Go utils

Helper package for our go projects.

Slice

StringInSlice()

JSON

RenderDataAsJSON()

WriteJson()

Request

ParseFromRequest()

ReadAndRewind()

GetMatchingPrefixLength()

SendRequest()

This function will try to send the request in the background several times if the response is failes.

Example usage:

type MyType struc {
  Field1 string `json:"field1"`
  Field2 string `json:"field2"`
}
myValue := MyType{
  Field1: "Hello",
  Field2: "GO",
}
queryBody, _ := json.Marshal(myValue)
contentReader := bytes.NewBuffer(queryBody)
  go func() {
    cancel := make(chan bool)
    res := utils.SendRequest(utils.Request{
      URL:     "http://example.com",
      Method:  "POST",
      Body:    contentReader,
      Headers: []http.Header{{"Content-Type": []string{"application/json"}}},
    })

    response := <-res
    if response == nil {
      log.Println("request failed")
    } else {
      log.Printf("cool, the reponse is: %v\n", response)
    }
  }()

If you want to cancel the request just set it in the cancel chanel:

go func() {
    cancel := make(chan bool)
    res := utils.SendRequest(utils.Request{
      URL:     "http://example.com",
      Method:  "POST",
      Body:    contentReader,
      Headers: []http.Header{{"Content-Type": []string{"application/json"}}},
      Cancel:  cancel,
    })
    time.Sleep(time.Second * 5)
    cancel <- true
  }()

Or if you want to combine them:

go func() {
    cancel := make(chan bool)
    res := utils.SendRequest(utils.Request{
      URL:     "http://example.com",
      Method:  "POST",
      Body:    contentReader,
      Headers: []http.Header{{"Content-Type": []string{"application/json"}}},
      Cancel:  cancel,
    })
    go func() {
      time.Sleep(time.Second * 5)
      cancel <- true
    }()
    response := <-res
    if response == nil {
      log.Println("this request is failed")
    } else {
      log.Printf("cool, the reponse is: %v\n", response)
    }
  }()

Misc

RandomHash()

Error

ErrInvalidUrl

ErrInvalidMail

ErrInvalidMongoIdHash

Types

Url

• String()
• Validate()

Email

• String()
• Validate()