From 3a4f58621a62d08798e700bd8dc473f124689eb4 Mon Sep 17 00:00:00 2001
From: Rene Luria <rene@luria.ch>
Date: Tue, 2 Sep 2025 10:31:59 +0200
Subject: [PATCH] doc: add openapi.json

---
 openapi.json | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 openapi.json

diff --git a/openapi.json b/openapi.json
new file mode 100644
index 0000000..2f871a1
--- /dev/null
+++ b/openapi.json
@@ -0,0 +1,115 @@
+{
+  "openapi": "3.0.3",
+  "info": {
+    "title": "No-as-a-Service API",
+    "description": "A lightweight API that returns random rejection or \"no\" reasons. Perfect for any scenario: personal, professional, student life, dev life, or just because.",
+    "version": "1.0.0",
+    "contact": {
+      "name": "herel",
+      "url": "https://gitea.parano.ch/herel/no-as-a-service"
+    }
+  },
+  "servers": [
+    {
+      "url": "https://no.parano.ch",
+      "description": "Production server"
+    }
+  ],
+  "paths": {
+    "/": {
+      "get": {
+        "summary": "Get a random rejection reason",
+        "description": "Returns a randomly selected excuse or rejection reason from a collection of 1000+ universal \"no\" responses.",
+        "operationId": "getRandomReason",
+        "responses": {
+          "200": {
+            "description": "Successful response with a random rejection reason",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ReasonResponse"
+                }
+              }
+            }
+          },
+          "429": {
+            "description": "Rate limit exceeded",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ErrorResponse"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "/health": {
+      "get": {
+        "summary": "Health check endpoint",
+        "description": "Returns the health status of the service for Kubernetes readiness probes.",
+        "operationId": "getHealth",
+        "responses": {
+          "200": {
+            "description": "Service is healthy",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/HealthResponse"
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {
+    "schemas": {
+      "ReasonResponse": {
+        "type": "object",
+        "properties": {
+          "reason": {
+            "type": "string",
+            "description": "A randomly selected rejection reason",
+            "example": "This feels like something Future Me would yell at Present Me for agreeing to."
+          }
+        },
+        "required": ["reason"]
+      },
+      "HealthResponse": {
+        "type": "object",
+        "properties": {
+          "status": {
+            "type": "string",
+            "description": "Health status of the service",
+            "example": "ok"
+          }
+        },
+        "required": ["status"]
+      },
+      "ErrorResponse": {
+        "type": "object",
+        "properties": {
+          "error": {
+            "type": "string",
+            "description": "Error message",
+            "example": "Too many requests, please try again later. (120 reqs/min/IP)"
+          }
+        },
+        "required": ["error"]
+      }
+    }
+  },
+  "tags": [
+    {
+      "name": "Reasons",
+      "description": "Endpoints for getting random rejection reasons"
+    },
+    {
+      "name": "Health",
+      "description": "Health check endpoints"
+    }
+  ]
+}
\ No newline at end of file