Firebase Storage (admin): create reference with downloadURL











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How can I create a reference to a file in Cloud Storage within a Cloud Function while "only" having the downloadURL?










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    How can I create a reference to a file in Cloud Storage within a Cloud Function while "only" having the downloadURL?










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      How can I create a reference to a file in Cloud Storage within a Cloud Function while "only" having the downloadURL?










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      How can I create a reference to a file in Cloud Storage within a Cloud Function while "only" having the downloadURL?







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      asked Nov 22 at 15:36









      ktm125

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          I understand that you want to derive the bucket and file names from a downloadURL.



          If you look at the format of a downloadURL you will find that it is composed as follows:



          https://firebasestorage.googleapis.com/v0/b/<your-project-id>.appspot.com/o/<your-bucket-name>%2F<your-file-name>?alt=media&token=<a-token-string>


          So you just need to use a set of Javascript methods like indexOf(), substring() and/or slice() to extract the bucket and file names from the downloadURL.



          Then you could do something like the following, according to https://cloud.google.com/nodejs/docs/reference/storage/2.0.x/File:



          const {Storage} = require('@google-cloud/storage');
          const storage = new Storage();
          const bucket = storage.bucket('<your-bucket-name>');

          const file = bucket.file('<your-file-name>');





          share|improve this answer





















          • @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
            – Renaud Tarnec
            Nov 25 at 17:52











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          1 Answer
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          active

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          1 Answer
          1






          active

          oldest

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          active

          oldest

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          active

          oldest

          votes








          up vote
          0
          down vote



          accepted










          I understand that you want to derive the bucket and file names from a downloadURL.



          If you look at the format of a downloadURL you will find that it is composed as follows:



          https://firebasestorage.googleapis.com/v0/b/<your-project-id>.appspot.com/o/<your-bucket-name>%2F<your-file-name>?alt=media&token=<a-token-string>


          So you just need to use a set of Javascript methods like indexOf(), substring() and/or slice() to extract the bucket and file names from the downloadURL.



          Then you could do something like the following, according to https://cloud.google.com/nodejs/docs/reference/storage/2.0.x/File:



          const {Storage} = require('@google-cloud/storage');
          const storage = new Storage();
          const bucket = storage.bucket('<your-bucket-name>');

          const file = bucket.file('<your-file-name>');





          share|improve this answer





















          • @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
            – Renaud Tarnec
            Nov 25 at 17:52















          up vote
          0
          down vote



          accepted










          I understand that you want to derive the bucket and file names from a downloadURL.



          If you look at the format of a downloadURL you will find that it is composed as follows:



          https://firebasestorage.googleapis.com/v0/b/<your-project-id>.appspot.com/o/<your-bucket-name>%2F<your-file-name>?alt=media&token=<a-token-string>


          So you just need to use a set of Javascript methods like indexOf(), substring() and/or slice() to extract the bucket and file names from the downloadURL.



          Then you could do something like the following, according to https://cloud.google.com/nodejs/docs/reference/storage/2.0.x/File:



          const {Storage} = require('@google-cloud/storage');
          const storage = new Storage();
          const bucket = storage.bucket('<your-bucket-name>');

          const file = bucket.file('<your-file-name>');





          share|improve this answer





















          • @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
            – Renaud Tarnec
            Nov 25 at 17:52













          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          I understand that you want to derive the bucket and file names from a downloadURL.



          If you look at the format of a downloadURL you will find that it is composed as follows:



          https://firebasestorage.googleapis.com/v0/b/<your-project-id>.appspot.com/o/<your-bucket-name>%2F<your-file-name>?alt=media&token=<a-token-string>


          So you just need to use a set of Javascript methods like indexOf(), substring() and/or slice() to extract the bucket and file names from the downloadURL.



          Then you could do something like the following, according to https://cloud.google.com/nodejs/docs/reference/storage/2.0.x/File:



          const {Storage} = require('@google-cloud/storage');
          const storage = new Storage();
          const bucket = storage.bucket('<your-bucket-name>');

          const file = bucket.file('<your-file-name>');





          share|improve this answer












          I understand that you want to derive the bucket and file names from a downloadURL.



          If you look at the format of a downloadURL you will find that it is composed as follows:



          https://firebasestorage.googleapis.com/v0/b/<your-project-id>.appspot.com/o/<your-bucket-name>%2F<your-file-name>?alt=media&token=<a-token-string>


          So you just need to use a set of Javascript methods like indexOf(), substring() and/or slice() to extract the bucket and file names from the downloadURL.



          Then you could do something like the following, according to https://cloud.google.com/nodejs/docs/reference/storage/2.0.x/File:



          const {Storage} = require('@google-cloud/storage');
          const storage = new Storage();
          const bucket = storage.bucket('<your-bucket-name>');

          const file = bucket.file('<your-file-name>');






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 22 at 15:48









          Renaud Tarnec

          10k21431




          10k21431












          • @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
            – Renaud Tarnec
            Nov 25 at 17:52


















          • @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
            – Renaud Tarnec
            Nov 25 at 17:52
















          @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
          – Renaud Tarnec
          Nov 25 at 17:52




          @ktm125 Hello, you may also upvote my answer, see stackoverflow.com/help/privileges/vote-up Thanks!!
          – Renaud Tarnec
          Nov 25 at 17:52


















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