Here is not-so-minimal, not-really-self-contained example for angular-translate with systemjs:
npm install jspm
./node_modules/.bin/jspm install github:angular-translate/angular-translate
keep pressing <ENTER>, accepting all the default values
create file test.js
import AngularTranslate from 'angular-translate/angular-translate';
console.log(AngularTranslate);
create file index.html
<!doctype html>
<html>
<head>
<script src="jspm_packages/system.src.js"></script>
<script src="config.js"></script>
<script>
System.import('./test.js');
</script>
</head>
<body>
</body>
</html>
open it in the browser:
Failed to load resource: the server responded with a status of 404 (File not found)
undefined:1 Uncaught (in promise) Error: (SystemJS) XHR error (404 File not found) loading
http://localhost:8035/jspm_packages/github/angular-translate/angular-translate@2.11.1.js(…)
Why that file isn't there? It's supposed to be created by jspm, if you had installed angular-translate
from npm it would have contained
module.exports = require("npm:angular-translate@2.11.1/dist/angular-translate.js");
which is just a redirect from symbolic package name (the name of that .js file) to that package main file, as specified in package.json:
"main": "dist/angular-translate.js",
But angular-translate is from github, there is no dist
there. That's why jspm did not create the redirect file - there is nothing to redirect to.
No problem, just build it from the source we got from github:
cd jspm_packages/github/angular-translate/angular-translate@2.11.1/
npm install
npm run-script build
cd ../../../..
and fix mapping in config.js
:
map: {
"angular-translate/angular-translate": "github:angular-translate/angular-translate@2.11.1/dist/angular-translate",
open index.html
in the browser again:
system.src.js:122 Uncaught (in promise) Error: (SystemJS) angular is not defined(…)
No problem, angular is already installed as angular-translate dependency, just tell systemjs when and how to load it.
add to config.js:
meta: {
"angular-translate/angular-translate": {
"deps": ["angular"]
}
},
map: {
"angular": "github:angular-translate/angular-translate@2.11.1/node_modules/angular/angular",
NOTE: You don't need to specify format
for angular-translate. SystemJS auto-detects it correctly - it could be loaded as either 'amd'
or 'cjs'
, but it will not work as 'global'
. Also, you probably did not start by installing angular-translate, so you already have angular.js file and mapping in place somewhere.
Open index.html in the browser again. It prints in the console:
pascalprecht.translate
Yes angular-translate exports a string - seems to be typical for angular1 modules.
I have no experience with angular.js, so I declare it a success and stop here.
PS Why angular-route worked when you install it from npm, and did not work from github?
When installed from npm, jspm created a file named jspm_packages/npm/angular-route@1.5.8.js
, containing
module.exports = require("npm:angular-route@1.5.8/index.js");
because package.json for angular-route has
"main": "index.js",
which is correct and works for you.
When installed from github, jspm created similar file jspm_packages/github/angular/bower-angular-route@1.5.8.js
, but this time it points to a different file
module.exports = require("github:angular/bower-angular-route@1.5.8/angular-route");
because someone put an override in jspm registry there at https://github.com/jspm/registry/blob/master/package-overrides/github/angular/bower-angular-route%401.3.0.json
because bower.json for bower-angular-route has
"main": "./angular-route.js",
Maybe it's an oversight, maybe it's correct and works for them - I don't know.
TL;DR It's not a good idea to use package manager for installing software, if the software was not packaged properly for that package manager.