Error: argument "body" is missing, with no default - shiny

Question

I am dealing with an issue for several hours, please do not punish me on points. tried pretty much everything was suggested on stack overflow. I use golem library to build up the app, thus please be aware of this aspect. Also, if you want to look on the wider code here is the branch I am working on github:
https://github.com/gabrielburcea/bftb
I put a snippet of the code where the error takes place:
app_server <- function(input, output, session) {
shiny::callModule(mod_tools_server, "tools_path_ui_1")
shiny::callModule(mod_gene_expressions_sign_path_server, "gene_expression_sign_path_ui_1")
shiny::callModule(mod_genomic_server, "genomic_ui_1")
# Your application server logic
}
#' The application User-Interface
#'
#' #param request Internal parameter for `{shiny}`.
#' DO NOT REMOVE.
#' #import shiny
#' #noRd
app_ui <- function(request) {
tagList(
# Leave this function for adding external resources
golem_add_external_resources(),
# Your application UI logic
shinyUI(
navbarPage(
windowTitle = "Page",
title = div(img(src = ".png", height = "30px"), "Toolbox"),
theme = shinythemes::shinytheme("cerulean"),
tabPanel("Toolbox", icon = icon("wrench"),
shinydashboard::dashboardPage(
skin = "black",
header = shinydashboard::dashboardHeader(title = "Toolbox", titleWidth = 300),
shinydashboard::dashboardSidebar(
width = 300 ,
shinydashboard::sidebarMenu(
shinydashboard::menuItem(
"Tools",
tabName = "tools_app",
icon = icon("wrench"),
shinydashboard::menuSubItem(
"Gene Expression/Signature/Pathways",
tabName = "gene_app",
icon = icon("chart-line")
),
shinydashboard::menuSubItem(
"Genomic",
tabName = "genomic_app",
icon = icon("universal-access")
),
)
)
)
),
shinydashboard::dashboardBody(
shinydashboard::tabItems(
shinydashboard::tabItem("tools_app", mod_tools_path_ui("tools_path_ui_1")),
shinydashboard::tabItem("gene_app",mod_gene_expressions_sign_path_ui("gene_expression_sign_path_ui_1")),
shinydashboard::tabItem("genomic_app", mod_genomic_ui("genomic_ui_1"))
}
#' Add external Resources to the Application
#'
#' This function is internally used to add external
#' resources inside the Shiny application.
#'
#' #import shiny
#' #importFrom golem add_resource_path activate_js favicon bundle_resources
#' #noRd
golem_add_external_resources <- function() {
add_resource_path(
"www",
app_sys("app/www")
)
tags$head(
favicon(),
bundle_resources(
path = app_sys("app/www"),
app_title = "bftb"
)
# Add here other external resources
# for example, you can add shinyalert::useShinyalert()
)
}
And I get error such as:
Error: argument "body" is missing, with no default
And with more explanations on the error I get is here:
Error: argument "body" is missing, with no default
Backtrace:
1. bftb::app_ui()
at test-golem-recommended.R:2:2
22. shinydashboard::dashboardPage(...)
23. shinydashboard:::tagAssert(body, type = "div", class = "content-wrapper")

