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lancet/docs/netutil.md
dudaodong 40b2560752 docs: add v2 in import path
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# Netutil
Package netutil contains functions to get net information and send http request.
<div STYLE="page-break-after: always;"></div>
## Source:
- [https://github.com/duke-git/lancet/blob/main/netutil/net.go](https://github.com/duke-git/lancet/blob/main/netutil/net.go)
- [https://github.com/duke-git/lancet/blob/main/netutil/http.go](https://github.com/duke-git/lancet/blob/main/netutil/http.go)
<div STYLE="page-break-after: always;"></div>
## Usage:
```go
import (
"github.com/duke-git/lancet/v2/netutil"
)
```
<div STYLE="page-break-after: always;"></div>
## Index
- [ConvertMapToQueryString](#ConvertMapToQueryString)
- [GetInternalIp](#GetInternalIp)
- [GetIps](#GetIps)
- [GetMacAddrs](#GetMacAddrs)
- [GetPublicIpInfo](#GetPublicIpInfo)
- [IsPublicIP](#IsPublicIP)
- [HttpGet](#HttpGet)
- [HttpDelete](#HttpDelete)
- [HttpPost](#HttpPost)
- [HttpPut](#HttpPut)
- [HttpPatch](#HttpPatch)
- [ParseHttpResponse](#ParseHttpResponse)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="ConvertMapToQueryString">ConvertMapToQueryString</span>
<p>Convert map to url query string.</p>
<b>Signature:</b>
```go
func ConvertMapToQueryString(param map[string]any) string
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
var m = map[string]any{
"c": 3,
"a": 1,
"b": 2,
}
qs := netutil.ConvertMapToQueryString(m)
fmt.Println(qs) //a=1&b=2&c=3
}
```
### <span id="GetInternalIp">GetInternalIp</span>
<p>Get internal ip information.</p>
<b>Signature:</b>
```go
func GetInternalIp() string
```
<b>Example:</b>
```go
package main
import (
"fmt"
"net"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
internalIp := netutil.GetInternalIp()
ip := net.ParseIP(internalIp)
fmt.Println(ip) //192.168.1.9
}
```
### <span id="GetIps">GetIps</span>
<p>Get all ipv4 list.</p>
<b>Signature:</b>
```go
func GetIps() []string
```
<b>Example:</b>
```go
package main
import (
"fmt"
"net"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
ips := netutil.GetIps()
fmt.Println(ips) //[192.168.1.9]
}
```
### <span id="GetMacAddrs">GetMacAddrs</span>
<p>Get all mac addresses list.</p>
<b>Signature:</b>
```go
func GetMacAddrs() []string {
```
<b>Example:</b>
```go
package main
import (
"fmt"
"net"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
addrs := netutil.GetMacAddrs()
fmt.Println(addrs)
}
```
### <span id="GetPublicIpInfo">GetPublicIpInfo</span>
<p>Get public ip information.</p>
<b>Signature:</b>
```go
func GetPublicIpInfo() (*PublicIpInfo, error)
type PublicIpInfo struct {
Status string `json:"status"`
Country string `json:"country"`
CountryCode string `json:"countryCode"`
Region string `json:"region"`
RegionName string `json:"regionName"`
City string `json:"city"`
Lat float64 `json:"lat"`
Lon float64 `json:"lon"`
Isp string `json:"isp"`
Org string `json:"org"`
As string `json:"as"`
Ip string `json:"query"`
}
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
publicIpInfo, err := netutil.GetPublicIpInfo()
if err != nil {
fmt.Println(err)
}
fmt.Println(publicIpInfo)
}
```
### <span id="IsPublicIP">IsPublicIP</span>
<p>Checks if a ip is public or not.</p>
<b>Signature:</b>
```go
func IsPublicIP(IP net.IP) bool
```
<b>Example:</b>
```go
package main
import (
"fmt"
"net"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
ip1 := net.ParseIP("192.168.0.1")
ip2 := net.ParseIP("36.112.24.10")
fmt.Println(netutil.IsPublicIP(ip1)) //false
fmt.Println(netutil.IsPublicIP(ip2)) //true
}
```
### <span id="HttpGet">HttpGet</span>
<p>Send http get request.</p>
<b>Signature:</b>
```go
// params[0] is header which type should be http.Header or map[string]string,
// params[1] is query param which type should be url.Values or map[string]any,
// params[2] is post body which type should be []byte.
