the request should take depending on the step the connection is at the moment, making sure those values are configured correctly allows our HTTP Servers to correctly determine when to drop a connection: Go’s HTTP package uses a struct called Client to manage the internals of communicating over HTTP (S). In this post I will focus on HTTP Servers, more specifically on the type net/http.Server that is part of the standard library in Go and the configuration options we need to indicate when using it: Timeouts. Or to rephrase it, it means being able to handle errors in a way such our service can still operate those errors could come from inside our implementation or being caused from the inputs that we’re receiving from our customers. …the ability to provide and maintain an acceptable level of service in the face of faults and challenges to normal operation. According to Wikipedia, Resilience (emphasis mine) is:
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