Add client package.

client/database.go

@@ -0,0 +1,76 @@
+package client
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+)
+
+// DatabaseCredentials represents the database connection credentials.
+type DatabaseCredentials struct {
+	Host     string `json:"host"`
+	Port     int    `json:"port"`
+	Name     string `json:"name"`
+	User     string `json:"user"`
+	Password string `json:"password"`
+}
+
+// GetDatabaseCredentials retrieves database credentials from the MCIAS server.
+// This method requires the client to be authenticated (have a valid token).
+func (c *Client) GetDatabaseCredentials(ctx context.Context) (*DatabaseCredentials, error) {
+	if !c.IsAuthenticated() {
+		return nil, fmt.Errorf("client is not authenticated, call LoginWithPassword or LoginWithToken first")
+	}
+
+	if c.Username == "" {
+		return nil, fmt.Errorf("username is not set, call LoginWithPassword or LoginWithToken first")
+	}
+
+	// Build the URL with query parameters
+	baseURL := fmt.Sprintf("%s/v1/database/credentials", c.BaseURL)
+	params := url.Values{}
+	params.Add("username", c.Username)
+	requestURL := fmt.Sprintf("%s?%s", baseURL, params.Encode())
+
+	// Create the request
+	req, err := http.NewRequestWithContext(ctx, "GET", requestURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	// Add authorization header
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.Token))
+
+	// Send the request
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	// Read the response body
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	// Check for errors
+	if resp.StatusCode != http.StatusOK {
+		var errResp ErrorResponse
+		if unmarshalErr := json.Unmarshal(body, &errResp); unmarshalErr == nil {
+			return nil, fmt.Errorf("API error: %s (code: %s)", errResp.Error, errResp.ErrorCode)
+		}
+		return nil, fmt.Errorf("API error: %s", resp.Status)
+	}
+
+	// Parse the response
+	var creds DatabaseCredentials
+	if err := json.Unmarshal(body, &creds); err != nil {
+		return nil, fmt.Errorf("failed to parse response: %w", err)
+	}
+
+	return &creds, nil
+}