// params[3] is http client which type should be http.Client.
func HttpGet(url string, params ...any) (*http.Response, error)
```
<b>Example:</b>
```go
package main
import (
"fmt"
"io/ioutil"
"log"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
url := "https://jsonplaceholder.typicode.com/todos/1"
header := map[string]string{
"Content-Type": "application/json",
}
resp, err := netutil.HttpGet(url, header)
if err != nil {
log.Fatal(err)
}
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(body)
}
```
### <span id="HttpPost">HttpPost</span>
<p>Send http post request.</p>
<b>Signature:</b>
```go
// params[0] is header which type should be http.Header or map[string]string,
// params[1] is query param which type should be url.Values or map[string]any,
// params[2] is post body which type should be []byte.
// params[3] is http client which type should be http.Client.
func HttpPost(url string, params ...any) (*http.Response, error)
```
<b>Example:</b>
```go
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
url := "https://jsonplaceholder.typicode.com/todos"
header := map[string]string{
"Content-Type": "application/json",
}
type Todo struct {
UserId int `json:"userId"`
Title string `json:"title"`
}
todo := Todo{1, "TestAddToDo"}
bodyParams, _ := json.Marshal(todo)
resp, err := netutil.HttpPost(url, header, nil, bodyParams)
if err != nil {
log.Fatal(err)
}
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(body)
}
```
### <span id="HttpPut">HttpPut</span>
<p>Send http put request.</p>
<b>Signature:</b>
```go
// params[0] is header which type should be http.Header or map[string]string,
// params[1] is query param which type should be url.Values or map[string]any,
// params[2] is post body which type should be []byte.
// params[3] is http client which type should be http.Client.
func HttpPut(url string, params ...any) (*http.Response, error)
```
<b>Example:</b>
```go
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
url := "https://jsonplaceholder.typicode.com/todos/1"
header := map[string]string{
"Content-Type": "application/json",
}
type Todo struct {
Id int `json:"id"`
UserId int `json:"userId"`
Title string `json:"title"`
}
todo := Todo{1, 1, "TestPutToDo"}
bodyParams, _ := json.Marshal(todo)
resp, err := netutil.HttpPut(url, header, nil, bodyParams)
if err != nil {
log.Fatal(err)
}
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(body)
}
```
### <span id="HttpDelete">HttpDelete</span>
<p>Send http delete request.</p>
<b>Signature:</b>
```go
// params[0] is header which type should be http.Header or map[string]string,
// params[1] is query param which type should be url.Values or map[string]any,
// params[2] is post body which type should be []byte.
// params[3] is http client which type should be http.Client.
func HttpDelete(url string, params ...any) (*http.Response, error)
```
<b>Example:</b>
```go
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
url := "https://jsonplaceholder.typicode.com/todos/1"
resp, err := netutil.HttpDelete(url)
if err != nil {
log.Fatal(err)
}
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(body)
}
```
### <span id="HttpPatch">HttpPatch</span>
<p>Send http patch request.</p>
<b>Signature:</b>
```go
// params[0] is header which type should be http.Header or map[string]string,
// params[1] is query param which type should be url.Values or map[string]any,
// params[2] is post body which type should be []byte.
// params[3] is http client which type should be http.Client.
func HttpPatch(url string, params ...any) (*http.Response, error)
```
<b>Example:</b>
```go
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
url := "https://jsonplaceholder.typicode.com/todos/1"
header := map[string]string{
"Content-Type": "application/json",
}
type Todo struct {
Id int `json:"id"`
UserId int `json:"userId"`
Title string `json:"title"`
}
todo := Todo{1, 1, "TestPatchToDo"}
bodyParams, _ := json.Marshal(todo)
resp, err := netutil.HttpPatch(url, header, nil, bodyParams)
if err != nil {
log.Fatal(err)
}
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(body)
}
```
### <span id="ParseHttpResponse">ParseHttpResponse</span>
<p>Decode http response to specified interface.</p>
<b>Signature:</b>
```go
func ParseHttpResponse(resp *http.Response, obj any) error
```
<b>Example:</b>
```go
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"github.com/duke-git/lancet/v2/netutil"
)
func main() {
url := "https://jsonplaceholder.typicode.com/todos/1"
header := map[string]string{
"Content-Type": "application/json",
}
resp, err := netutil.HttpGet(url, header)
if err != nil {
log.Fatal(err)
}
type Todo struct {
Id int `json:"id"`
UserId int `json:"userId"`
Title string `json:"title"`
Completed bool `json:"completed"`
}
toDoResp := &Todo{}
err = netutil.ParseHttpResponse(resp, toDoResp)
if err != nil {
log.Fatal(err)
}
fmt.Println(toDoResp)
}
```
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