feat: initial FRED API Proxy project

- Go web server using Gin framework - Proxy FRED economic data API - Support series, observations, search, releases endpoints
2026-04-01 06:48:29 +00:00
commit 96711ffb35
10 changed files with 755 additions and 0 deletions
--- a/models/models.go
+++ b/models/models.go
@@ -0,0 +1,105 @@
+package models
+
+type Series struct {
+	ID                      string `json:"id"`
+	RealtimeStart           string `json:"realtime_start"`
+	RealtimeEnd             string `json:"realtime_end"`
+	Title                   string `json:"title"`
+	ObservationStart        string `json:"observation_start"`
+	ObservationEnd          string `json:"observation_end"`
+	Frequency               string `json:"frequency"`
+	FrequencyShort          string `json:"frequency_short"`
+	Units                   string `json:"units"`
+	UnitsShort              string `json:"units_short"`
+	SeasonalAdjustment      string `json:"seasonal_adjustment"`
+	SeasonalAdjustmentShort string `json:"seasonal_adjustment_short"`
+	LastUpdated             string `json:"last_updated"`
+	Popularity              int    `json:"popularity"`
+	Notes                   string `json:"notes,omitempty"`
+}
+
+type SeriesListResponse struct {
+	RealtimeStart string   `json:"realtime_start"`
+	RealtimeEnd   string   `json:"realtime_end"`
+	Seriess       []Series `json:"seriess"`
+}
+
+type Observation struct {
+	RealtimeStart string `json:"realtime_start"`
+	RealtimeEnd   string `json:"realtime_end"`
+	Date          string `json:"date"`
+	Value         string `json:"value"`
+}
+
+type ObservationsResponse struct {
+	RealtimeStart    string        `json:"realtime_start"`
+	RealtimeEnd      string        `json:"realtime_end"`
+	ObservationStart string        `json:"observation_start"`
+	ObservationEnd   string        `json:"observation_end"`
+	Units            string        `json:"units"`
+	OutputType       int           `json:"output_type"`
+	FileType         string        `json:"file_type"`
+	OrderBy          string        `json:"order_by"`
+	SortOrder        string        `json:"sort_order"`
+	Count            int           `json:"count"`
+	Offset           int           `json:"offset"`
+	Limit            int           `json:"limit"`
+	Observations     []Observation `json:"observations"`
+}
+
+type SearchResult struct {
+	ID            string `json:"id"`
+	RealtimeStart string `json:"realtime_start"`
+	RealtimeEnd   string `json:"realtime_end"`
+	Title         string `json:"title"`
+	Frequency     string `json:"frequency"`
+	Units         string `json:"units"`
+}
+
+type SearchResponse struct {
+	RealtimeStart string         `json:"realtime_start"`
+	RealtimeEnd   string         `json:"realtime_end"`
+	Count         int            `json:"count"`
+	Offset        int            `json:"offset"`
+	Limit         int            `json:"limit"`
+	OrderBy       string         `json:"order_by"`
+	SortOrder     string         `json:"sort_order"`
+	Results       []SearchResult `json:"seriess"`
+}
+
+type Release struct {
+	ID            int    `json:"id"`
+	RealtimeStart string `json:"realtime_start"`
+	RealtimeEnd   string `json:"realtime_end"`
+	Link          string `json:"link"`
+	Name          string `json:"name"`
+	PressRelease  bool   `json:"press_release"`
+	Notes         string `json:"notes,omitempty"`
+}
+
+type ReleasesResponse struct {
+	RealtimeStart string    `json:"realtime_start"`
+	RealtimeEnd   string    `json:"realtime_end"`
+	Count         int       `json:"count"`
+	Offset        int       `json:"offset"`
+	Limit         int       `json:"limit"`
+	Releases      []Release `json:"releases"`
+}
+
+type ReleaseDatesResponse struct {
+	RealtimeStart string `json:"realtime_start"`
+	RealtimeEnd   string `json:"realtime_end"`
+	Count         int    `json:"count"`
+	Offset        int    `json:"offset"`
+	Limit         int    `json:"limit"`
+	ReleaseDates  []struct {
+		ReleaseID   int    `json:"release_id"`
+		Date        string `json:"date"`
+		ReleaseName string `json:"release_name"`
+	} `json:"release_dates"`
+}
+
+type ErrorResponse struct {
+	ErrorCode    string `json:"error_code"`
+	ErrorMessage string `json:"error_message"`
+}