PublicFunctions/Get-FMPCashFlowStatementGrowth.ps1

function Get-FMPCashFlowStatementGrowth { 
 

    <#
        .SYNOPSIS
            Retrieves cash flow statement growth data for a specified company using the Financial Modeling Prep API.

        .DESCRIPTION
            The Get-FMPCashFlowStatementGrowth function fetches detailed growth rates for various cash flow statement items
            such as operating cash flow, investing cash flow, financing cash flow, capital expenditures, and other key metrics.
            This helps investors analyze changes in a company's cash flow patterns over time. Users can specify which reporting
            period to retrieve growth data for and limit the number of results. If no API key is provided,
            the function attempts to retrieve it using the Get-FMPCredential function and prompts the user if necessary.

        .PARAMETER Symbol
            Specifies the stock symbol for which to retrieve cash flow statement growth data (e.g., AAPL). This parameter is mandatory.

        .PARAMETER Period
            Specifies the reporting period type. Valid values are "Q1", "Q2", "Q3", "Q4", or "FY". The default value is "FY".

        .PARAMETER Limit
            Specifies the maximum number of growth records to retrieve. The default value is 5.

        .PARAMETER ApiKey
            Specifies your Financial Modeling Prep API key. If omitted, the function attempts to retrieve it using Get-FMPCredential.

        .EXAMPLE
            Get-FMPCashFlowStatementGrowth -Symbol AAPL -Period FY -Limit 5

            This example retrieves the 5 most recent annual cash flow statement growth records for Apple Inc.

        .EXAMPLE
            Get-FMPCashFlowStatementGrowth -Symbol MSFT -Period Q3 -Limit 10

            This example retrieves the 10 most recent Q3 quarterly cash flow statement growth records for Microsoft Corporation.

        .NOTES
            This function utilizes the Financial Modeling Prep API's Cash Flow Statement Growth endpoint.
            For more information, visit: https://financialmodelingprep.com
    #>


    [CmdletBinding()]

    Param (
        [Parameter(Mandatory = $true)]
        [string] $Symbol,

        [Parameter(Mandatory = $false)]
        [ValidateSet("Q1", "Q2", "Q3", "Q4", "FY")]
        [string] $Period = "FY",

        [Parameter(Mandatory = $false)]
        [int] $Limit = 5,

        [Parameter(Mandatory = $false)]
        [string] $ApiKey = (Get-FMPCredential)
    )

    Begin {
        if (-not $ApiKey) {
            $ApiKey = Read-Host "Please enter your Financial Modeling Prep API key"
        }

        $baseUrl = "https://financialmodelingprep.com/stable/cash-flow-statement-growth"
    }

    Process {
        $url = "{0}?symbol={1}&period={2}&limit={3}&apikey={4}" -f $baseUrl, $Symbol, $Period, $Limit, $ApiKey

        $headers = @{
            "Upgrade-Insecure-Requests" = "1"
        }

        try {
            $response = Invoke-RestMethod -Uri $url -Method Get -Headers $headers -ErrorAction Stop
            return $response
        }
        catch {
            throw "Error retrieving cash flow statement growth data: $_"
        }
    }
 
 };