new: feat: add lambdas

.gitignore

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+.vercel

api/index.go

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+package handler
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+)
+
+func HandlerIndex(w http.ResponseWriter, r *http.Request) {
+	currentTime := time.Now().Format(time.RFC850)
+	fmt.Fprintf(w, currentTime)
+	w.Header().Set("Content-Type", "text/html")
+	fmt.Fprintf(w, `
+		Github OAuth2 => <a href="https://github.com/xjh22222228/github-oauth2" target="_blank">https://github.com/xjh22222228/github-oauth2</a>
+		`)
+}

api/statusinvest/companies.go

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+package statusinvest
+
+import (
+	"io/ioutil"
+	"net/http"
+)
+
+func HandlerListCompanies(w http.ResponseWriter, r *http.Request) {
+	client := http.Client{}
+	req, err := http.NewRequest("GET", "https://statusinvest.com.br/acao/companiesnavigation?page=1&size=500", nil)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36")
+	req.Header.Set("Accept", "application/json, text/plain, */*")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	defer resp.Body.Close()
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(resp.StatusCode)
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	w.Write(body)
+}

api/statusinvest/indicators.go

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+package statusinvest
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+type Response struct {
+	Success bool                                `json:"success"`
+	Data    map[string][]map[string]interface{} `json:"data"`
+}
+
+type ParsedResponse map[string]interface{}
+
+func HandlerIndicators(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "GET" {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte("Method not allowed"))
+		return
+	}
+	time := r.URL.Query().Get("time")
+	if time == "" {
+		time = "7"
+	}
+	ticker := r.URL.Query().Get("ticker")
+	if ticker == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		w.Write([]byte("Ticker is required"))
+		return
+	}
+
+	data := url.Values{
+		"codes[]":    strings.Split(ticker, ","),
+		"time":       {time},
+		"byQuarter":  {"false"},
+		"futureData": {"false"},
+	}
+
+	resp, err := http.PostForm("https://statusinvest.com.br/acao/indicatorhistoricallist", data)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	defer resp.Body.Close()
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(resp.StatusCode)
+
+	out, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	var indicators Response
+	err = json.Unmarshal(out, &indicators)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	parsedResponse := ParsedResponse{}
+
+	d := indicators.Data[ticker]
+
+	for _, v := range d {
+		v := v
+		parsedResponse[v["key"].(string)] = v
+	}
+
+	out, err = json.Marshal(parsedResponse)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	w.Write(out)
+}

go.mod

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+module github.com/felipemarinho97/vercel-lambdas
+
+go 1.17

main.go

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+package main
+
+import (
+	"net/http"
+
+	handler "github.com/felipemarinho97/vercel-lambdas/api"
+	"github.com/felipemarinho97/vercel-lambdas/api/statusinvest"
+)
+
+func main() {
+	http.HandleFunc("/", handler.HandlerIndex)
+	http.HandleFunc("/statusinvest/companies", statusinvest.HandlerListCompanies)
+
+	err := http.ListenAndServe(":7006", nil)
+	if err != nil {
+		panic(err)
+	}
+}

vercel.json

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+{
+
+}