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Credential issue and lexical error for invalid character in json text. #42

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RobWiederstein opened this issue Mar 29, 2020 · 6 comments
Open

Credential issue and lexical error for invalid character in json text. #42

RobWiederstein opened this issue Mar 29, 2020 · 6 comments

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@RobWiederstein
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Can't push plot from R using plot_ly::api_create(). Get the following error:

Error: lexical error: invalid char in json text.
                                       <html><head> <meta http-equiv="
                     (right here) ------^

In addition, warnings() produces this console output:

'/Users/robwiederstein/.plotly/.credentials': No such file or directory

These are appearing in spite of me setting environment variables for username and api key. More odd, is that plotly accepted the plot once--not sure why.
@nicolaskruchten
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nicolaskruchten commented Mar 31, 2020 •
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does running Sys.setenv("plotly_domain"="https://chart-studio.plotly.com") first resolve this issue?

@nicolaskruchten
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Updated comment above with correct domain name!

@RobWiederstein
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No, I'm still getting the same error. So I did some more work on it today. Plotly REST API, v2 at https://api.plotly.com/v2/?format=api requires a "platform name and an optional version". It lists the following as examples.

Plotly-Client-Platform: Lisp
Plotly-Client-Platform: Python 0.2
Plotly-Client-Platform: Python 0.2.5
Plotly-Client-Platform: Python 3 0.3.2

I remembered that I updated my version of R. The latest release for R was 2/29/20. So I went back to an old version and this wreaked a different kind of havoc on my code. Now, I'm back to the latest release of R. My code for R is now the following where "p" is a plot rendered with the plotly pkg:

Sys.setenv("USERNAME_PLOTLY" = "<username>")
Sys.setenv("API_KEY_PLOTLY" =  "<api_key>")
Sys.setenv("PLOTLY_DOMAIN"="https://chart-studio.plotly.com")
api_create(p)

Still getting the same error . . .

@RobWiederstein
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Changed authentication to the following code. This was detailed in the plotly package documentation under "sign up" page 61:

# If you already have a username and API key, please create the following # environment variables:
Sys.setenv("plotly_username" = "me")
Sys.setenv("plotly_api_key" = "mykey")
# You can also change the default domain if you have a plotly server. 
Sys.setenv("plotly_domain" = "http://mydomain.com")

However, the original error was still present with a pointer to the <html> code. The message said that there was an "invalid character in json text". The R program code commonly makes assignments with, for example, p <- 10. It was changed to "=". Also, the code relied on the magrittr package which uses "%>%" for piping. Switched it out for "+".

It's working . . . Show the issue as closed!

@nicolaskruchten
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I'm glad it's working for you! I'm confused about what you ended up changing that made it work, though, can you clarify please?

@RobWiederstein
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I thought the fig <- fig %>% layout was somehow being interpreted as an html tag and throwing an error. I was able to push it once to plotly, but haven't been able to repeat it. Argh!

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@nicolaskruchten @RobWiederstein