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Parse multi-part response #107

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Parse multi-part response#107

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@NiharikaPatel
NiharikaPatel
opened on Sep 15, 2020

I am sending a json and a binary or text file and I need to Parse the response.body to just get the contents of it. Right now the request body looks like this

-----------------------------211044896921589655921082427940
Content-Disposition: form-data; name="file"; filename="hw.txt"
Content-Type: text/plain

Hello World

-----------------------------211044896921589655921082427940
Content-Disposition: form-data; name="document"; filename="blob"
Content-Type: application/json

[object Object],[object Object],[object Object],[object Object]
-----------------------------211044896921589655921082427940--

How do i extract just the "Hello World" part without
-----------------------------211044896921589655921082427940
Content-Disposition: form-data; name="file"; filename="hw.txt"
Content-Type: text/plain

Activity

  1. wookay commented on Sep 15, 2020

    @wookay
    wookay
    on Sep 15, 2020
    Owner

    related https://github.com/wookay/Bukdu.jl/blob/master/src/plugs/ContentParsers.jl

    using Bukdu.Plug.ContentParsers: FormScanner, scan

reqbody = """
-----------------------------211044896921589655921082427940
Content-Disposition: form-data; name="file"; filename="hw.txt"
Content-Type: text/plain

Hello World

-----------------------------211044896921589655921082427940
Content-Disposition: form-data; name="document"; filename="blob"
Content-Type: application/json

[object Object],[object Object],[object Object],[object Object]
-----------------------------211044896921589655921082427940--
"""

scanner = FormScanner(Vector{UInt8}(reqbody), "-----------------------------211044896921589655921082427940")
body_params = scan(scanner)
@info :data String(read(body_params[1][2].data))

  2. NiharikaPatel commented on Sep 16, 2020

    @NiharikaPatel
    NiharikaPatel
    on Sep 16, 2020
    Author

    Great! thank you, however, the "-----------------------------211044896921589655921082427940" changes every time. Is there a generalized way of finding the separator before feeding it in the FormScanner ?

  3. wookay commented on Sep 16, 2020

    @wookay
    wookay
    on Sep 16, 2020
    Owner

    see https://www.w3.org/Protocols/rfc1341/7_2_Multipart.html

  4. NiharikaPatel commented on Sep 16, 2020

    @NiharikaPatel
    NiharikaPatel
    on Sep 16, 2020
    Author

    Thanks! The json part is still as [object, Object]

  5. NiharikaPatel commented on Sep 16, 2020

    @NiharikaPatel
    NiharikaPatel
    on Sep 16, 2020
    Author

    Figured it out, I was sending the json as an object instead of a string from the front end. Thanks for your help!

  6. NiharikaPatel
    closed this as completedon Sep 16, 2020
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