icapclient

Overview ¶

Package icapclient is a client package for the ICAP protocol

Here is a basic example:

 package main

 import (
	  "fmt"
	  "log"
	  "net/http"
	  "time"

	  ic "github.com/egirna/icap-client"
 )

 func main() {
  /* preparing the http request required for the RESPMOD */
	 httpReq, err := http.NewRequest(http.MethodGet, "http://localhost:8000/sample.pdf", nil)

	 if err != nil {
	  	log.Fatal(err)
	 }

  /* making the http client & making the request call to get the response needed for the icap RESPMOD call */
	 httpClient := &http.Client{}

	 httpResp, err := httpClient.Do(httpReq)

	 if err != nil {
		 log.Fatal(err)
	 }

  /* making a icap request with OPTIONS method */
	 optReq, err := ic.NewRequest(ic.MethodOPTIONS, "icap://127.0.0.1:1344/respmod", nil, nil)

	 if err != nil {
		 log.Fatal(err)
		 return
	 }

  /* making the icap client responsible for making the requests */
	 client := &ic.Client{
		 Timeout: 5 * time.Second,
	 }

  /* making the OPTIONS request call */
	 optResp, err := client.Do(optReq)

	 if err != nil {
		 log.Fatal(err)
		 return
	 }

  /* making a icap request with RESPMOD method */
	 req, err := ic.NewRequest(ic.MethodRESPMOD, "icap://127.0.0.1:1344/respmod", httpReq, httpResp)

	 if err != nil {
		 log.Fatal(err)
	 }

	 req.SetPreview(optResp.PreviewBytes) // setting the preview bytes obtained from the OPTIONS call

  /* making the RESPMOD request call */
	 resp, err := client.Do(req)

	 if err != nil {
		 log.Fatal(err)
	 }

	 fmt.Println(resp.StatusCode)

 }

See https://github.com/egirna/icap-client/examples.