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Converting users table into JSON form (dbname: practice_db, password: admin@67, user: hygull, port: 8080{localhost}, port: 3306{mysql} )
/**
{
"created_on": "27 may 2017",
"todos": [
"go get github.com/go-sql-driver/mysql",
"postman(optional)",
"browser(optional)",
],
"aim": "Converting a table into JSON form",
"created_by": "Rishikesh Agrawani"
}
*/
/*
mysql> select * from users;
+----+-----------+----------+----------+-------------------------------+--------------+-------------------------------------------------------------------------------------------------+
| id | fname | lname | uname | email | contact | profile_pic |
+----+-----------+----------+----------+-------------------------------+--------------+-------------------------------------------------------------------------------------------------+
| 1 | Rishikesh | Agrawani | hygull | rishikesh0014051992@gmail.com | 917353787704 | https://cdn4.iconfinder.com/data/icons/rcons-user/32/user_group_users_accounts_contacts-512.png |
| 2 | Sandeep | E | sandeep | sandeepeswar8@gmail.com | 919739040038 | https://cdn4.iconfinder.com/data/icons/eldorado-user/40/user-512.png |
| 3 | Darshan | Sidar | darshan | sidardarshan@gmail.com | 917996917565 | https://cdn4.iconfinder.com/data/icons/rcons-user/32/child_boy-512.png |
| 4 | Surendra | Prajapat | surendra | surendrakgadwal@gmail.com | 918385894407 | https://cdn4.iconfinder.com/data/icons/rcons-user/32/account_male-512.png |
| 5 | Mukesh | Jakhar | mukesh | mjakhar.kjakhar@gmail.com | 919772254140 | https://cdn2.iconfinder.com/data/icons/rcons-user/32/male-circle-512.png |
+----+-----------+----------+----------+-------------------------------+--------------+-------------------------------------------------------------------------------------------------+
5 rows in set (0.00 sec)
mysql>
*/
package main
import "log"
import "net/http"
import "encoding/json"
import (
_"github.com/go-sql-driver/mysql"
"database/sql"
)
func users(w http.ResponseWriter, r *http.Request) {
// db, err := sql.Open("mysql", "<username>:<password>@tcp(127.0.0.1:<port>)/<dbname>?charset=utf8" )
db, err := sql.Open("mysql", "hygull:admin@67@tcp(127.0.0.1:3306)/practice_db?charset=utf8")
w.Header().Set("Content-Type", "application/json")
if err != nil {
log.Fatal(err)
}
rows, err := db.Query("select id, fname, lname, uname, email, contact, profile_pic from users")
if err != nil {
log.Fatal(err)
}
type User struct {
Id int `json:"id"`
Fname string `json:"firstname"`
Lname string `json:"lastname"`
Uname string `json:"username"`
Email string `json:"email"`
Contact int `json:"contact"`
ProfilePic string `json:"profile_pic"`
}
var users []User
for rows.Next() {
var id, contact int
var fname string
var lname string
var uname, email, profile_pic string
rows.Scan(&id ,&fname, &lname, &uname, &email, &contact, &profile_pic)
users = append(users, User{id, fname, lname, uname, email, contact, &profile_pic })
}
usersBytes, _ := json.Marshal(&users)
w.Write(usersBytes)
db.Close()
}
func main() {
http.HandleFunc("/users/", users)
http.ListenAndServe(":8080", nil)
}
/* REQUSET
http://127.0.0.1:8080/users/
*/
/* RESPONSE
[
{
"id": 1,
"firstname": "Rishikesh",
"lastname": "Agrawani",
"username": "hygull",
"email": "rishikesh0014051992@gmail.com",
"contact": 917353787704,
"profile_pic": "https://cdn4.iconfinder.com/data/icons/rcons-user/32/user_group_users_accounts_contacts-512.png"
},
{
"id": 2,
"firstname": "Sandeep",
"lastname": "E",
"username": "sandeep",
"email": "sandeepeswar8@gmail.com",
"contact": 919739040038,
"profile_pic": "https://cdn4.iconfinder.com/data/icons/eldorado-user/40/user-512.png"
},
{
"id": 3,
"firstname": "Darshan",
"lastname": "Sidar",
"username": "darshan",
"email": "sidardarshan@gmail.com",
"contact": 917996917565,
"profile_pic": "https://cdn4.iconfinder.com/data/icons/rcons-user/32/child_boy-512.png"
},
{
"id": 4,
"firstname": "Surendra",
"lastname": "Prajapat",
"username": "surendra",
"email": "surendrakgadwal@gmail.com",
"contact": 918385894407,
"profile_pic": "https://cdn4.iconfinder.com/data/icons/rcons-user/32/account_male-512.png"
},
{
"id": 5,
"firstname": "Mukesh",
"lastname": "Jakhar",
"username": "mukesh",
"email": "mjakhar.kjakhar@gmail.com",
"contact": 919772254140,
"profile_pic": "https://cdn2.iconfinder.com/data/icons/rcons-user/32/male-circle-512.png"
}
]
*/
@jeffrey33704

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@jeffrey33704 jeffrey33704 commented Feb 2, 2021

Awesome. Your code has helped to put me in the right direction. Thank you!

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