Seperate files into their respective packages, init sql handling

This commit is contained in:
Curt Spark 2025-05-11 23:47:31 +01:00
parent 766be03907
commit d42ac510d3
8 changed files with 144 additions and 79 deletions

1
.gitignore vendored Normal file
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@ -0,0 +1 @@
*.db

2
go.mod
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@ -1,3 +1,5 @@
module timefu.li/backend
go 1.24.2
require github.com/mattn/go-sqlite3 v1.14.28

2
go.sum Normal file
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github.com/mattn/go-sqlite3 v1.14.28 h1:ThEiQrnbtumT+QMknw63Befp/ce/nUPgBPMlRFEum7A=
github.com/mattn/go-sqlite3 v1.14.28/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=

92
main.go
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@ -1,88 +1,18 @@
package main
import (
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"os"
"os/signal"
"reflect"
"strings"
"syscall"
"time"
"timefu.li/backend/tubson"
"timefu.li/backend/tubsql"
)
type http_method uint8; const (
GET http_method = iota
POST
PATCH
PUT
DELETE
)
func (method http_method) to_string() string {
switch method {
case GET:
return http.MethodGet
case POST:
return http.MethodPost
case PATCH:
return http.MethodPatch
case PUT:
return http.MethodPut
case DELETE:
return http.MethodDelete
}
return ""
}
type http_status_code int; const (
OK http_status_code = http.StatusOK
INTERNAL_SERVER_ERROR http_status_code = http.StatusInternalServerError
BAD_REQUEST http_status_code = http.StatusBadRequest
)
type empty_request_body struct {}
/* T Representing any request body struct
S Representing any response body struct */
func json_new_route[T any, S any](method http_method, route string, handle_func func(body T, raw_request *http.Request) (S, http_status_code)) {
http.HandleFunc(method.to_string() + " /" + route, func(response http.ResponseWriter, request *http.Request) {
request_body_bytes, err := io.ReadAll(request.Body)
if err != nil {
response.WriteHeader(int(INTERNAL_SERVER_ERROR))
log.Panicln(err)
return
}
var decode_result T
if len(request_body_bytes) != 0 {
decoder := json.NewDecoder(strings.NewReader(string(request_body_bytes)))
decoder.DisallowUnknownFields()
err = decoder.Decode(&decode_result)
if err != nil {
response.WriteHeader(int(BAD_REQUEST))
response.Write([]byte(err.Error()))
log.Println(err)
return
}
}
body, status_code := handle_func(decode_result, request)
encode_result, err := json.Marshal(body)
if err != nil {
response.WriteHeader(int(INTERNAL_SERVER_ERROR))
log.Panicln(err)
return
}
fmt.Println(reflect.VisibleFields(reflect.TypeOf(body)))
response.WriteHeader(int(status_code))
response.Write(encode_result)
})
}
func main() {
type foo_request_body struct {
@ -93,25 +23,29 @@ func main() {
Field1 string
Field2 int
}
foo_route_handler := func(body foo_request_body, raw_request *http.Request) (foo_response_body, http_status_code) {
foo_route_handler := func(body foo_request_body, raw_request *http.Request) (foo_response_body, tubson.Http_status_code) {
return foo_response_body {
Field1: "hi there on foo!",
Field2: body.Arg1 + body.Arg2,
}, OK
}, tubson.OK
}
json_new_route(GET, "foo", foo_route_handler)
tubson.New_route(tubson.GET, "foo", foo_route_handler)
type bar_response_body struct {
Response int
Message string
}
bar_route_handler := func(body empty_request_body, raw_request *http.Request) (bar_response_body, http_status_code) {
bar_route_handler := func(body tubson.Empty_request_body, raw_request *http.Request) (bar_response_body, tubson.Http_status_code) {
return bar_response_body {
Response: 400,
Message: "hi there on bar!",
}, INTERNAL_SERVER_ERROR
}, tubson.INTERNAL_SERVER_ERROR
}
json_new_route(GET, "bar", bar_route_handler)
tubson.New_route(tubson.GET, "bar", bar_route_handler)
db := tubsql.Connect_database()
tubsql.Test_commit(db)
db.Close()
http_server := &http.Server{
Addr: ":8080",

3
tubson/README.org Normal file
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* Tubson
JSON Server and Handler

80
tubson/tubson.go Normal file
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package tubson
import (
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"reflect"
"strings"
)
type Http_method uint8; const (
GET Http_method = iota
POST
PATCH
PUT
DELETE
)
func (method Http_method) to_string() string {
switch method {
case GET:
return http.MethodGet
case POST:
return http.MethodPost
case PATCH:
return http.MethodPatch
case PUT:
return http.MethodPut
case DELETE:
return http.MethodDelete
}
return ""
}
type Http_status_code int; const (
OK Http_status_code = http.StatusOK
INTERNAL_SERVER_ERROR Http_status_code = http.StatusInternalServerError
BAD_REQUEST Http_status_code = http.StatusBadRequest
)
type Empty_request_body struct {}
/* T Representing any request body struct
S Representing any response body struct */
func New_route[T any, S any](method Http_method, route string, handle_func func(body T, raw_request *http.Request) (S, Http_status_code)) {
http.HandleFunc(method.to_string() + " /" + route, func(response http.ResponseWriter, request *http.Request) {
request_body_bytes, err := io.ReadAll(request.Body)
if err != nil {
response.WriteHeader(int(INTERNAL_SERVER_ERROR))
log.Panicln(err)
return
}
var decode_result T
if len(request_body_bytes) != 0 {
decoder := json.NewDecoder(strings.NewReader(string(request_body_bytes)))
decoder.DisallowUnknownFields()
err = decoder.Decode(&decode_result)
if err != nil {
response.WriteHeader(int(BAD_REQUEST))
response.Write([]byte(err.Error()))
log.Println(err)
return
}
}
body, status_code := handle_func(decode_result, request)
encode_result, err := json.Marshal(body)
if err != nil {
response.WriteHeader(int(INTERNAL_SERVER_ERROR))
log.Panicln(err)
return
}
fmt.Println(reflect.VisibleFields(reflect.TypeOf(body)))
response.WriteHeader(int(status_code))
response.Write(encode_result)
})
}

3
tubsql/README.org Normal file
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* Tubsql
SQL Handler

40
tubsql/tubsql.go Normal file
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package tubsql
import (
"context"
"database/sql"
"log"
_ "github.com/mattn/go-sqlite3"
)
func Connect_database() *sql.DB {
db, err := sql.Open("sqlite3", "./test.db")
if err != nil {
log.Fatal(err)
}
return db
}
func Test_commit(db *sql.DB) {
tx, err := db.Begin()
if err != nil {
log.Fatal(err)
}
ctx := context.Background()
_, err = tx.Exec("CREATE TABLE IF NOT EXISTS users ( name varchar(255), age int )")
_, err = tx.ExecContext(
ctx,
"INSERT INTO users (name, age) VALUES ($1, $2)",
"testing",
42,
)
if err != nil {
tx.Rollback()
log.Fatal(err)
}
tx.Commit()
}