Answer 1

dashboardPage(header, sidebar, body) is missing its body parameter (in your above code dashboardBody isn't called in the right place - note the parenthesis).
Please try the following:
app_server <- function(input, output, session) {
shiny::callModule(mod_tools_server, "tools_path_ui_1")
shiny::callModule(mod_gene_expressions_sign_path_server, "gene_expression_sign_path_ui_1")
shiny::callModule(mod_genomic_server, "genomic_ui_1")
shiny::callModule(mod_epi_server, "epi_ui_1")
shiny::callModule(mod_io_server, "io_ui_1")
shiny::callModule(mod_pharm_server, "pharm_ui_1")
shiny::callModule(mod_cell_server, "cell_ui_1")
shiny::callModule(mod_mouse_server, "mouse_ui_1")
shiny::callModule(mod_hemebase_server, "hemebase_ui_1")
shiny::callModule(mod_multiomics_server, "multiomics_ui_1")
shiny::callModule(mod_other_server, "other_ui_1")
# Your application server logic
}
#' The application User-Interface
#'
#' #param request Internal parameter for `{shiny}`.
#' DO NOT REMOVE.
#' #import shiny
#' #noRd
app_ui <- function(request) {
tagList(
# Leave this function for adding external resources
golem_add_external_resources(),
# Your application UI logic
shinyUI(
navbarPage(
windowTitle = "BFTB Landing Page",
title = div(img(src = "bftb_logo_v8_bare.png", height = "30px"), "AZ Oncology Bioinformatics Toolbox"),
theme = shinythemes::shinytheme("cerulean"),
tabPanel("Toolbox", icon = icon("wrench"),
shinydashboard::dashboardPage(
skin = "black",
header = shinydashboard::dashboardHeader(title = "AZ Oncology Bioinformatics Toolbox", titleWidth = 300),
shinydashboard::dashboardSidebar(
width = 300 ,
shinydashboard::sidebarMenu(
shinydashboard::menuItem(
"Tools",
tabName = "tools_app",
icon = icon("wrench"),
shinydashboard::menuSubItem(
"Gene Expression/Signature/Pathways",
tabName = "gene_app",
icon = icon("chart-line")
),
shinydashboard::menuSubItem(
"Genomic",
tabName = "genomic_app",
icon = icon("universal-access")
),
shinydashboard::menuSubItem(
"Epigenetics",
tabName = "epi_app",
icon = icon("chart-bar")
),
shinydashboard::menuSubItem(
"Immune-oncology",
tabName = "io_app",
icon = icon("heartbeat")
),
shinydashboard::menuSubItem(
"Pharmacology",
tabName = "pharm_app",
icon = icon("plus-square")
),
shinydashboard::menuSubItem(
"Cell line Selection",
tabName = "cell_app",
icon = icon("sellcast")
),
shinydashboard::menuSubItem("Mouse",
tabName = "mouse_app",
icon = icon("paw")),
shinydashboard::menuSubItem(
"Haem Oncology",
tabName = "hemebase_app",
icon = icon("h-square")
),
shinydashboard::menuSubItem("Multiomics",
tabName = "multiomics_app",
icon = icon("list")),
shinydashboard::menuSubItem(
"Other",
tabName = "other_app",
icon = icon("option-horizontal", lib = "glyphicon"))
)
)
),
shinydashboard::dashboardBody(
shinydashboard::tabItems(
shinydashboard::tabItem("tools_app", mod_tools_path_ui("tools_path_ui_1")),
shinydashboard::tabItem("gene_app",mod_gene_expressions_sign_path_ui("gene_expression_sign_path_ui_1")),
shinydashboard::tabItem("genomic_app", mod_genomic_ui("genomic_ui_1")),
shinydashboard::tabItem("epi_app", mod_epi_ui("epi_ui_1")),
shinydashboard::tabItem("io_app", mod_io_ui("io_ui_1")),
shinydashboard::tabItem("pharm_app", mod_pharm_ui("pharm_ui_1")),
shinydashboard::tabItem("cell_app", mod_cell_ui("cell_ui_1")),
shinydashboard::tabItem("mouse_app", mod_mouse_ui("mouse_ui_1")),
shinydashboard::tabItem("hemebase_app", mod_hemebase_ui("hemebase_ui_1")),
shinydashboard::tabItem("multiomics_app", mod_multiomics_ui("multiomics_ui_1")),
shinydashboard::tabItem("other_app", mod_other_ui("other_ui_1"))))
))
)))
}
#' Add external Resources to the Application
#'
#' This function is internally used to add external
#' resources inside the Shiny application.
#'
#' #import shiny
#' #importFrom golem add_resource_path activate_js favicon bundle_resources
#' #noRd
golem_add_external_resources <- function() {
add_resource_path(
"www",
app_sys("app/www")
)
tags$head(
favicon(),
bundle_resources(
path = app_sys("app/www"),
app_title = "bftb"
)
# Add here other external resources
# for example, you can add shinyalert::useShinyalert()
)
}