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March 6, 2024 07:37
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Slack's Interactive Messages endpoint reports a Content-Type of `application/x-www-form-urlencoded` but responds with something like looks like `payload=%7B%22actions%22%3A%5B%7B%22...`, which is encoded JSON inside the payload parameter, which takes the API Gateway VTL templates for a loop.
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| ## The `substring(8)` returns the input with everything after "payload=" which is the only parameter passed in, | |
| ## everything else is encoded JSON inside that parameter. | |
| #set ($encodedJSON = $input.body.substring(8)) | |
| $util.urlDecode(${encodedJSON}) |
You are my savior! Thanks!
Saved my day. Thanks.
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Thanks a million. I had a body mapping I got from another site that was working for slash commands but wasn't working for interactions. Slack should really just send json