DynamoDB putitem do not work?

[xiuliren]

I am not sure whether I am doing it correctly or not.

strDict=Dict("psd_segid"=>"45")
@show strDict
@show typeof(strDict)
DynamoDB.put_item(AWS_CREDENTIAL; TableName=TABLE_NAME, Item=strDict)

according to the documentation, the item type is indeed Dict{String,String}, but I still get the following error:

strDict = Dict("psd_segid"=>"45")
typeof(strDict) = Dict{String,String}
SerializationException -- Unexpected value type in payload
HTTP.ExceptionRequest.StatusError(400, HTTP.Messages.Response:
"""
HTTP/1.1 400 Bad Request
Server: Server
Date: Wed, 21 Feb 2018 19:55:53 GMT
Content-Type: application/x-amz-json-1.0
Content-Length: 105
Connection: keep-alive
x-amzn-RequestId: OHI4FMSR0F8HVRPPLJ5LTUFREFVV4KQNSO5AEMVJF66Q9ASUAAJG
x-amz-crc32: 2551049119

{"__type":"com.amazon.coral.service#SerializationException","Message":"Unexpected value type in payload"}""")


Stacktrace:
 [1] #request#1(::Array{Any,1}, ::Function, ::Type{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}, ::HTTP.URIs.URI, ::Vararg{Any,N} where N) at /usr/people/jingpeng/.julia/v0.6/HTTP/src/ExceptionRequest.jl:22
 [2] (::HTTP.#kw##request)(::Array{Any,1}, ::HTTP.#request, ::Type{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}, ::HTTP.URIs.URI, ::HTTP.Messages.Request, ::String) at ./<missing>:0
 [3] #request#1(::VersionNumber, ::String, ::Void, ::Void, ::Array{Any,1}, ::Function, ::Type{HTTP.MessageRequest.MessageLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}, ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::String) at /usr/people/jingpeng/.julia/v0.6/HTTP/src/MessageRequest.jl:44
 [4] (::HTTP.#kw##request)(::Array{Any,1}, ::HTTP.#request, ::Type{HTTP.MessageRequest.MessageLayer{HTTP.ExceptionRequest.ExceptionLayer{HTTP.ConnectionRequest.ConnectionPoolLayer{HTTP.StreamRequest.StreamLayer}}}}, ::String, ::HTTP.URIs.URI, ::Array{Pair{SubString{String},SubString{String}},1}, ::String) at ./<missing>:0
 [5] macro expansion at /usr/people/jingpeng/.julia/v0.6/AWSCore/src/http.jl:31 [inlined]
 [6] macro expansion at /usr/people/jingpeng/.julia/v0.6/Retry/src/repeat_try.jl:206 [inlined]
 [7] http_request(::Dict{Symbol,Any}) at /usr/people/jingpeng/.julia/v0.6/AWSCore/src/http.jl:22
 [8] macro expansion at /usr/people/jingpeng/.julia/v0.6/AWSCore/src/AWSCore.jl:418 [inlined]
 [9] macro expansion at /usr/people/jingpeng/.julia/v0.6/Retry/src/repeat_try.jl:206 [inlined]
 [10] do_request(::Dict{Symbol,Any}) at /usr/people/jingpeng/.julia/v0.6/AWSCore/src/AWSCore.jl:396
 [11] #service_json#8(::Array{Any,1}, ::Function, ::Dict{Symbol,Any}) at /usr/people/jingpeng/.julia/v0.6/AWSCore/src/AWSCore.jl:263
 [12] (::AWSCore.#kw##service_json)(::Array{Any,1}, ::AWSCore.#service_json, ::Dict{Symbol,Any}) at ./<missing>:0
 [13] (::AWSSDK.DynamoDB.#kw##put_item)(::Array{Any,1}, ::AWSSDK.DynamoDB.#put_item, ::Dict{Symbol,Any}) at ./<missing>:0
 [14] include_string(::String, ::String) at ./loading.jl:522

[xiuliren]

It turns out that my item type is not correct, I find it out from python documentation!

strDict=Dict("psd_segid"=>Dict("S"=>"45"))

[samoconnor]

The example in the the julia documentation also has the "S" =>

[
    "Item" => [
        "AlbumTitle" => [
            "S" => "Somewhat Famous"
        ],
        "Artist" => [
            "S" => "No One You Know"
        ],
        "SongTitle" => [
            "S" => "Call Me Today"
        ]
    ],
    "ReturnConsumedCapacity" => "TOTAL",
    "TableName" => "Music"
]

... and the JSON API definition has the detail of that: https://github.com/aws/aws-sdk-js/blob/master/apis/dynamodb-2012-08-10.normal.json#L508

It seems that at this point the JSON spec defines the argument type as "map", and in my doc generator I incorrectly document all "map" items as Dict{String,String}.

It shouldn't be too difficult to update the doc generator.

Thanks for trying this out and reporting the problems!!