mount koa-ejs@2 with koa-mount fails

[pasupulaphani]

When mounting another app:

Example code:

var client1 = koa();  
render(client1, {
    root: path.join(__dirname, "view"),
    viewExt: "html",
    cache: false,
    debug: true
  });
client1.context.render = co.wrap(app.context.render);

client1.use(async (ctx, next) => {
    await ctx.render(view, locals);
});

var app = koa();  
app.use(mount("/demo", client1)

Error:

"ctx.render is not a function"

{"name":"ps-search","hostname":"Phani-Pearlshare.local","pid":67479,"level":50,"req":{"method":"GET","url":"/","headers":{"host":"localhost:8080","connection":"keep-alive","pragma":"no-cache","cache-control":"no-cache","upgrade-insecure-requests":"1","user-agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) A
ppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.95 Safari/537.36","accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8","accept-encoding":"gzip, deflate, sdch, br","accept-language":"en-GB,en-US;q=0.8,en;q=0.6","cookie":"DFTT_END_USER_AUTH_TOKEN=derhv5sa32t86pdhkgcrwyvbirss8wk36
wfegi; DFTT_REALTIME_SESSION_TOKEN=sT9byMt5s1I2bILfzjy2jzJC-1gKYmslRc1RFkAptVqwLELpPoC5xUthRbeHXWf6P96Sc49yy50wy0kNQnkKWw.8-1; DFTT_END_USER_ID=10628333; cookieconsent_dismissed=yes; _ga=GA1.1.1305685054.1470246540; driftt_aid=7dc5c5af-5b35-4874-8c16-a92041ab68a2; driftt_wmd=true; DFTT_END_USER_PREV_BOOTSTRAPPED=true
; connect.sid=s%3Ap4MlIDqncrnWj50o1SogZgp3.wSsF%2FSEbxRWp2PIeiXAUg7dsNUS55J5kNtPn47mwgmA"},"remoteAddress":"::1","remotePort":55063},"res":{},"err":{"message":"ctx.render is not a function","name":"TypeError","stack":"TypeError: ctx.render is not a function\n    at _callee$ (/Users/Phani/new_work/ps-search/clients/de
mo/index.js:21:13)\n    at tryCatch (/Users/Phani/new_work/ps-search/node_modules/regenerator-runtime/runtime.js:64:40)\n    at Generator.invoke [as _invoke] (/Users/Phani/new_work/ps-search/node_modules/regenerator-runtime/runtime.js:355:22)\n    at Generator.prototype.(anonymous function) [as next] (/Users/Phani/ne
w_work/ps-search/node_modules/regenerator-runtime/runtime.js:116:21)\n    at step (/Users/Phani/new_work/ps-search/clients/demo/index.js:29:191)\n    at /Users/Phani/new_work/ps-search/clients/demo/index.js:29:437\n    at /Users/Phani/new_work/ps-search/clients/demo/index.js:29:99\n    at /Users/Phani/new_work/ps-sea
rch/clients/demo/index.js:20:1\n    at dispatch (/Users/Phani/new_work/ps-search/node_modules/koa-compose/index.js:44:32)\n    at next (/Users/Phani/new_work/ps-search/node_modules/koa-compose/index.js:45:18)\n    at send.then.done (/Users/Phani/new_work/ps-search/node_modules/koa-static/index.js:43:20)"},"duration":
30,"msg":"  --> GET /demo 500 30ms","time":"2016-12-20T17:24:51.737Z","v":0}

[lbeeon]

I had same problem.

[Runrioter]

Because app.context.render is undefined.
Just delete this line: client1.context.render = co.wrap(app.context.render);
The following statement had assigned to it:

render(client1, {
    root: path.join(__dirname, "view"),
    viewExt: "html",
    cache: false,
    debug: true
});

[tans]

I had the same problem.

I need to set ctx.render manual.

app.use(async (ctx, next) => {
    ctx.render = app.context.render;
    await next();
});

this work for me.

in this issue's solution like below

var client1 = koa();  
render(client1, {
  root: path.join(__dirname, "view"),
  viewExt: "html",
  cache: false,
  debug: true
}); 



client1.use(async (ctx, next) => {
    ctx.render = client1.context.render;
    await next();
});

client1.use(async (ctx, next) => {
    await ctx.render(view, locals);
});
 
app.use(mount("/demo", client1)