javascript - 鱼鹰RAML验证错误处理

我正在尝试自定义处理由于RAML规范失败而发送给调用方的响应。目前，我的代码执行以下操作。

const cfg = require("./cfg");
const log = require('./logging');
const RAML = require('osprey');
const startMessage = "My Service started on port " + cfg.SERVER_PORT + " at " + cfg.API_MOUNT_POINT;

// start an express server
const start = x => {
  // server dependencies
  const fs = require('fs'),
  express = require('express'),
  app = express(),
  router = express.Router(),
  bodyParser = require('body-parser'),
  api = require('./api');

  RAML.loadFile(cfg.API_SPEC).then(_raml => {

    app.use(bodyParser.json({ extended: true }));
    // hide the useless "powered by express" header
    app.disable('x-powered-by');
    // RAML validation
    app.use(cfg.API_MOUNT_POINT, _raml);
    app.use(cfg.API_MOUNT_POINT, api);
  })
  .then(v => {
    app.listen(cfg.SERVER_PORT, function() {
        log.info(startMessage);
    });
  })
  .catch(e => log.error(e));
}

效果很好，但验证失败后发送给调用方的响应如下所示。

{
  "errors": [
    {
      "type": "json",
      "dataPath": "redeemtype",
      "keyword": "required",
      "schema": true,
      "message": "Missing required property: redeemtype"
    }
  ],
  "stack": "BadRequestError: Request failed to validate against RAML definition\n    at createValidationError (/Volumes/Devel/dollardine/node_modules/osprey-method-handler/osprey-method-handler.js:735:14)\n    at ospreyJsonBody (/Volumes/Devel/dollardine/node_modules/osprey-method-handler/osprey-method-handler.js:448:21)\n    at handle (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:56:16)\n    at dispatch (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:39:20)\n    at next (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:37:24)\n    at jsonParser (/Volumes/Devel/dollardine/node_modules/body-parser/lib/types/json.js:94:7)\n    at handle (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:56:16)\n    at dispatch (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:39:20)\n    at middleware (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:41:16)\n    at /Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:10:16\n    at ospreyContentType (/Volumes/Devel/dollardine/node_modules/osprey-method-handler/osprey-method-handler.js:325:17)\n    at handle (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:56:16)\n    at dispatch (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:39:20)\n    at next (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:37:24)\n    at ospreyMethodHeader (/Volumes/Devel/dollardine/node_modules/osprey-method-handler/osprey-method-handler.js:262:12)\n    at handle (/Volumes/Devel/dollardine/node_modules/compose-middleware/lib/index.js:56:16)"
}

很好，但是我不想将所有这些信息发送给调用者。我只想在本地登录并发送{“code”:400，“message”:“Invalid input”}

我如何使鱼鹰使我能够处理错误响应？

最佳答案

我找到了自己的问题的答案。万一将来有人卡在这里。

const start = x => {
  // server dependencies
  const fs = require('fs'),
  express = require('express'),
  app = express(),
  router = express.Router(),
  bodyParser = require('body-parser'),
    api = require('./api');

  const ramlConfig = {
    "server": {
      "notFoundHandler": false
    },
    "disableErrorInterception": true
  }

  osprey.loadFile(cfg.API_SPEC, ramlConfig).then(_raml => {

    app.use(bodyParser.json({ extended: true }));
    // hide the useless "powered by express" header
    app.disable('x-powered-by');
    // RAML validation
    app.use(cfg.API_MOUNT_POINT, _raml);
    app.use(customNotFoundHandler);
    app.use(ramlErrorChecker);


    app.use(cfg.API_MOUNT_POINT, api);
    //app.use(ramlErrorChecker);
  })
  .then(v => {
    app.listen(cfg.SERVER_PORT, function() {
        log.info(startMessage);
    });
  })
  .catch(e => log.error(e));
}

const ramlErrorChecker = (err, req, res, next) => {
  if (err) {
    log.error("RAML validation failed. Reason: " + err);
    res.status(400);
    return res.json(buildResponseJSON(400));
  }
  return next();
}

const customNotFoundHandler = (req, res, next) => {
  // Check for existence of the method handler.
  if (req.resourcePath) {
    return next()
  }
  res.status(404);
  return res.json({"message": "The path is not found"});
}

重要的部分是ramlConfig，它有助于进行一些自定义。通过将“disableErrorInterception”设置为true，我们将接管对标准化更好的错误处理，最重要的是隐藏使用RAML的事实。将“notFoundHandler”设置为false意味着，未声明的路由会被优雅地拒绝，而不是随机的html。

关于javascript - 鱼鹰RAML验证错误处理，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/43035782/