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In this article, I am introduction query and search cloudwatch insights basic. APIGW statistical according api key id fields @timestamp, @message | filter @message like /API Key ID/ | parse @message "API Key ID: *" as @apikeyid | stats count(*) by ...
install package: go get https://github.com/segmentio/kafka-go Create Topic In Kafka: create topic name logging topic logging has 1 partition Producer create folder producer: create file main.go in folder producer copy and paste code: package...
Comparing the Check If-Else String package main import ( "strings" "testing" ) func CheckIfElseEmpty(s string) string { if s == "sdfsdsdfsdsdfsdsdfsdsdfsdsdfsd" { return s } return s } func CheckIfElseLen(s string) strin...
Comparing performance return error create file return.go func newErr() error { return errors.new("this is error") } func fmtErr() error { return fmt.Errorf("this is error") } create file return_test.go func BenchmarkNewErr(b *testing.B) ...
Code example: connect redis: func InitRedis() *redis.Client { rdb := redis.NewClient(&redis.Options{ Addr: "localhost:6379", Password: "", // no password set DB: 0, // use default DB }) return rdb } mai...
![[Golang] Use Redis implement attempt access in period](https://cdn.hashnode.com/res/hashnode/image/upload/v1670666363008/2ZJJNCsyt.jpeg)
Hello, Currently I am implement a struct with 2 type String and Number. Normally, there will be this error: err type String json: cannot unmarshal string into Go struct field Request.amount of type float64 or err type String json: cannot unmarshal n...
Resize image I have small demo use golang language resize image-base64: this is source-code: https://github.com/ducnpdev/open-dev/tree/master/usecase#resize-image Code Example: function input image-base64 and output is a image: func ResizeImageF...
Why Selecting an appropriate hardware configuration for a Kafka broker can be more art than science. Kafka itself has no strict requirement on a specific hardware configura‐ tion, and will run without issue on any system. Once performance becomes a c...
Suppose you have an application that needs to read messages from a Kafka topic, run some validations against them, and write the results to another data store. In this case your application will create a consumer object, subscribe to the appropriate ...