In angular http service How can I catch the status of error

Question

I m reading a book called   Pro Angular JS   However  I have a question about how to catch a status of error   What I coded is     http get dataUrl       success function  data            scope data products   data              error function  error            scope data error error          console log  scope data error status      Undefined              This is the spot that I don t get it                                                      If I code  console log  scope data error status      why does the argument of console log is undefined   In the book  there are sentence   The object passed to the error function defines status and message properties    So I did  scope data error status  Why is it wrong

User · Accepted Answer

Your arguments are incorrect  error doesn t return an object containing status and message  it passed them as separate parameters in the order described below   Taken from the angular docs    data      string Object      The response body transformed with the transform functions   status      number      HTTP status code of the response  headers      function  headerName        Header getter function  config      Object      The configuration object that was used to generate the request   statusText      string      HTTP status text of the response    So you d need to change your code to    http get dataUrl       success function  data            scope data products   data              error function  error  status            scope data error     message  error  status  status           console log  scope data error status             Obviously  you don t have to create an object representing the error  you could just create separate scope properties but the same principle applies

User · Answer

From the official angular documentation     Simple GET request example    http get   someUrl      success function data  status  headers  config           this callback will be called asynchronously        when the response is available         error function data  status  headers  config           called asynchronously if an error occurs        or server returns response with an error status          As you can see first parameter for error callback is data an status is second

User · Answer

Response status comes as second parameter in callback   from docs       Simple GET request example    http get   someUrl      success function data  status  headers  config           this callback will be called asynchronously        when the response is available         error function data  status  headers  config           called asynchronously if an error occurs        or server returns response with an error status

User · Answer

UPDATED  As of angularjs 1 5  promise methods success and error have been deprecated   see this answer   from current docs    http get   someUrl   config  then successCallback  errorCallback    http post   someUrl   data  config  then successCallback  errorCallback       you can use the function s other arguments like so   error function data  status  headers  config        console log data       console log status       see  http docs      Simple GET request example    http get   someUrl      success function data  status  headers  config           this callback will be called asynchronously        when the response is available         error function data  status  headers  config           called asynchronously if an error occurs        or server returns response with an error status

User · Answer

The  http legacy promise methods success and error have been deprecated  Use the standard then method instead  Have a look at the docs https   docs angularjs org api ng service  http  Now the right way to use is      Simple GET request example   http     method   GET     url    someUrl     then function successCallback response           this callback will be called asynchronously        when the response is available      function errorCallback response           called asynchronously if an error occurs        or server returns response with an error status        The response object has these properties    data      string Object      The response body transformed with the transform functions   status      number      HTTP status code of the response   headers      function  headerName        Header getter function   config      Object      The configuration object that was used to generate the request   statusText      string      HTTP status text of the response    A response status code between 200 and 299 is considered a success status and will result in the success callback being called

User · Answer

Since  http get returns a  promise  with the extra convenience methods success and error  which just wrap the result of then  you should be able to use  regardless of your Angular version     http get   someUrl        then function success response            console log  succeeded   response      supposed to have  data  status  headers  config  statusText        function error response            console log  failed   response      supposed to have  data  status  headers  config  statusText            Not strictly an answer to the question  but if you re getting bitten by the  my version of Angular is different than the docs  issue you can always dump all of the arguments  even if you don t know the appropriate method signature    http get   someUrl      success function data  foo  bar        console log arguments      includes data  status  etc including unlisted ones if present         error function baz  foo  bar  idontknow        console log arguments      includes data  status  etc including unlisted ones if present         Then  based on whatever you find  you can  fix  the function arguments to match

[javascript] In angular $http service, How can I catch the "status" of error?

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