Documentation
¶
Overview ¶
Examples of encoding and decoding assorted formats.
Example (EncodingJSONComplex) ¶
package main
import (
"encoding/json"
"fmt"
"log"
)
func main() {
type Message struct {
Id string
From struct {
Name string
Id string
}
Message string
Actions []struct {
Name string
Link string
}
Type string
Created_time string
Updated_time string
}
type ResponseData struct {
Data []Message `json:"data"`
}
json_data := `
{
"data": [
{
"id": "X999_Y999",
"from": {
"name": "Tom Brady", "id": "X12"
},
"message": "Looking forward to 2010!",
"actions": [
{
"name": "Comment",
"link": "http://www.facebook.com/X999/posts/Y999"
},
{
"name": "Like",
"link": "http://www.facebook.com/X999/posts/Y999"
}
],
"type": "status",
"created_time": "2010-08-02T21:27:44+0000",
"updated_time": "2010-08-02T21:27:44+0000"
},
{
"id": "X998_Y998",
"from": {
"name": "Peyton Manning", "id": "X18"
},
"message": "Where's my contract?",
"actions": [
{
"name": "Comment",
"link": "http://www.facebook.com/X998/posts/Y998"
},
{
"name": "Like",
"link": "http://www.facebook.com/X998/posts/Y998"
}
],
"type": "status",
"created_time": "2010-08-02T21:27:44+0000",
"updated_time": "2010-08-02T21:27:44+0000"
}
]
}
`
data := ResponseData{}
json.Unmarshal([]byte(json_data), &data)
for _, message := range data.Data {
fmt.Println(message)
}
json_dump, dump_err := json.Marshal(data)
if dump_err != nil {
log.Fatal(dump_err)
}
fmt.Println(string(json_dump))
}
Output: {X999_Y999 {Tom Brady X12} Looking forward to 2010! [{Comment http://www.facebook.com/X999/posts/Y999} {Like http://www.facebook.com/X999/posts/Y999}] status 2010-08-02T21:27:44+0000 2010-08-02T21:27:44+0000} {X998_Y998 {Peyton Manning X18} Where's my contract? [{Comment http://www.facebook.com/X998/posts/Y998} {Like http://www.facebook.com/X998/posts/Y998}] status 2010-08-02T21:27:44+0000 2010-08-02T21:27:44+0000} {"data":[{"Id":"X999_Y999","From":{"Name":"Tom Brady","Id":"X12"},"Message":"Looking forward to 2010!","Actions":[{"Name":"Comment","Link":"http://www.facebook.com/X999/posts/Y999"},{"Name":"Like","Link":"http://www.facebook.com/X999/posts/Y999"}],"Type":"status","Created_time":"2010-08-02T21:27:44+0000","Updated_time":"2010-08-02T21:27:44+0000"},{"Id":"X998_Y998","From":{"Name":"Peyton Manning","Id":"X18"},"Message":"Where's my contract?","Actions":[{"Name":"Comment","Link":"http://www.facebook.com/X998/posts/Y998"},{"Name":"Like","Link":"http://www.facebook.com/X998/posts/Y998"}],"Type":"status","Created_time":"2010-08-02T21:27:44+0000","Updated_time":"2010-08-02T21:27:44+0000"}]}
Example (EncodingJSONSimple) ¶
package main
import (
"encoding/json"
"fmt"
)
func main() {
type Person struct {
Id int
Name string
}
json_data := `{"id": 1, "name": "John Doe"}`
fmt.Println(json_data)
person := Person{}
json.Unmarshal([]byte(json_data), &person)
fmt.Printf("person.Id\n// %d\n", person.Id)
fmt.Printf("person.Name\n// %s\n", person.Name)
}
Output: {"id": 1, "name": "John Doe"} person.Id // 1 person.Name // John Doe
Example (EncodingXMLBasic) ¶
package main
import (
"encoding/xml"
"fmt"
"log"
)
func main() {
var xmlData = `
<?xml version="1.0" encoding="UTF-8"?>
<letter>
<title maxlength="10"> Quote Letter </title>
<salutation limit="40">Dear Daniel,</salutation>
<text>Thank you f or sending us the information on <emphasis>SDL Trados Studio 2009</emphasis>.
We like your products and think they certainly represent the most powerful translation solution on the market.
We especially like the <component translate="yes">XML Parser rules</component> options in the <component translate="no">XML</component> filter.
It has helped us to set up support for our XML files in a flash.
We have already downloaded the latest version from your Customer Center.</text>
<title maxlength="40"> Quote Details </title>
<text> We would like to order 50 licenses.
Please send us a quote. Keep up the good work!</text>
<greetings minlength="10">Yours sincerely,</greetings>
<signature> Paul Smith</signature>
<address translate="yes">Smith & Company Ltd.</address>
<address translate="no">Smithtown</address>
<weblink>http://www.smith-company-ltd.com</weblink>
<logo alt="Logo of Smith and Company Ltd." address="http://www.smith-company-ltd.com/logo.jpg"/>
</letter>
`
type Letter struct {
Title string `xml:"title"`
Salutation string `xml:"salutation"`
}
var obj Letter
err := xml.Unmarshal([]byte(xmlData), &obj)
if err != nil {
log.Fatal(err)
}
fmt.Println(obj.Title[1:6])
fmt.Println(obj.Salutation[0:4])
}
Output: Quote Dear
Example (EncodingXMLSlices) ¶
package main
import (
"encoding/xml"
"fmt"
"log"
)
func main() {
var xmlData = `
<?xml version="1.0" encoding="UTF-8"?>
<letter>
<title maxlength="10"> Quote Letter </title>
<salutation limit="40">Dear Daniel,</salutation>
<text>Thank you f or sending us the information on <emphasis>SDL Trados Studio 2009</emphasis>.
We like your products and think they certainly represent the most powerful translation solution on the market.
We especially like the <component translate="yes">XML Parser rules</component> options in the <component translate="no">XML</component> filter.
It has helped us to set up support for our XML files in a flash.
We have already downloaded the latest version from your Customer Center.</text>
<title maxlength="40"> Quote Details </title>
<text> We would like to order 50 licenses.
Please send us a quote. Keep up the good work!</text>
<greetings minlength="10">Yours sincerely,</greetings>
<signature> Paul Smith</signature>
<address translate="yes">Smith & Company Ltd.</address>
<address translate="no">Smithtown</address>
<weblink>http://www.smith-company-ltd.com</weblink>
<logo alt="Logo of Smith and Company Ltd." address="http://www.smith-company-ltd.com/logo.jpg"/>
</letter>
`
type Letter struct {
Text []string `xml:"text"`
}
var obj Letter
err := xml.Unmarshal([]byte(xmlData), &obj)
if err != nil {
log.Fatal(err)
}
for _, v := range obj.Text {
fmt.Println(v[1:3])
}
}
Output: ha We
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