# AWS and sign\_aws4 request made with HTTP

**URL:** <https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370>\
**Category:** New to Julia\
**Tags:** http, aws\
**Created:** [December 9, 2023, 11:20pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370 "2023-12-09T23:20:57Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 9, 2023, 11:20pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/1 "2023-12-09T23:20:58Z")

</div>

I am trying to autenticate a request to my AWS endpoint using AWS Signature 4, I see there’s a function in AWS.jl called `sign_aws4!`, but I would appreciate a code example of how to use it, because I don’t really understand where to place it…

this is my request:

```julia
function call_endpoint(message)
    resp = HTTP.request(
        "POST",
        ENV["AWS_ENDPOINT"],
        headers,
        body = JSON.json(Dict("inputs" => message, 
        "parameters" => Dict( "max_new_tokens" => 200 )))
    )
    return resp
end

```

I could find any code snippets on google… any help more than welcome!

---

<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 9, 2023, 11:24pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/2 "2023-12-09T23:24:49Z")

</div>

You could try using [`submit_request`](https://github.com/JuliaCloud/AWS.jl/blob/100c30ec942e5e38d4a987dbef6b30c85dda9fbf/src/utilities/request.jl#L87) which will sign it and do some retries and such (but requires you pass a `AWS.Request` input). But why do you need to manually construct the request? Is there a service AWS.jl doesn’t cover already?

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 9, 2023, 11:31pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/3 "2023-12-09T23:31:31Z")

</div>

I am not following, sign\_aws4 signature is `(aws::AbstractAWSConfig, request::Request, time::DateTime)`, I understand this as in I have to pass a request…

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<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 9, 2023, 11:33pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/4 "2023-12-09T23:33:22Z")

</div>

Stepping back a little bit, what are you trying to do? What is the HTTP request for?

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 9, 2023, 11:35pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/5 "2023-12-09T23:35:05Z")

</div>

I am sending a POST request to an endpoint on sagemaker…

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<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 9, 2023, 11:41pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/6 "2023-12-09T23:41:03Z")

</div>

Do any of [these](https://juliacloud.github.io/AWS.jl/dev/services/sagemaker.html) do what you need?

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<div class="post-metadata">

**Author:** ![Palli](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/palli/32/3380_2.png) [@Palli](https://discourse.julialang.org/u/Palli)\
**Post date:** [December 9, 2023, 11:50pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/7 "2023-12-09T23:50:35Z")

</div>

This post was temporarily hidden by the community for possibly being off-topic, unfocused, inappropriate, or spammy.

---

<div class="post-metadata">

**Author:** ![cjdoris](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/cjdoris/32/213133_2.png) [@cjdoris](https://discourse.julialang.org/u/cjdoris)\
**Post date:** [December 10, 2023, 9:22am UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/8 "2023-12-10T09:22:31Z")

</div>

For endpoint inference you want the [SageMaker Runtime](https://juliacloud.github.io/AWS.jl/dev/services/sagemaker_runtime.html) service.

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 10, 2023, 10:54am UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/9 "2023-12-10T10:54:35Z")

</div>

yes, thank you!

I think this is the right one, still the question of signing the call remains, doesn’t it?

```julia
using JSON
using AWS
@service Sagemaker_Runtime
body = JSON.json(Dict("inputs" => "what is Python?", 
"parameters" => Dict( "max_new_tokens" => 200 )))
endpoint = "myurl"
Sagemaker_Runtime.invoke_endpoint(body, endpoint)

```

returns this error

```julia
AWS.AWSExceptions.AWSException: 404 -- AWSException

HTTP.Exceptions.StatusError(404, "POST", "/endpoints/myurl", HTTP.Messages.Response:
"""
HTTP/1.1 404 Not Found
x-amzn-RequestId: a4991672-a474-4882-8626-56e4e35a6206
Date: Sun, 10 Dec 2023 11:03:34 GMT
Content-Length: 29
connection: keep-alive

[Message Body was streamed]""")

<UnknownOperationException/>

```

---

<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 10, 2023, 11:12am UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/10 "2023-12-10T11:12:23Z")

</div>

That function will automatically sign the request, and if it wasn’t signed, you’d get a different error than a 404. So there’s some other issue, maybe your endpoint isn’t correct, or the region isn’t configured in your AWS config. Hard to say without more details.

