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Angularjs in development: using a service on another port


I'm developing an angularjs client for consuming a RESTful service I wrote in Django. I'm not currently doing any development on the service and don't need to be able to change it conveniently.

I do want to change the angular client conveniently. When I'm developing I want to leave the service running either through a dockerized Nginx server on 127.0.0.1 or on the Django development server on 127.0.0.1:8000, either is fine. By default grunt serves the angular application on 127.0.0.1:9000, meaning calls to my service such as (coffeescript):

return $resource('api/logos/:id')

are looking for 127.0.0.1:9000/api/…, where it won't be found. How do I either strip or change the port number that angular is looking for its services on while developing?

EDIT: Gruntfile as requested:

// Generated on 2015-03-05 using generator-angular 0.11.1
'use strict';

// # Globbing
// for performance reasons we're only matching one level down:
// 'test/spec/{,*/}*.js'
// use this if you want to recursively match all subfolders:
// 'test/spec/**/*.js'

module.exports = function (grunt) {

// Load grunt tasks automatically
require('load-grunt-tasks')(grunt);

// Time how long tasks take. Can help when optimizing build times
require('time-grunt')(grunt);

// Configurable paths for the application
var appConfig = {
    app: require('./bower.json').appPath || 'app',
    dist: 'dist'
};

// Define the configuration for all the tasks
grunt.initConfig({

    // Project settings
    yeoman: appConfig,

    // Watches files for changes and runs tasks based on the changed files
    watch: {
    bower: {
        files: ['bower.json'],
        tasks: ['wiredep']
    },
    coffee: {
        files: ['<%= yeoman.app %>/scripts/{,*/}*.{coffee,litcoffee,coffee.md}'],
        tasks: ['newer:coffee:dist']
    },
    coffeeTest: {
        files: ['test/spec/{,*/}*.{coffee,litcoffee,coffee.md}'],
        tasks: ['newer:coffee:test', 'karma']
    },
    compass: {
        files: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
        tasks: ['compass:server', 'autoprefixer']
    },
    gruntfile: {
        files: ['Gruntfile.js']
    },
    livereload: {
        options: {
        livereload: '<%= connect.options.livereload %>'
        },
        files: [
        '<%= yeoman.app %>/{,*/}*.html',
        '.tmp/styles/{,*/}*.css',
        '.tmp/scripts/{,*/}*.js',
        '<%= yeoman.app %>/images/{,*/}*.{png,jpg,jpeg,gif,webp,svg}'
        ]
    }
    },

    // The actual grunt server settings
    connect: {
    options: {
        port: 9000,
        // Change this to '0.0.0.0' to access the server from outside.
        hostname: '0.0.0.0',
        livereload: 35729
    },
    livereload: {
        options: {
        open: false,
        middleware: function (connect) {
            return [
            connect.static('.tmp'),
            connect().use(
                '/bower_components',
                connect.static('./bower_components')
            ),
            connect().use(
                '/app/styles',
                connect.static('./app/styles')
            ),
            connect.static(appConfig.app)
            ];
        }
        }
    },
    test: {
        options: {
        port: 9001,
        middleware: function (connect) {
            return [
            connect.static('.tmp'),
            connect.static('test'),
            connect().use(
                '/bower_components',
                connect.static('./bower_components')
            ),
            connect.static(appConfig.app)
            ];
        }
        }
    },
    dist: {
        options: {
        open: true,
        base: '<%= yeoman.dist %>'
        }
    }
    },

    // Make sure code styles are up to par and there are no obvious mistakes
    jshint: {
    options: {
        jshintrc: '.jshintrc',
        reporter: require('jshint-stylish')
    },
    all: {
        src: [
        'Gruntfile.js'
        ]
    }
    },

    // Empties folders to start fresh
    clean: {
    dist: {
        files: [{
        dot: true,
        src: [
            '.tmp',
            '<%= yeoman.dist %>/{,*/}*',
            '!<%= yeoman.dist %>/.git{,*/}*'
        ]
        }]
    },
    server: '.tmp'
    },

    // Add vendor prefixed styles
    autoprefixer: {
    options: {
        browsers: ['last 1 version']
    },
    server: {
        options: {
        map: true,
        },
        files: [{
        expand: true,
        cwd: '.tmp/styles/',
        src: '{,*/}*.css',
        dest: '.tmp/styles/'
        }]
    },
    dist: {
        files: [{
        expand: true,
        cwd: '.tmp/styles/',
        src: '{,*/}*.css',
        dest: '.tmp/styles/'
        }]
    }
    },

