104 lines
2.2 KiB
Go
104 lines
2.2 KiB
Go
package main
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import (
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"database/sql"
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"encoding/json"
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"fmt"
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"net/http"
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"time"
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_ "github.com/lib/pq"
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)
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//Go Best practices: https://github.com/golovers/effective-go
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type Item struct {
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Id int32 `json:"id"`
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Name int32 `json:"name"`
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ValueCents int32 `json:"valueCents"`
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PurchaseCostCents int32 `json:"purchasedCostCents"`
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Aquired time.Time `json:"aquired"`
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Description string `json:"description"`
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Notes string `json:"notes"`
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SoldForCents int32 `json:"soldForCents"`
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SoldTo string `json:"soldTo"`
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Category Category `json:"category"`
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Subcategory Subcategory `json:"subcategory"`
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}
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type Category struct {
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Id int32 `json:"id"`
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Name string `json:"name"`
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}
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type Subcategory struct {
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Id int32 `json:"id"`
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Name string `json:"name"`
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CategoryId int32 `json:"categoryId"`
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}
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func main() {
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http.HandleFunc("/data", get)
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err := http.ListenAndServe(":8080", nil)
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if err != nil {
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panic(err)
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}
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}
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func get(w http.ResponseWriter, r *http.Request) {
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c := sql_test()
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// if c.Id == 0 {
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// w.WriteHeader(http.StatusBadGateway)
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// w.Write([]byte("Failed"))
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// return
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// }
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jsonBytes, err := json.Marshal(c)
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if err != nil {
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w.WriteHeader(http.StatusMethodNotAllowed)
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w.Write([]byte("Failed 3"))
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return
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}
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w.WriteHeader(http.StatusOK)
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w.Write(jsonBytes)
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}
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func sql_test() []Category {
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//Note: The postgres driver seems to get confused when no password is supplied, so omit it in the connection sting.
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//https://rajyavardhan.medium.com/when-you-get-relation-does-not-exist-in-postgres-7ffb0c3c674b
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psqlInfo := fmt.Sprintf("host=%s port=%d user=%s dbname=%s sslmode=disable", "localhost", 5432, "postgres", "inventory")
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db, err := sql.Open("postgres", psqlInfo)
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if err != nil {
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panic(err)
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}
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defer db.Close()
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rows, err := db.Query("SELECT * FROM category;")
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if err != nil {
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panic(err)
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}
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defer rows.Close()
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var categories []Category
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for rows.Next() {
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var category Category
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if err = rows.Scan(&category.Id, &category.Name); err != nil {
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println(err.Error())
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}
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categories = append(categories, category)
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}
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return categories
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}
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