75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
package main
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import (
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"net/http"
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"encoding/json"
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//"context"
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"fmt"
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"log"
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_ "github.com/lib/pq"
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"github.com/jmoiron/sqlx"
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"github.com/go-chi/chi/v5"
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"github.com/ggicci/httpin"
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)
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const DEFAULT_RESULT_COUNT = 50;
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type GetTransactionPaginationInput struct {
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ResultCount int `in:"query=result_count"`
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PageNum int `in:"query=page_num"`
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}
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func apiRouter() http.Handler {
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r := chi.NewRouter()
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//r.Use(ApiLoginRequired)
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r.With(
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httpin.NewInput(GetTransactionPaginationInput{}),
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).Get("/get_transactions", getTransactions)
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r.Post("/new_transaction", newTransaction)
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return r
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}
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func getTransactions(w http.ResponseWriter, req *http.Request) {
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db, err := sqlx.Connect("postgres", DB_CONNECTION_STRING)
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if err != nil {
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log.Fatal(err)
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}
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defer db.Close()
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input := req.Context().Value(httpin.Input).(*GetTransactionPaginationInput)
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if input.ResultCount == 0 {
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input.ResultCount = DEFAULT_RESULT_COUNT
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}
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transactions := []Transaction{}
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err = db.Select(&transactions,
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"SELECT trns_id, trns_amount, trns_description, " +
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"trns_account, trns_bucket, trns_date " +
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"FROM rcnt.transactions ORDER BY trns_id DESC " +
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fmt.Sprintf("OFFSET %d ROWS FETCH NEXT %d ROWS ONLY",
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input.PageNum, input.ResultCount))
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for _, trns := range transactions {
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//bytes, err := json.Marshal(trns)
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bytes, err := json.MarshalIndent(trns, "", "\t")
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if err != nil {
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log.Fatal(err)
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}
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fmt.Fprintf(w, string(bytes))
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}
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}
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func newTransaction(w http.ResponseWriter, req *http.Request) {
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decoder := json.NewDecoder(req.Body)
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var t Transaction
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err := decoder.Decode(&t)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Fprintf(w, "New transaction created for Account: %d, with an Amount of: %s",
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t.Account, t.Amount)
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}
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