    // Automatically inject Bower components into the app
    wiredep: {
    app: {
        src: ['<%= yeoman.app %>/index.html'],
        ignorePath:  /\.\.\//
    },
    test: {
        devDependencies: true,
        src: '<%= karma.unit.configFile %>',
        ignorePath:  /\.\.\//,
        fileTypes:{
        coffee: {
            block: /(([\s\t]*)#\s*?bower:\s*?(\S*))(\n|\r|.)*?(#\s*endbower)/gi,
            detect: {
                js: /'(.*\.js)'/gi,
                coffee: /'(.*\.coffee)'/gi
            },
            replace: {
            js: '\'{{filePath}}\'',
            coffee: '\'{{filePath}}\''
            }
        }
        }
    },
    sass: {
        src: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
        ignorePath: /(\.\.\/){1,2}bower_components\//
    }
    },

    // Compiles CoffeeScript to JavaScript
    coffee: {
    options: {
        sourceMap: true,
        sourceRoot: ''
    },
    dist: {
        files: [{
        expand: true,
        cwd: '<%= yeoman.app %>/scripts',
        src: '{,*/}*.coffee',
        dest: '.tmp/scripts',
        ext: '.js'
        }]
    },
    test: {
        files: [{
        expand: true,
        cwd: 'test/spec',
        src: '{,*/}*.coffee',
        dest: '.tmp/spec',
        ext: '.js'
        }]
    }
    },

    // Compiles Sass to CSS and generates necessary files if requested
    compass: {
    options: {
        sassDir: '<%= yeoman.app %>/styles',
        cssDir: '.tmp/styles',
        generatedImagesDir: '.tmp/images/generated',
        imagesDir: '<%= yeoman.app %>/images',
        javascriptsDir: '<%= yeoman.app %>/scripts',
        fontsDir: '<%= yeoman.app %>/styles/fonts',
        importPath: './bower_components',
        httpImagesPath: '/images',
        httpGeneratedImagesPath: '/images/generated',
        httpFontsPath: '/styles/fonts',
        relativeAssets: false,
        assetCacheBuster: false,
        raw: 'Sass::Script::Number.precision = 10\n'
    },
    dist: {
        options: {
        generatedImagesDir: '<%= yeoman.dist %>/images/generated'
        }
    },
    server: {
        options: {
        sourcemap: true
        }
    }
    },

    // Renames files for browser caching purposes
    filerev: {
    dist: {
        src: [
        '<%= yeoman.dist %>/scripts/{,*/}*.js',
        '<%= yeoman.dist %>/styles/{,*/}*.css',
        '<%= yeoman.dist %>/images/{,*/}*.{png,jpg,jpeg,gif,webp,svg}',
        '<%= yeoman.dist %>/styles/fonts/*'
        ]
    }
    },

    // Reads HTML for usemin blocks to enable smart builds that automatically
    // concat, minify and revision files. Creates configurations in memory so
    // additional tasks can operate on them
    useminPrepare: {
    html: '<%= yeoman.app %>/index.html',
    options: {
        dest: '<%= yeoman.dist %>',
        flow: {
        html: {
            steps: {
            js: ['concat', 'uglifyjs'],
            css: ['cssmin']
            },
            post: {}
        }
        }
    }
    },

    // Performs rewrites based on filerev and the useminPrepare configuration
    usemin: {
    html: ['<%= yeoman.dist %>/{,*/}*.html'],
    css: ['<%= yeoman.dist %>/styles/{,*/}*.css'],
    options: {
        assetsDirs: [
        '<%= yeoman.dist %>',
        '<%= yeoman.dist %>/images',
        '<%= yeoman.dist %>/styles'
        ]
    }
    },

    // The following *-min tasks will produce minified files in the dist folder
    // By default, your `index.html`'s <!-- Usemin block --> will take care of
    // minification. These next options are pre-configured if you do not wish
    // to use the Usemin blocks.
    // cssmin: {
    //   dist: {
    //     files: {
    //       '<%= yeoman.dist %>/styles/main.css': [
    //         '.tmp/styles/{,*/}*.css'
    //       ]
    //     }
    //   }
    // },
    // uglify: {
    //   dist: {
    //     files: {
    //       '<%= yeoman.dist %>/scripts/scripts.js': [
    //         '<%= yeoman.dist %>/scripts/scripts.js'
    //       ]
    //     }
    //   }
    // },
    // concat: {
    //   dist: {}
    // },

    imagemin: {
    dist: {
        files: [{
        expand: true,
        cwd: '<%= yeoman.app %>/images',
        src: '{,*/}*.{png,jpg,jpeg,gif}',
        dest: '<%= yeoman.dist %>/images'
        }]
    }
    },

