Dynamic Json variable to feed Invoke-Restmethod - json

Question

I was able to pass the dynamic json object if the object creation code is in single line.
Invoke-RestMethod -ContentType "application/json" -Method Post -Body '{ "name" : "azurefunctionapp2email", "appname": "Applicationnamehere", "requestedBy" : "requestedby", "reqdate" : "requestdate", "status" : "Successfully Deployed", "AppsCount" : "2" }' `
-Uri “https://implementurihere"
Since the dynamic JSON object in real world need be longer, I seperated created with new line and referenced in the above as below. But new line shift causes the json to break. I tried to pipe to ConvertTo-Json function and then found the output to hold '`\r\n' getting introduced:
$body = '{ "name" : "azurefunctionapp2email", `
"appname": "Applicationnamehere", `
"requestedBy" : "requestedby", `
"reqdate" : "requestdate",
"status" : "Successfully Deployed",
"AppsCount" : "2" }' `
Invoke-RestMethod -ContentType "application/json" -Method Post -Body $body `
-Uri “https://implementurihere"
Note: The above works if the $body is single line.
How to approach in such scenarios where we create a dynamic json , long file and feed?

Answer 1

Your example doesn't work because the last line containing a backtick which you have to omit.
You could use a here string to define your JSON so you don't need to seperate each line by a backtick:
$body =
#'
{ "name" : "azurefunctionapp2email",
"appname": "Applicationnamehere",
"requestedBy" : "requestedby",
"reqdate" : "requestdate",
"status" : "Successfully Deployed",
"AppsCount" : "2" }
'#
You could also consider to use a PowerShell hashtable to define your object which will allows you to use variables without the need of a format string:
$bodyObject = #{
name = 'azurefunctionapp2email'
appname = 'Applicationnamehere'
requestedBy = 'requestedby'
reqdate = 'requestdate'
status = 'Successfully Deployed'
AppsCount = '2'
}
$bodyObject | ConvertTo-Json