So getting data from an endpoint is pretty easy but most rest APIs require an authentication token in order to verify your request. For a json endpoint, I'll automatically get a PowerShell object (hashtable) that represents the json response. The value returned will be automatically parsed depending on the content type of the response. Pipe the result from az cli to PowerShells ConvertFrom-Json, it gets converted to an array of objects, and then you pipe it to the Select-Object cmdlet to. However, if this parameter is omitted and the request method is POST, Invoke-RestMethod sets the content type to "application/x-www-form-urlencoded". For example, this GET request won't have a content type. This will default to a GET request, and any unsupplied optional parameters are omitted from the request. The simplest call you can make is to just provide the URL. QuickBooks - Parse the JSON of a Customer Balance Detail Report. I usually end up just using Invoke-RestMethod so I'll focus on it. JSON Parsing with Sample Data for a Merchant/Payment Transaction. The most common case I tend to use this method for is querying or posting to a json rest API's. PowerShell 2.0 also provides two functions (ConvertTo-Json and ConvertFrom-Json) for easily converting back and forth between JSON and PowerShell objects. PowerShell objects can be represented using hashtables in a similar way to Javascript objects. The difference between the two is quite small, Invoke-RestMethod simply being a slightly more convenient wrapper around Invoke-WebRequest as it only returns the content, omitting the headers. Now we can query a json endpoint, but what about sending json. NET model you had to work with previously turning a request into a concise one liner similar to curl (Which is also an alias for Invoke-WebRequest in PowerShell). These cmdlets are a huge improvement coming from the. In PowerShell version 3, the cmdlets Invoke-RestMethod and Invoke-WebRequest where introduced. The ConvertFrom-Json cmdlet converts a JavaScript Object Notation (JSON) formatted string to a custom PSCustomObject object that has a property for each. PowerShell makes working with rest API's easy.
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