    svgmin: {
    dist: {
        files: [{
        expand: true,
        cwd: '<%= yeoman.app %>/images',
        src: '{,*/}*.svg',
        dest: '<%= yeoman.dist %>/images'
        }]
    }
    },

    htmlmin: {
    dist: {
        options: {
        collapseWhitespace: true,
        conservativeCollapse: true,
        collapseBooleanAttributes: true,
        removeCommentsFromCDATA: true,
        removeOptionalTags: true
        },
        files: [{
        expand: true,
        cwd: '<%= yeoman.dist %>',
        src: ['*.html', 'views/{,*/}*.html'],
        dest: '<%= yeoman.dist %>'
        }]
    }
    },

    // ng-annotate tries to make the code safe for minification automatically
    // by using the Angular long form for dependency injection.
    ngAnnotate: {
    dist: {
        files: [{
        expand: true,
        cwd: '.tmp/concat/scripts',
        src: '*.js',
        dest: '.tmp/concat/scripts'
        }]
    }
    },

    // Replace Google CDN references
    cdnify: {
    dist: {
        html: ['<%= yeoman.dist %>/*.html']
    }
    },

    // Copies remaining files to places other tasks can use
    copy: {
    dist: {
        files: [{
        expand: true,
        dot: true,
        cwd: '<%= yeoman.app %>',
        dest: '<%= yeoman.dist %>',
        src: [
            '*.{ico,png,txt}',
            '.htaccess',
            '*.html',
            'views/{,*/}*.html',
            'images/{,*/}*.{webp}',
            'styles/fonts/{,*/}*.*'
        ]
        }, {
        expand: true,
        cwd: '.tmp/images',
        dest: '<%= yeoman.dist %>/images',
        src: ['generated/*']
        }, {
        expand: true,
        cwd: '.',
        src: 'bower_components/bootstrap-sass-official/assets/fonts/bootstrap/*',
        dest: '<%= yeoman.dist %>'
        }]
    },
    styles: {
        expand: true,
        cwd: '<%= yeoman.app %>/styles',
        dest: '.tmp/styles/',
        src: '{,*/}*.css'
    }
    },

    // Run some tasks in parallel to speed up the build process
    concurrent: {
    server: [
        'coffee:dist',
        'compass:server'
    ],
    test: [
        'coffee',
        'compass'
    ],
    dist: [
        'coffee',
        'compass:dist',
        'imagemin',
        'svgmin'
    ]
    },

    // Test settings
    karma: {
    unit: {
        configFile: 'test/karma.conf.coffee',
        singleRun: true
    }
    }
});


grunt.registerTask('serve', 'Compile then start a connect web server', function (target) {
    if (target === 'dist') {
    return grunt.task.run(['build', 'connect:dist:keepalive']);
    }

    grunt.task.run([
    'clean:server',
    'wiredep',
    'concurrent:server',
    'autoprefixer:server',
    'connect:livereload',
    'watch'
    ]);
});

grunt.registerTask('server', 'DEPRECATED TASK. Use the "serve" task instead', function (target) {
    grunt.log.warn('The `server` task has been deprecated. Use `grunt serve` to start a server.');
    grunt.task.run(['serve:' + target]);
});

grunt.registerTask('test', [
    'clean:server',
    'wiredep',
    'concurrent:test',
    'autoprefixer',
    'connect:test',
    'karma'
]);

grunt.registerTask('build', [
    'clean:dist',
    'wiredep',
    'useminPrepare',
    'concurrent:dist',
    'autoprefixer',
    'concat',
    'ngAnnotate',
    'copy:dist',
    'cdnify',
    'cssmin',
    'uglify',
    'filerev',
    'usemin',
    'htmlmin'
]);

grunt.registerTask('default', [
    'newer:jshint',
    'test',
    'build'
]);
};

Solution

  • A simpler way to do this is to enable CORS on the service. Since your service is using Django you should be able to use the Django CORS headers app.

    Install it with pip, then add corsheaders to your installed apps. Next, add the CORS middleware before Django's common middleware in your settings like so:

    MIDDLEWARE_CLASSES = (
        ...
        'corsheaders.middleware.CorsMiddleware',
        'django.middleware.common.CommonMiddleware',
        ...
    )
    

    Finally, whitelist the port your angular application is on, again in your Django settings, like so:

    CORS_ORIGIN_WHITELIST = (
        'localhost:9000' # for example. Your port may vary.
    )
    

    On the angular side you'll need to give a full path to your services while in development otherwise the port difference will cause a problem.