请提供带有 express 的 seneca 工作示例以公开 REST api

Question

我用过这个：

var seneca = require('seneca')();

seneca.act('role:web',{use:{
   prefix: '/cam',
   pin: {role:'api',type:'*'},
   map:{
   asset: {GET:true,POST:true}      
   }
 }});
seneca.add({role: "api",type: "asset"}, function(args, done) {
done(null, {response: "An example asset"});
});


var express = require('express');
var bodyparser = require('body-parser');
var web = require('seneca-web');
var app = express();
app.use(bodyparser.json());
app.use( web );
app.listen(3000);

当我尝试使用 POSTMAN url 调用 api 时，上面的示例给出了以下错误： http://localhost:3000/cam/asset with post param json as { "role":"api","type":"asset"}

TypeError: 无法读取未定义的属性 'util' 在网络上（C:\node_projects\node_modules\seneca-web\web.js:25:22）在 Layer.handle [作为 handle_request] (C:\node_projects\node_modules\express\lib\router\layer.js:95:5) 在 trim_prefix（C:\node_projects\node_modules\express\lib\router\index.js:312:13）在 C:\node_projects\node_modules\express\lib\router\index.js:280:7 在 Function.process_params（C:\node_projects\node_modules\express\lib\router\index.js:330:12）接下来 (C:\node_projects\node_modules\express\lib\router\index.js:271:10) 在 expressInit (C:\node_projects\node_modules\express\lib\middleware\init.js:33:5) 在 Layer.handle [作为 handle_request] (C:\node_projects\node_modules\express\lib\router\layer.js:95:5) 在 trim_prefix（C:\node_projects\node_modules\express\lib\router\index.js:312:13）在 C:\node_projects\node_modules\express\lib\router\index.js:280:7

并且它还在控制台上打印以下 JSON。与未找到匹配的操作模式相关的内容。

{"err":{},"level":"warn","when":1481878030070} {"notice":"seneca: No matching action pattern found for { use: { prefix: '/cam', pin: { role: 'api', type: '' }, map: { asset: [Object], invoice: [Object] } }, role: 'web' }, and no default result provided (using a default$ property).","code":"act_not_found","err":{"eraro":true,"orig":null,"code":"act_not_found","seneca":真,"package":"seneca","msg":"seneca: No matching action pattern found for { use: { prefix: '/cam', pin: { role: 'api', type: '' }, map: { asset: [Object], invoice: [Object] } }, role: 'web' }, and no default result provided (using a default$ property).","details":{"args":"{ use: { prefix: '/cam', pin: { role: 'api', type: '' }, map: { asset: [Object], invoice: [对象] } }, 角色: 'web' }","plugin":{}},"callpoint":"at handle_inward_break (C:\node_projects\node_modules\seneca\seneca.js:1155:23)"},"actid":"gh3fzeqpdsp0/so5yjiwk3v1l" ,"msg":{"use":{"prefix":"/cam","pin":{"role":"api","type" :""},"map":{"asset":{"GET":true,"POST":true},"invoice":{"GET":真,"POST":真}}},"role":"web","meta$":{"id":"gh3fzeqpdsp0/so5yjiwk3v1l","tx":"so5yjiwk3v1l"}},"meta":{},"listen":false,"transport":{},"kind":"act", "case":"ERR","duration":260,"level":"error","when":1481878030071}

Answer 1

下面是一个工作示例：

'use strict'

 var Seneca = require('seneca')
 var Express = require('express')
 var Web = require('seneca-web')

 var Routes = [{
     prefix: '/api',
     pin: 'role:api,cmd:*',
     map: {
          home: {GET: true}
          }
     }]
 var seneca = Seneca()

 var config = {
     routes: Routes,
     adapter: require('seneca-web-adapter-express'),
     context: Express()
 }

 seneca.client()
.use(Web, config)
.ready(() => {
    var server = seneca.export('web/context')()
    server.listen('4000', () => {
        console.log('server started on: 4000')
    })
})

 seneca.add({role: 'api',cmd:'home'}, function(args, done) {
     done(null, {response:"hey"});
     });

请提供带有 express 的 seneca 工作示例以公开 REST api

Please provide working example of seneca with express to expose REST apis

javascript

express

seneca