I’m stuck trying to add a record to Airtable from my .NET app. Reading data works fine but when I try to POST, I keep getting a ‘422 Unprocessable Entity’ error. I think I might be formatting the data wrong or missing something in the header.
Here’s what I’ve tried:
Dim client As New HttpClient()
client.DefaultRequestHeaders.Add("Authorization", "Bearer mySecretKeyHere")
Dim content As New StringContent("{""fields"": {""Column1"": ""Value1"", ""Column2"": ""Value2""}}", Encoding.UTF8, "application/json")
Dim response = Await client.PostAsync("https://api.airtable.com/v0/myBaseId/myTableName", content)
If Not response.IsSuccessStatusCode Then
Console.WriteLine($"Error: {response.StatusCode}")
End If
Can anyone spot what I’m doing wrong? Maybe the JSON isn’t formatted correctly? Or am I missing a crucial header? Any help would be awesome!
I’ve dealt with this exact issue before, and it can be frustrating. One thing that solved it for me was ensuring the JSON was properly escaped. Try using JsonConvert from Newtonsoft.Json to serialize your object instead of manually constructing the JSON string. Here’s a quick example:
Dim fields As New Dictionary(Of String, String)
fields.Add("Column1", "Value1")
fields.Add("Column2", "Value2")
Dim payload As New Dictionary(Of String, Object)
payload.Add("fields", fields)
Dim jsonContent = JsonConvert.SerializeObject(payload)
Dim content As New StringContent(jsonContent, Encoding.UTF8, "application/json")
This approach helps avoid syntax errors in your JSON. Also, make sure you’re using the correct API version in your URL. The current version is ‘v0’, but double-check Airtable’s documentation to ensure this hasn’t changed. If you’re still stuck, try enabling detailed error messages in your Airtable API settings for more informative responses.
hey mia, have u tried adding the ‘Content-Type’ header explicitly? sometimes that helps. also, double-check ur column names in the json - they gotta match exactly with airtable. maybe try printing the full response body to see if airtable gives more details about the error. good luck!
I encountered a similar issue when integrating Airtable with my .NET application. The 422 error often indicates a problem with the request payload. Have you verified that the column names in your JSON exactly match those in your Airtable base, including case sensitivity? Additionally, ensure that the data types align with what Airtable expects for each field. For example, if a column expects a number, sending a string might cause this error.
Another potential issue could be with the API key or base ID. Double-check that these are correct and that you have the necessary permissions to add records to the specified table.
If the problem persists, I’d recommend using a tool like Postman to test the API directly. This can help isolate whether the issue is with your .NET code or the API request itself.