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Add support for top-level JSON array in payload

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Detect if leading character in JSON payload is an array bracket.  If
found, decode payload into an interface{} and then save the results into
payload["root"].  References to payload values would need to reference
the leading, "virtual" root node (i.e. "root.0.name").

Fixes #215
This commit is contained in:
Cameron Moore 2020-07-29 09:49:02 -05:00
parent f692da2465
commit 0e90ccb441
5 changed files with 127 additions and 5 deletions
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51
docs/Hook-Examples.md
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@ -425,6 +425,57 @@ Travis sends webhooks as `payload=<JSON_STRING>`, so the payload needs to be par
]
```
## JSON Array Payload
If the JSON payload is an array instead of an object, `webhook` will process the payload and place it into a "root" object.
Therefore, references to payload values must begin with `root.`.
For example, given the following payload (taken from the Sendgrid Event Webhook documentation):
```json
[
{
"email": "example@test.com",
"timestamp": 1513299569,
"smtp-id": "<14c5d75ce93.dfd.64b469@ismtpd-555>",
"event": "processed",
"category": "cat facts",
"sg_event_id": "sg_event_id",
"sg_message_id": "sg_message_id"
},
{
"email": "example@test.com",
"timestamp": 1513299569,
"smtp-id": "<14c5d75ce93.dfd.64b469@ismtpd-555>",
"event": "deferred",
"category": "cat facts",
"sg_event_id": "sg_event_id",
"sg_message_id": "sg_message_id",
"response": "400 try again later",
"attempt": "5"
}
]
```
A reference to the second item in the array would look like this:
```json
[
{
"id": "sendgrid",
"execute-command": "{{ .Hookecho }}",
"trigger-rule": {
"match": {
"type": "value",
"parameter": {
"source": "payload",
"name": "root.1.event"
},
"value": "deferred"
}
}
}
]
```
## XML Payload
Given the following payload: