How to change url in long JSON value using powershell?

Question

I have a JSON file :

"scripts":  {
                "lint":  "./node_modules/.bin/eslint ./ --config .eslintrc.json",
                "test:ui:start-local-x-run":  "./node_modules/.bin/protractor ./configs/protractor/local_run.conf.js --disableChecks --feurl http://website.com --beurl http://172.34.34.34:3000 --feadminurl http://website.com/ap/users --db name --env STG"

            }

I need to change --feurl --beurl --feadminurl --db --env using powershell.

I've tried to use the function but it changes full value:

 function Update-JsonParameter($directory, $jsonFile, $property, $subproperty, $value)
{
try
{
write-host "Update $property.$subproperty property in JSON file $directory\$jsonFile"
$jsonFile = "$directory\$jsonFile"
$convertJson = Get-Content -Raw -Path $jsonFile | ConvertFrom-Json
$convertJson.$property.$subproperty = "$value"
$convertJson | ConvertTo-Json | set-content $jsonFile
}
catch
{
write-host "Updating JSON file FAILED!"
throw $Error[0].Exception
}
}

How can I implement it?

Answer 1

Without a function, you could use a hash table to manage the arguments you want to change. Then just use -replace for each of those arguments. You can iterate over a hash table with GetEnumerator() method.

$json = @'
{
"scripts":  {
                "lint":  "./node_modules/.bin/eslint ./ --config .eslintrc.json",
                "test:ui:start-local-x-run":  "./node_modules/.bin/protractor ./configs/protractor/local_run.conf.js --disableChecks --feurl http://website.com --beurl http://172.34.34.34:3000 --feadminurl http://website.com/ap/users --db name --env STG"

            }
}
'@
$ArgsToChange = @{ feurl = 'https://newfeurl.com'; beurl = 'https://newbeurl.com'; feadminurl = 'https://newfeadminurl.com'; db = 'newdb'; env = 'newenv'}
$jo = $json | ConvertFrom-Json

foreach ($arg in $ArgsToChange.GetEnumerator()) {
    $jo.scripts.'test:ui:start-local-x-run' = $jo.scripts.'test:ui:start-local-x-run' -replace "(?<=--$($arg.Key) ).*?(?=\s--|$)",$arg.Value
}

$updatedJSON = $jo | ConvertTo-Json

---

If you always know all of the arguments to pass the target script, then you can still use a hash table to track the arguments, but you can instead build your argument string with its data.

$json = @'
{
"scripts":  {
                "lint":  "./node_modules/.bin/eslint ./ --config .eslintrc.json",
                "test:ui:start-local-x-run":  "./node_modules/.bin/protractor ./configs/protractor/local_run.conf.js --disableChecks --feurl http://website.com --beurl http://172.34.34.34:3000 --feadminurl http://website.com/ap/users --db name --env STG"

            }
}
'@

# Hash table of arguments and values (syntax: --argument value)
$ArgsToChange = [ordered]@{ disableChecks = $null; feurl = 'https://newfeurl.com'; beurl = 'https://newbeurl.com'; feadminurl = 'https://newfeadminurl.com'; db = 'newdb'; env = 'newenv'}
$jo = $json | ConvertFrom-Json

# Iterating over the hash table creating string of arguments
# Expected output string of --argument1 value1 --argument2 value2 for example
$ArgString = ($ArgsToChange.GetEnumerator() |% { "--{0} {1}" -f $_.Key,$_.Value }).Trim() -join ' '

# Grab string before the first --argument
$program = ($jo.scripts.'test:ui:start-local-x-run' -split '--')[0]

# Join program string and new argument string
$jo.scripts.'test:ui:start-local-x-run' = $program + $ArgString

$updatedJSON = $jo | ConvertTo-Json