Hey.
In my Roko channel I am sending a POST request to our server.
Is there a way to add params to POST request body (Not the header)?
It can be a single key-value or several of them. or a json object
Thanks,
Your Digital Media Has Never Looked So Good
Re: Add params to POST request body
save to tmp:/ and then roUrlRequest.postFromFile() ?
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- dan_shneider
- Posts: 19
- Joined:
Re: Add params to POST request body
Thanks, but in this case, can you please explain how do I add header params and body params (json) to a request/file?
Re: Add params to POST request body
dan_shneider wrote:Thanks, but in this case, can you please explain how do I add header params and body params (json) to a request/file?
regarding headers and cookies - that's covered in https://sdkdocs.roku.com/display/sdkdoc/ifHttpAgent
re formatting body - no, can't tell you off top of my head - but doing inspecting http in your browser (or Fiddler or packet sniffer) should put you on the right track
Re: Add params to POST request body
To add POST params to the request body, use ifUrlTransfer.AsyncPostFromString(request), where request is a string containing your POST parameters, url-escaped, separated by ampersands. To url-escape a parameter, call ifUrlTransfer.Escape(param).
https://github.com/belltown/
Re: Add params to POST request body
belltown wrote:To add POST params to the request body, use ifUrlTransfer.AsyncPostFromString(request), where request is a string containing your POST parameters, url-escaped, separated by ampersands. To url-escape a parameter, call ifUrlTransfer.Escape(param).
Oh, my bad for glancing past *PostFromString()! (what was i thinking? probably the query string but that's part of the URL)
The non-Async version should work too, right?
Assuming one does not care about the response body (e.g. as often used as a REST action button).
Re: Add params to POST request body
EnTerr wrote:belltown wrote:To add POST params to the request body, use ifUrlTransfer.AsyncPostFromString(request), where request is a string containing your POST parameters, url-escaped, separated by ampersands. To url-escape a parameter, call ifUrlTransfer.Escape(param).
Oh, my bad for glancing past *PostFromString()! (what was i thinking? probably the query string but that's part of the URL)
The non-Async version should work too, right?
Assuming one does not care about the response body (e.g. as often used as a REST action button).
Correct, PostFromString should work too.
https://github.com/belltown/
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- dan_shneider
- Posts: 19
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Re: Add params to POST request body
Thank you all for your replies.
The thing is, I do need Async POST (I am using the data retrieved on the response).
My server expects several values in a json format on the request body.
I am having problems doing so.
I am creating a json string but on the request body is shows as HTML Form URL Encoded: application/x-www-form-urlencoded
This needs to be in format of application/json
stringForRequest = FormatJson(MY_JSON_STRING,1)...
request.AsyncPostFromString(stringForRequest)...
Any tips?
The thing is, I do need Async POST (I am using the data retrieved on the response).
My server expects several values in a json format on the request body.
I am having problems doing so.
I am creating a json string but on the request body is shows as HTML Form URL Encoded: application/x-www-form-urlencoded
This needs to be in format of application/json
stringForRequest = FormatJson(MY_JSON_STRING,1)...
request.AsyncPostFromString(stringForRequest)...
Any tips?
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- dan_shneider
- Posts: 19
- Joined:
Re: Add params to POST request body
Solved:
mRequest.AddHeader("Content-Type", "application/json")
mRequest.AddHeader("Accept", "application/json")
mRequest.AddHeader("Content-Type", "application/json")
mRequest.AddHeader("Accept", "application/json")
Re: Add params to POST request body
could you show the code you wrote for this issue to resolve......because i have been through the same problem...thanks in advance...
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- tim_beynart
- Posts: 227
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Re: Add params to POST request body
Using JSON formatting functions will not work, you have to generate your POST JSON manually using Chr(34) to insert the quotation marks.
Code: Select all
Value1="some value"
Value2="some other value"
post="{"+Chr(34)+"Key1"+Chr(34)+":"+Chr(34)+Value1+Chr(34)+","+Chr(34)+"Key2"+Chr(34)+":"+Chr(34)+Value2+Chr(34)+"}"
If http.AsyncPostFromString(post) Then
event = Wait(timeout, http.GetPort())
If Type(event) = "roUrlEvent" Then
response = event.GetString()
Else If event = invalid Then
? "AsyncPostFromString timeout"
http.AsyncCancel()
Else
? "AsyncPostFromString unknown event", event
End If
End If
if response <> invalid AND response <> ""
json = parseJSON(response)
Re: Add params to POST request body
tim_beynart wrote:Using JSON formatting functions will not work, you have to generate your POST JSON manually using Chr(34) to insert the quotation marks.
Tim, can you be more specific about what is not working for you?
Certainly, you do not have to manually format JSON in the general case.
The only problem I can guess that you are running into is with respect to associative array key case preservation,
which might be an issue if you are assigning fields using a.Key=Value instead of a["Key"]=Value or a.AddReplace("Key", Value).
Code: Select all
Value1="some value"
Value2="some other value"
a={}
a["Key1"]=Value1
a["Key2"]=Value2
? FormatJSON(a)
'==>
{"Key1":"some value","Key2":"some other value"}
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- tim_beynart
- Posts: 227
- Joined:
Re: Add params to POST request body
Tim, can you be more specific about what is not working for you?
Certainly, you do not have to manually format JSON in the general case.
It's been quite some time since I messed with it, but IIRC, my request body was blank if I tried to use an AA converted to JSON using formatJSON. The case is not an issue, I wrote that example off the top of my head. I can try to dig up an example to demonstrate.
Re: Add params to POST request body
tim_beynart wrote:It's been quite some time since I messed with it, but IIRC, my request body was blank if I tried to use an AA converted to JSON using formatJSON. The case is not an issue, I wrote that example off the top of my head. I can try to dig up an example to demonstrate.
As another attempt at psychic debugging, I'm guessing that your call to FormatJSON was failing and returning an empty string.
This doesn't have anything to do with the roUrlTransfer or POST part of your code, but could happen if you had non-POD (plain old data) values in the AA, for example, or something that was not directly supported by JSON.
I would expect that you would see an error message printed in the app debug console in that case.
https://sdkdocs.roku.com/display/sdkdoc ... 0asInteger)asString
Hope that helps.
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