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December 23, 2015 02:49
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An example of how to use request/response interceptors in AngularJS 1.2 for consistent API interactions. This code does two things: 1) Automatic injection of the user auth token in all API requests. 2) Automatic event firing when the user receives an API response indicating a 401 (unauthorised) request.
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| .config ($httpProvider) -> | |
| $httpProvider.interceptors.push ($q, $rootScope, apiUrl, authToken) -> | |
| request: (config) -> | |
| # Intercept API requests and inject the auth token. | |
| config.headers["X-Auth-Token"] = authToken if config.url.indexOf(apiUrl) is 0 and authToken? | |
| config or $q.when config | |
| responseError: (response) -> | |
| # Intercept unauthorised API responses and fire an event. | |
| $rootScope.$broadcast "unauthorisedApiRequest" if response.config.url.indexOf(apiUrl) is 0 and response.status is 401 | |
| $q.reject response |
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