feat: add custom api examples

custom-api_v2.md

@@ -0,0 +1,110 @@
+# 自定义接口示例
+
+## 谷歌翻译接口
+
+URL
+
+```
+https://translate.googleapis.com/translate_a/single?client=gtx&dj=1&dt=t&ie=UTF-8&q={{text}}&sl=en&tl=zh-CN
+```
+
+Request Hook
+
+```js
+async (args) => {
+  const url = args.url.replace("{{text}}", args.texts[0]);
+  const method = "GET";
+  return { url, method };
+};
+```
+
+Response Hook
+
+```js
+async ({ res }) => {
+  return { translations: [[res.sentences[0].trans]] };
+};
+```
+
+
+## Ollama
+
+* 注意 ollama 启动参数需要添加环境变量 `OLLAMA_ORIGINS=*`
+* 检查环境变量生效命令：`systemctl show ollama | grep OLLAMA_ORIGINS`
+
+URL
+
+```
+http://localhost:11434/v1/chat/completions
+```
+
+Request Hook
+
+```js
+async (args) => {
+  const url = args.url;
+  const method = "POST";
+  const headers = { "Content-type": "application/json" };
+  const body = {
+    model: "gemma3",
+    messages: [
+      {
+        role: "system",
+        content:
+          'Act as a translation API. Output a single raw JSON object only. No extra text or fences.\n\nInput:\n{"targetLanguage":"<lang>","title":"<context>","description":"<context>","segments":[{"id":1,"text":"..."}],"glossary":{"sourceTerm":"targetTerm"},"tone":"<formal|casual>"}\n\nOutput:\n{"translations":[{"id":1,"text":"...","sourceLanguage":"<detected>"}]}\n\nRules:\n1.  Use title/description for context only; do not output them.\n2.  Keep id, order, and count of segments.\n3.  Preserve whitespace, HTML entities, and all HTML-like tags (e.g., <i1>, <a1>). Translate inner text only.\n4.  Highest priority: Follow \'glossary\'. Use value for translation; if value is "", keep the key.\n5.  Do not translate: content in <code>, <pre>, text enclosed in backticks, or placeholders like {1}, {{1}}, [1], [[1]].\n6.  Apply the specified tone to the translation.\n7.  Detect sourceLanguage for each segment.\n8.  Return empty or unchanged inputs as is.\n\nExample:\nInput: {"targetLanguage":"zh-CN","segments":[{"id":1,"text":"A <b>React</b> component."}],"glossary":{"component":"组件","React":""}}\nOutput: {"translations":[{"id":1,"text":"一个<b>React</b>组件","sourceLanguage":"en"}]}\n\nFail-safe: On any error, return {"translations":[]}.',
+      },
+      {
+        role: "user",
+        content: JSON.stringify({
+          targetLanguage: args.to,
+          segments: args.texts.map((text, id) => ({ id, text })),
+          glossary: {},
+        }),
+      },
+    ],
+    temperature: 0,
+    max_tokens: 20480,
+    think: false,
+    stream: false,
+  };
+
+  return { url, body, headers, method };
+};
+```
+
+Response Hook
+
+```js
+async ({ res }) => {
+  const extractJson = (raw) => {
+    const jsonRegex = /({.*}|\[.*\])/s;
+    const match = raw.match(jsonRegex);
+    return match ? match[0] : null;
+  };
+
+  const parseAIRes = (raw) => {
+    if (!raw) return [];
+
+    try {
+      const jsonString = extractJson(raw);
+      if (!jsonString) return [];
+
+      const data = JSON.parse(jsonString);
+      if (Array.isArray(data.translations)) {
+        return data.translations.map((item) => [
+          item?.text ?? "",
+          item?.sourceLanguage ?? "",
+        ]);
+      }
+    } catch (err) {
+      console.log("parseAIRes", err);
+    }
+
+    return [];
+  };
+
+  const translations = parseAIRes(res?.choices?.[0]?.message?.content);
+
+  return { translations };
+};
+```