NodeJS_Copy_Collection

This code was created to copy a entire MongoDB collection via NodeJS.

• Before starting, be sure to change the following variables:

• urlSource

• urlTarget

• dbSource

• dbTarget

• collectionSource

• collectionTarget

• chunks

  • This variable refers to the number of documents to be copied for each connection to the database.
  • You can leave the default value of 100 if desired.
  • You can use a higher or lower number, depending on the performance of your server.

• timeOut

  • This variable refers to the timeout (in milliseconds) between each connection to the database.
  • You can leave the default value of 7000 if desired.
  • You can use a higher or lower number, depending on the performance of your server.
  • You can even replace the line

     setTimeout(copyDocumentsInChunks, timeOut, skip + limit, limit, count, collectionSource);

     with

     copyDocumentsInChunks(skip + limit, limit, count, collectionSource);

     To completely remove the wait between the connections.