How to loop over the redux state data after redux action has completed












0















I have a basic need about redux actions but I don't know how can i solve it.



This is my scenerio;
I have a redux action like as follows and I want to loop over the data after redux action has completed in my statefull component.



export const fetchServiceTypes = () => {
return dispatch => {
dispatch(fetchStStart());
axios.get(GAMMA_CONSTANTS.LINK_SERVICETYPES)
.then(res => {
dispatch(fetchStSuccess(res.data))
})
})
.catch(err => {
dispatch(fetchStFail(err))
})
}
}


In the component, I call the redux action in the componentWillMount function like as follows but I think, because redux action works asynchronously, i couldn't loop over the redux state as soon as it finished



componentWillMount() {
if (this.props.serviceTypes.length === 0)
this.props.onFetchServiceTypes();

this.props.serviceType.forEach(x => {
// TO DO
})
}


Anybody how to solve that?
Thank you










share|improve this question



























    0















    I have a basic need about redux actions but I don't know how can i solve it.



    This is my scenerio;
    I have a redux action like as follows and I want to loop over the data after redux action has completed in my statefull component.



    export const fetchServiceTypes = () => {
    return dispatch => {
    dispatch(fetchStStart());
    axios.get(GAMMA_CONSTANTS.LINK_SERVICETYPES)
    .then(res => {
    dispatch(fetchStSuccess(res.data))
    })
    })
    .catch(err => {
    dispatch(fetchStFail(err))
    })
    }
    }


    In the component, I call the redux action in the componentWillMount function like as follows but I think, because redux action works asynchronously, i couldn't loop over the redux state as soon as it finished



    componentWillMount() {
    if (this.props.serviceTypes.length === 0)
    this.props.onFetchServiceTypes();

    this.props.serviceType.forEach(x => {
    // TO DO
    })
    }


    Anybody how to solve that?
    Thank you










    share|improve this question

























      0












      0








      0








      I have a basic need about redux actions but I don't know how can i solve it.



      This is my scenerio;
      I have a redux action like as follows and I want to loop over the data after redux action has completed in my statefull component.



      export const fetchServiceTypes = () => {
      return dispatch => {
      dispatch(fetchStStart());
      axios.get(GAMMA_CONSTANTS.LINK_SERVICETYPES)
      .then(res => {
      dispatch(fetchStSuccess(res.data))
      })
      })
      .catch(err => {
      dispatch(fetchStFail(err))
      })
      }
      }


      In the component, I call the redux action in the componentWillMount function like as follows but I think, because redux action works asynchronously, i couldn't loop over the redux state as soon as it finished



      componentWillMount() {
      if (this.props.serviceTypes.length === 0)
      this.props.onFetchServiceTypes();

      this.props.serviceType.forEach(x => {
      // TO DO
      })
      }


      Anybody how to solve that?
      Thank you










      share|improve this question














      I have a basic need about redux actions but I don't know how can i solve it.



      This is my scenerio;
      I have a redux action like as follows and I want to loop over the data after redux action has completed in my statefull component.



      export const fetchServiceTypes = () => {
      return dispatch => {
      dispatch(fetchStStart());
      axios.get(GAMMA_CONSTANTS.LINK_SERVICETYPES)
      .then(res => {
      dispatch(fetchStSuccess(res.data))
      })
      })
      .catch(err => {
      dispatch(fetchStFail(err))
      })
      }
      }


      In the component, I call the redux action in the componentWillMount function like as follows but I think, because redux action works asynchronously, i couldn't loop over the redux state as soon as it finished



      componentWillMount() {
      if (this.props.serviceTypes.length === 0)
      this.props.onFetchServiceTypes();

      this.props.serviceType.forEach(x => {
      // TO DO
      })
      }


      Anybody how to solve that?
      Thank you







      reactjs react-redux






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 16 '18 at 7:08









      Cansel MutiCansel Muti

      101213




      101213
























          1 Answer
          1






          active

          oldest

          votes


















          1














          componentDidMount is only triggered once before the component has rendered, and it doesn't care if your data is there or not. You could listen for a change in the state instead. This article explains how the new lifecycle method works.



          Side note: If you are only looking to show the data you can actually loop over it directly in the html and it will be updated whenever the state is updated.






          share|improve this answer























            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53333035%2fhow-to-loop-over-the-redux-state-data-after-redux-action-has-completed%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1














            componentDidMount is only triggered once before the component has rendered, and it doesn't care if your data is there or not. You could listen for a change in the state instead. This article explains how the new lifecycle method works.



            Side note: If you are only looking to show the data you can actually loop over it directly in the html and it will be updated whenever the state is updated.






            share|improve this answer




























              1














              componentDidMount is only triggered once before the component has rendered, and it doesn't care if your data is there or not. You could listen for a change in the state instead. This article explains how the new lifecycle method works.



              Side note: If you are only looking to show the data you can actually loop over it directly in the html and it will be updated whenever the state is updated.






              share|improve this answer


























                1












                1








                1







                componentDidMount is only triggered once before the component has rendered, and it doesn't care if your data is there or not. You could listen for a change in the state instead. This article explains how the new lifecycle method works.



                Side note: If you are only looking to show the data you can actually loop over it directly in the html and it will be updated whenever the state is updated.






                share|improve this answer













                componentDidMount is only triggered once before the component has rendered, and it doesn't care if your data is there or not. You could listen for a change in the state instead. This article explains how the new lifecycle method works.



                Side note: If you are only looking to show the data you can actually loop over it directly in the html and it will be updated whenever the state is updated.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 16 '18 at 8:18









                Kristoffer LundKristoffer Lund

                12919




                12919
































                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53333035%2fhow-to-loop-over-the-redux-state-data-after-redux-action-has-completed%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    Bressuire

                    Vorschmack

                    Quarantine