From 5be3d127bb47cf8ea00a9203bec856495498c54c Mon Sep 17 00:00:00 2001
From: Maximilian Baum <maximilian.baum@continue.de>
Date: Thu, 2 Apr 2026 14:03:56 +0200
Subject: [PATCH] more math routes

---
 src/routes/api/divide.js     |  14 +++
 src/routes/api/multiply.js   |  14 +++
 src/routes/api/subtract.js   |  14 +++
 src/routes/docs/openapi.json | 195 +++++++++++++++++++++++++++++++++++
 src/server.js                |   6 ++
 5 files changed, 243 insertions(+)
 create mode 100644 src/routes/api/divide.js
 create mode 100644 src/routes/api/multiply.js
 create mode 100644 src/routes/api/subtract.js

diff --git a/src/routes/api/divide.js b/src/routes/api/divide.js
new file mode 100644
index 0000000..104d766
--- /dev/null
+++ b/src/routes/api/divide.js
@@ -0,0 +1,14 @@
+const express = require('express');
+const router = express.Router();
+
+router.post('/', (req, res) => {
+    const { input } = req.body;
+    res.json({ ret: input.a / input.b });
+});
+
+router.get('/:a/:b', (req, res) => {
+    res.json({ ret: Number(req.params.a) / Number(req.params.b) });
+});
+
+module.exports = router;
+
diff --git a/src/routes/api/multiply.js b/src/routes/api/multiply.js
new file mode 100644
index 0000000..bed6c32
--- /dev/null
+++ b/src/routes/api/multiply.js
@@ -0,0 +1,14 @@
+const express = require('express');
+const router = express.Router();
+
+router.post('/', (req, res) => {
+    const { input } = req.body;
+    res.json({ ret: input.a * input.b });
+});
+
+router.get('/:a/:b', (req, res) => {
+    res.json({ ret: Number(req.params.a) * Number(req.params.b) });
+});
+
+module.exports = router;
+
diff --git a/src/routes/api/subtract.js b/src/routes/api/subtract.js
new file mode 100644
index 0000000..aec90d0
--- /dev/null
+++ b/src/routes/api/subtract.js
@@ -0,0 +1,14 @@
+const express = require('express');
+const router = express.Router();
+
+router.post('/', (req, res) => {
+    const { input } = req.body;
+    res.json({ ret: input.a - input.b });
+});
+
+router.get('/:a/:b', (req, res) => {
+    res.json({ ret: Number(req.params.a) - Number(req.params.b) });
+});
+
+module.exports = router;
+
diff --git a/src/routes/docs/openapi.json b/src/routes/docs/openapi.json
index 9090ae9..e074948 100644
--- a/src/routes/docs/openapi.json
+++ b/src/routes/docs/openapi.json
@@ -352,6 +352,201 @@
           }
         }
       }
+    },
+    "/subtract": {
+      "post": {
+        "summary": "Subtracts second number from first",
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "input": {
+                    "type": "object",
+                    "properties": {
+                      "a": {
+                        "type": "number",
+                        "example": 10
+                      },
+                      "b": {
+                        "type": "number",
+                        "example": 5
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Success"
+          }
+        }
+      }
+    },
+    "/subtract/{a}/{b}": {
+      "get": {
+        "summary": "Subtracts second number from first from path parameters",
+        "parameters": [
+          {
+            "name": "a",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            },
+            "example": "10"
+          },
+          {
+            "name": "b",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            },
+            "example": "5"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success"
+          }
+        }
+      }
+    },
+    "/multiply": {
+      "post": {
+        "summary": "Multiplies two numbers",
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "input": {
+                    "type": "object",
+                    "properties": {
+                      "a": {
+                        "type": "number",
+                        "example": 5
+                      },
+                      "b": {
+                        "type": "number",
+                        "example": 10
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Success"
+          }
+        }
+      }
+    },
+    "/multiply/{a}/{b}": {
+      "get": {
+        "summary": "Multiplies two numbers from path parameters",
+        "parameters": [
+          {
+            "name": "a",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            },
+            "example": "5"
+          },
+          {
+            "name": "b",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            },
+            "example": "10"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success"
+          }
+        }
+      }
+    },
+    "/divide": {
+      "post": {
+        "summary": "Divides first number by second",
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "input": {
+                    "type": "object",
+                    "properties": {
+                      "a": {
+                        "type": "number",
+                        "example": 10
+                      },
+                      "b": {
+                        "type": "number",
+                        "example": 2
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Success"
+          }
+        }
+      }
+    },
+    "/divide/{a}/{b}": {
+      "get": {
+        "summary": "Divides first number by second from path parameters",
+        "parameters": [
+          {
+            "name": "a",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            },
+            "example": "10"
+          },
+          {
+            "name": "b",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            },
+            "example": "2"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success"
+          }
+        }
+      }
     }
   }
 }
diff --git a/src/server.js b/src/server.js
index f0317df..97b22ac 100644
--- a/src/server.js
+++ b/src/server.js
@@ -9,6 +9,9 @@ const toStringRoute = require('./routes/api/toString');
 const isNumberRoute = require('./routes/api/isNumber');
 const stringSplitRoute = require('./routes/api/stringSplit');
 const addRoute = require('./routes/api/add');
+const subtractRoute = require('./routes/api/subtract');
+const multiplyRoute = require('./routes/api/multiply');
+const divideRoute = require('./routes/api/divide');
 
 
 const docsRoute = require('./routes/docs/main');
@@ -28,6 +31,9 @@ app.use('/api/toString', toStringRoute);
 app.use('/api/isNumber', isNumberRoute);
 app.use('/api/stringSplit', stringSplitRoute);
 app.use('/api/add', addRoute);
+app.use('/api/subtract', subtractRoute);
+app.use('/api/multiply', multiplyRoute);
+app.use('/api/divide', divideRoute);
 
 
 app.use('/docs', docsRoute);