1. <?php
  3. /**
  4. * API Endpoint Initialization - Legacy Project
  5. */
  7. // Define API base URL
  8. define('API_BASE_URL', 'http://legacy.example.com/api/v1');
  10. // Authentication Configuration
  11. define('API_AUTH_METHOD', 'header'); // 'header' or 'cookie'
  12. define('API_AUTH_HEADER_NAME', 'Authorization');
  13. define('API_AUTH_PREFIX', 'Bearer '); // e.g., 'Bearer ' for JWT
  15. // Error Handling Configuration
  16. define('API_ERROR_FORMAT', 'json'); // 'json' or 'text'
  18. // Data Validation Configuration (Example - can be extended)
  19. define('API_REQUIRED_FIELDS', ['id', 'name', 'email']); // Fields required for POST/PUT requests
  21. // Helper function to construct API endpoint URLs
  22. function buildApiUrl($endpoint) {
  23. return API_BASE_URL . $endpoint;
  24. }
  26. // Example: Initialize a GET endpoint for retrieving a resource
  27. /**
  28. * GET /users/{id} - Retrieve a user by ID
  29. * @param int $id User ID
  30. * @return array User data or error message
  31. */
  32. function getUserById(int $id): array {
  33. $url = buildApiUrl('users/{id}');
  34. // Placeholder for database query/API call
  35. $response = ['status' => 'success', 'data' => ['id' => $id, 'name' => 'John Doe']];
  36. return $response;
  37. }
  39. // Example: Initialize a POST endpoint for creating a resource
  40. /**
  41. * POST /users - Create a new user
  42. * @param array $data User data
  43. * @return array User data or error message
  44. */
  45. function createUser(array $data): array {
  46. $url = buildApiUrl('users');
  47. // Placeholder for database insertion/API call
  48. if (!empty($data)) {
  49. $response = ['status' => 'success', 'data' => ['id' => 123, 'name' => $data['name'], 'email' => $data['email']]];
  50. } else {
  51. $response = ['status' => 'error', 'message' => 'Missing required fields'];
  52. }
  53. return $response;
  54. }
  56. // Example: Initialize a PUT endpoint for updating a resource
  57. /**
  58. * PUT /users/{id} - Update a user by ID
  59. * @param int $id User ID
  60. * @param array $data User data
  61. * @return array User data or error message
  62. */
  63. function updateUser(int $id, array $data): array {
  64. $url = buildApiUrl('users/{id}');
  65. // Placeholder for database update/API call
  66. $response = ['status' => 'success', 'data' => ['id' => $id, 'name' => $data['name'], 'email' => $data['email']]];
  67. return $response;
  68. }
  71. // Example: Initialize a DELETE endpoint
  72. /**
  73. * DELETE /users/{id} - Delete a user by ID
  74. * @param int $id User ID
  75. * @return array Success/Error message
  76. */
  77. function deleteUser(int $id): array {
  78. $url = buildApiUrl('users/{id}');
  79. // Placeholder for database deletion/API call
  80. $response = ['status' => 'success', 'message' => 'User deleted successfully'];
  81. return $response;
  82. }
  84. // Example: Initialize a GET endpoint that accepts query parameters
  85. /**
  86. * GET /products?category={category} - Retrieve products by category
  87. * @param string $category Category to filter by
  88. * @return array Product data or error message
  89. */
  90. function getProductsByCategory(string $category): array {
  91. $url = buildApiUrl('products');
  92. $url .= '?category=' . urlencode($category); //URL encode the category
  93. // Placeholder for database query/API call
  94. $response = ['status' => 'success', 'data' => [['id' => 1, 'name' => 'Product 1', 'category' => $category]]];
  95. return $response;
  96. }
  99. ?>

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