jsonlite suddenly retunring error: “Failure when receiving data from the peer”

问题

Suddenly, over the weekend, my code is no longer working.

when I run it, I receive the following message:

Error in parse_con(txt, bigint_as_char) : Failure when receiving data from the peer

the code is the following:

raiz      <- "https://olinda.bcb.gov.br/olinda/servico/Expectativas/versao/v1/odata/"
tipo      <- "ExpectativaMercadoMensais?%24format=json&%24select="
indicador <- "Indicador,Data,DataReferencia,Mediana,numeroRespondentes"
restricao <- "&%24orderby=Data%20desc&%24filter=Indicador%20eq%20'IPCA'&%24top=10"

library("jsonlite")
jsonlite::fromJSON(paste0(raiz,tipo,indicador,restricao), simplifyVector = FALSE)

回答1:

There is a problem with the GET function that jsonlite uses to read the website. Use readLines instead.

raiz      <- "https://olinda.bcb.gov.br/olinda/servico/Expectativas/versao/v1/odata/"
tipo      <- "ExpectativaMercadoMensais?%24format=json&%24select="
indicador <- "Indicador,Data,DataReferencia,Mediana,numeroRespondentes"
restricao <- "&%24orderby=Data%20desc&%24filter=Indicador%20eq%20'IPCA'&%24top=10"

library("jsonlite")
web <- readLines(paste0(raiz,tipo,indicador,restricao), warn = FALSE)
df <- jsonlite::fromJSON(web, simplifyVector = FALSE)

I didn't understand your query, but here we have one that works:

web <- readLines("https://olinda.bcb.gov.br/olinda/servico/Expectativas/versao/v1/odata/ExpectativasMercadoInflacao12Meses?$format=json", warn = FALSE)
df <- fromJSON(web)
df$value   

来源：https://stackoverflow.com/questions/51247912/jsonlite-suddenly-retunring-error-failure-when-receiving-data-from-the-peer