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feat(api) add price endpoint handler
+42
+42
internal/handlers/price.go
+42
internal/handlers/price.go
···
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package handlers
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import (
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"encoding/json"
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"log/slog"
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"net/http"
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"time"
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"github.com/eagleusb/proxycon/internal/types"
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)
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// priceEndpoint is the handler function for `GET /price?at=<timestamp>`
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func (h *HttpServer) priceEndpoint(w http.ResponseWriter, r *http.Request) {
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at := r.URL.Query().Get("at")
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if at == "" {
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http.Error(w, "missing query parameter: at", http.StatusBadRequest)
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return
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}
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if _, err := time.Parse(time.RFC3339, at); err != nil {
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http.Error(w, "invalid timestamp: must be RFC3339 format", http.StatusBadRequest)
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return
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}
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prices := h.datasource.GetPrices()
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for _, p := range prices {
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if p.Timestamp == at {
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w.Header().Set("Content-Type", "application/json")
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if err := json.NewEncoder(w).Encode(types.PriceResponse{
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Data: []types.Entry{
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{Amount: p.Price, Timestamp: p.Timestamp},
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},
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}); err != nil {
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slog.Error("encode price response", "error", err)
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}
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return
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}
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}
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http.Error(w, "no price found for the given timestamp", http.StatusNotFound)
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}