[R] httr::content without message

[Roy Mendelssohn - NOAA Federal]

Thanks to all that replied.  I had just looked through the httr code and sure enough for a .csv mime time it calls readr::read_csv().  The httr::content docs suggest not using automatic parsing in a package,  rather to determine mime type and parse yourself and Ben's suggestion also works if I do:

junk <- readr::read_csv(r1$content, col_types = cols())

Perfect.  Using httr rather than putting the url in any of the read.csv or read_csv type code allows me greater control if the request fails.

Thanks again,

-Roy

> On Jan 2, 2018, at 9:44 AM, Ben Tupper <btupper at bigelow.org> wrote:
> 
> Ahoy!
> 
> That's a message generated by the readr::read_table() function (or it's friends).  You can suppress it a number of ways, but this should work as httr::content() will pass through arguments, like col_types = cols(), to the file reader.
> 
> junk <- httr::content(r1, col_types = cols())
> 
> See more here...
> 
> https://blog.rstudio.com/2016/08/05/readr-1-0-0/
> 
> 
> Cheers,
> Ben
> 
> 
> 
>> On Jan 2, 2018, at 12:30 PM, Roy Mendelssohn - NOAA Federal <roy.mendelssohn at noaa.gov> wrote:
>> 
>> Hi All:
>> 
>> I am using httr to download files form a service, in this case a .csv file.  When I use httr::content on the result,  I get a message.  Since this will be in a package.  I want to suppress the message,  but haven't figured out how to do so.
>> 
>> The following should reproduce the result:
>> 
>> myURL <- 'https://coastwatch.pfeg.noaa.gov/erddap/griddap/erdMH1sstdmday.csvp?time[0:1:last]'
>> r1 <- httr::GET(myURL)
>> junk <- httr::content(r1)
>> 
>> when the last command is run, you get:
>> 
>> Parsed with column specification:
>> cols(
>>  `time (UTC)` = col_datetime(format = "")
>> )
>> 
>> I want to suppress that output.
>> 
>> Thanks,
>> 
>> -Roy
>> 
>> **********************
>> "The contents of this message do not reflect any position of the U.S. Government or NOAA."
>> **********************
>> Roy Mendelssohn
>> Supervisory Operations Research Analyst
>> NOAA/NMFS
>> Environmental Research Division
>> Southwest Fisheries Science Center
>> ***Note new street address***
>> 110 McAllister Way
>> Santa Cruz, CA 95060
>> Phone: (831)-420-3666
>> Fax: (831) 420-3980
>> e-mail: Roy.Mendelssohn at noaa.gov www: http://www.pfeg.noaa.gov/
>> 
>> "Old age and treachery will overcome youth and skill."
>> "From those who have been given much, much will be expected" 
>> "the arc of the moral universe is long, but it bends toward justice" -MLK Jr.
>> 
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> 
> Ben Tupper
> Bigelow Laboratory for Ocean Sciences
> 60 Bigelow Drive, P.O. Box 380
> East Boothbay, Maine 04544
> http://www.bigelow.org
> 
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> 
> 

**********************
"The contents of this message do not reflect any position of the U.S. Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
***Note new street address***
110 McAllister Way
Santa Cruz, CA 95060
Phone: (831)-420-3666
Fax: (831) 420-3980
e-mail: Roy.Mendelssohn at noaa.gov www: http://www.pfeg.noaa.gov/

"Old age and treachery will overcome youth and skill."
"From those who have been given much, much will be expected" 
"the arc of the moral universe is long, but it bends toward justice" -MLK Jr.