Resolve non-numeric argument error in mx_api_content for medrxivr

[esloch]

Description

When attempting to download data from the medrxivr API using the mx_api_content function, the following error is encountered:

Error in count/100 : non-numeric argument to binary operator
Calls: mx_api_content
Execution halted

Steps to Reproduce

1. Run the following command in the terminal:

   makim scheduler.download-rxivr --server medrxiv --begin 2024-03-14 --end 2024-05-17 --target /opt/services/es-journals/data/rxivx/medrxiv/downloaded/

2. Alternatively, execute the following R code:

   library(medrxivr)
   preprint_data <- mx_api_content(server = "medrxiv", from_date = "2024-03-14", to_date = "2024-05-17")

Observed Behavior

The command fails with the error message:

Error in count/100 : non-numeric argument to binary operator

Additional Testing

• Direct attempts to fetch data using the medrxivr library in an R console result in the same error.
• URL validation for the API endpoint confirms that the endpoint is functional:

  https://api.biorxiv.org/details/biorxiv/2024-03-21/2024-04-28/45
  

Impact

This error prevents the retrieval of preprint data from the medrxivr API, impacting data processing workflows.

Additional Information

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