[Custom handlers] HTTP query and identities are serialized

[anthonychu]

This is the payload sent for an http trigger:

{
  "Url": "http:\/\/localhost:7071\/api\/HttpTrigger?name=anthony",
  "Method": "GET",
  "Query": "{\"name\":\"anthony\"}",
  "Headers": {
    "Cache-Control": [
      "max-age=0"
    ],
    "Connection": [
      "keep-alive"
    ],
    "Accept": [
      "text\/html,application\/xhtml+xml,application\/xml;q=0.9,image\/webp,image\/apng,*\/*;q=0.8,application\/signed-exchange;v=b3;q=0.9"
    ],
    "Accept-Encoding": [
      "gzip, deflate, br"
    ],
    "Accept-Language": [
      "en-CA,en-US;q=0.9,en;q=0.8"
    ],
    "Cookie": [
      "io=qlFSqVVx3njBnla2AAAH"
    ],
    "Host": [
      "localhost:7071"
    ],
    "User-Agent": [
      "Mozilla\/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/79.0.3945.117 Safari\/537.36 Edg\/79.0.309.65"
    ],
    "Upgrade-Insecure-Requests": [
      "1"
    ],
    "Sec-Fetch-User": [
      "?1"
    ],
    "Sec-Fetch-Site": [
      "none"
    ],
    "Sec-Fetch-Mode": [
      "navigate"
    ]
  },
  "Params": [],
  "Identities": "[{\"AuthenticationType\":null,\"IsAuthenticated\":false,\"Actor\":null,\"BootstrapContext\":null,\"Claims\":[],\"Label\":null,\"Name\":null,\"NameClaimType\":\"http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/name\",\"RoleClaimType\":\"http:\/\/schemas.microsoft.com\/ws\/2008\/06\/identity\/claims\/role\"}]"
}

Query and Identities should be objects, not strings.

@pragnagopa @yojagad

[pragnagopa]

@anthonychu - flagging this as breaking as this a minor breaking change. Assuming we are ok with this. Sent a PR.

[anthonychu]

Yep ok with this being breaking as this is needed for consistency. What’s the best way to let customers know?

[pragnagopa]

I have updated release notes as part of the PR. I will also include in a note in the release announcement.