Writing data to cloud firestore with promises












0















I'm building a timer app that saves timing sessions to cloud firestore. I would like to record each session to the firestore as a record, and then any splits during the timing session as child elements of this session.



const db = firebase.firestore();
const settings = {timestampsInSnapshots: true};
db.settings(settings);
const sessionsRef = db.collection("sessions")
const user = firebase.auth().currentUser;


The first write is initiated in the startStop() function:



startStop() {
const status = this.state.running;

if(!this.state.sessionRef) //first time starting timer, record new database entry
{
console.log("writing session to cloudstore")
const user = firebase.auth().currentUser;

const sessionRef = sessionsRef.add({
start_time: firebase.firestore.FieldValue.serverTimestamp(),
user: user.uid,
goal: this.state.goal,
}).then( () =>{
console.log("Write successful");
console.log(sessionRef)
this.setState({sessionRef: sessionRef});
return sessionRef;
}
);
}
else //need log split in firebase
{
const sessionRef = this.state.sessionRef
console.log(sessionRef.id)
const action = (this.state.running ? "stop":"start");

const splitRef = sessionsRef.doc(sessionRef.id).push({
split_time: firebase.firestore.FieldValue.serverTimestamp(),
action: action
})
}


The problem happens when pressing the split button that calls the stopStop() function after the timer starts running. In this case, the following error:



FirebaseError: Function CollectionReference.doc() requires its first argument to be of type non-empty string, but it was: undefined



I think this must have something to do with the promise in the first write call not being properly resolved, but I haven't figured out how to do this from reading lots of references and documentation.










share|improve this question



























    0















    I'm building a timer app that saves timing sessions to cloud firestore. I would like to record each session to the firestore as a record, and then any splits during the timing session as child elements of this session.



    const db = firebase.firestore();
    const settings = {timestampsInSnapshots: true};
    db.settings(settings);
    const sessionsRef = db.collection("sessions")
    const user = firebase.auth().currentUser;


    The first write is initiated in the startStop() function:



    startStop() {
    const status = this.state.running;

    if(!this.state.sessionRef) //first time starting timer, record new database entry
    {
    console.log("writing session to cloudstore")
    const user = firebase.auth().currentUser;

    const sessionRef = sessionsRef.add({
    start_time: firebase.firestore.FieldValue.serverTimestamp(),
    user: user.uid,
    goal: this.state.goal,
    }).then( () =>{
    console.log("Write successful");
    console.log(sessionRef)
    this.setState({sessionRef: sessionRef});
    return sessionRef;
    }
    );
    }
    else //need log split in firebase
    {
    const sessionRef = this.state.sessionRef
    console.log(sessionRef.id)
    const action = (this.state.running ? "stop":"start");

    const splitRef = sessionsRef.doc(sessionRef.id).push({
    split_time: firebase.firestore.FieldValue.serverTimestamp(),
    action: action
    })
    }


    The problem happens when pressing the split button that calls the stopStop() function after the timer starts running. In this case, the following error:



    FirebaseError: Function CollectionReference.doc() requires its first argument to be of type non-empty string, but it was: undefined



    I think this must have something to do with the promise in the first write call not being properly resolved, but I haven't figured out how to do this from reading lots of references and documentation.










    share|improve this question

























      0












      0








      0








      I'm building a timer app that saves timing sessions to cloud firestore. I would like to record each session to the firestore as a record, and then any splits during the timing session as child elements of this session.



      const db = firebase.firestore();
      const settings = {timestampsInSnapshots: true};
      db.settings(settings);
      const sessionsRef = db.collection("sessions")
      const user = firebase.auth().currentUser;


      The first write is initiated in the startStop() function:



      startStop() {
      const status = this.state.running;

      if(!this.state.sessionRef) //first time starting timer, record new database entry
      {
      console.log("writing session to cloudstore")
      const user = firebase.auth().currentUser;

      const sessionRef = sessionsRef.add({
      start_time: firebase.firestore.FieldValue.serverTimestamp(),
      user: user.uid,
      goal: this.state.goal,
      }).then( () =>{
      console.log("Write successful");
      console.log(sessionRef)
      this.setState({sessionRef: sessionRef});
      return sessionRef;
      }
      );
      }
      else //need log split in firebase
      {
      const sessionRef = this.state.sessionRef
      console.log(sessionRef.id)
      const action = (this.state.running ? "stop":"start");

      const splitRef = sessionsRef.doc(sessionRef.id).push({
      split_time: firebase.firestore.FieldValue.serverTimestamp(),
      action: action
      })
      }


      The problem happens when pressing the split button that calls the stopStop() function after the timer starts running. In this case, the following error:



      FirebaseError: Function CollectionReference.doc() requires its first argument to be of type non-empty string, but it was: undefined



      I think this must have something to do with the promise in the first write call not being properly resolved, but I haven't figured out how to do this from reading lots of references and documentation.










      share|improve this question














      I'm building a timer app that saves timing sessions to cloud firestore. I would like to record each session to the firestore as a record, and then any splits during the timing session as child elements of this session.



      const db = firebase.firestore();
      const settings = {timestampsInSnapshots: true};
      db.settings(settings);
      const sessionsRef = db.collection("sessions")
      const user = firebase.auth().currentUser;


      The first write is initiated in the startStop() function:



      startStop() {
      const status = this.state.running;

      if(!this.state.sessionRef) //first time starting timer, record new database entry
      {
      console.log("writing session to cloudstore")
      const user = firebase.auth().currentUser;

      const sessionRef = sessionsRef.add({
      start_time: firebase.firestore.FieldValue.serverTimestamp(),
      user: user.uid,
      goal: this.state.goal,
      }).then( () =>{
      console.log("Write successful");
      console.log(sessionRef)
      this.setState({sessionRef: sessionRef});
      return sessionRef;
      }
      );
      }
      else //need log split in firebase
      {
      const sessionRef = this.state.sessionRef
      console.log(sessionRef.id)
      const action = (this.state.running ? "stop":"start");

      const splitRef = sessionsRef.doc(sessionRef.id).push({
      split_time: firebase.firestore.FieldValue.serverTimestamp(),
      action: action
      })
      }


      The problem happens when pressing the split button that calls the stopStop() function after the timer starts running. In this case, the following error:



      FirebaseError: Function CollectionReference.doc() requires its first argument to be of type non-empty string, but it was: undefined



      I think this must have something to do with the promise in the first write call not being properly resolved, but I haven't figured out how to do this from reading lots of references and documentation.







      reactjs firebase google-cloud-firestore






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 18 at 23:32









      occam98occam98

      175111




      175111
























          0






          active

          oldest

          votes











          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%2f54262725%2fwriting-data-to-cloud-firestore-with-promises%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          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%2f54262725%2fwriting-data-to-cloud-firestore-with-promises%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

          Homophylophilia

          Updating UILabel text programmatically using a function

          Cloud Functions - OpenCV Videocapture Read method fails for larger files from cloud storage