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 10, 2023, 11:43am UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/11 "2023-12-10T11:43:45Z")

</div>

thank you Eric, I will investigate the issues you mentioned… is the AWS.jl expecting such values stored somewhere in particular? or will it check the AWS CLI values or ENV variables in .profile or .bashrc?

---

<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 10, 2023, 12:14pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/12 "2023-12-10T12:14:03Z")

</div>

Yeah. It is hard to find in the docs, but here is the list of places it checks: [https://github.com/JuliaCloud/AWS.jl/blob/100c30ec942e5e38d4a987dbef6b30c85dda9fbf/src/AWSCredentials.jl#L49-L57](https://github.com/JuliaCloud/AWS.jl/blob/100c30ec942e5e38d4a987dbef6b30c85dda9fbf/src/AWSCredentials.jl#L49-L57)

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 10, 2023, 1:12pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/13 "2023-12-10T13:12:20Z")

</div>

thanks for this, tbh with the credentials I have on .aws/credentials I can successfully connect to my endpoint using Postman.

I still have the same error with AWS.jl, I suspect it doesn’t pick them up… or should I explicitly do something?

---

<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 10, 2023, 1:31pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/14 "2023-12-10T13:31:02Z")

</div>

Can you post the full error? Also, what AWS region are you using?

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 10, 2023, 1:47pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/15 "2023-12-10T13:47:11Z")

</div>

sure of course, I am on eu-west-1

```julia
AWS.AWSExceptions.AWSException: 404 -- AWSException

HTTP.Exceptions.StatusError(404, "POST", "/endpoints/jumpstart-dft-meta-textgeneration-llama-2-13b-f/invocations/invocations", HTTP.Messages.Response:
"""
HTTP/1.1 404 Not Found
x-amzn-RequestId: 7ec3853c-e55b-40cb-9486-f60c4b572940
Date: Sun, 10 Dec 2023 13:16:09 GMT
Content-Length: 29
connection: keep-alive

[Message Body was streamed]""")

<UnknownOperationException/>

Stacktrace:
  [1] (::HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}})(req::HTTP.Messages.Request; proxy::Nothing, socket_type::Type, socket_type_tls::Type, readtimeout::Int64, connect_timeout::Int64, logerrors::Bool, logtag::Nothing, kw::Base.Pairs{Symbol, Union{Nothing, Int64}, Tuple{Symbol, Symbol, Symbol}, NamedTuple{(:iofunction, :decompress, :verbose), Tuple{Nothing, Nothing, Int64}}})
    @ HTTP.ConnectionRequest ~/.julia/packages/HTTP/bDoga/src/clientlayers/ConnectionRequest.jl:144
  [2] (::HTTP.RetryRequest.var"#manageretries#3"{HTTP.RetryRequest.var"#manageretries#1#4"{HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}}}})(req::HTTP.Messages.Request; retry::Bool, retries::Int64, retry_delays::ExponentialBackOff, retry_check::Function, retry_non_idempotent::Bool, kw::Base.Pairs{Symbol, Union{Nothing, Int64}, Tuple{Symbol, Symbol, Symbol}, NamedTuple{(:iofunction, :decompress, :verbose), Tuple{Nothing, Nothing, Int64}}})
    @ HTTP.RetryRequest ~/.julia/packages/HTTP/bDoga/src/clientlayers/RetryRequest.jl:35
  [3] manageretries
    @ ~/.julia/packages/HTTP/bDoga/src/clientlayers/RetryRequest.jl:30 [inlined]
  [4] (::HTTP.CookieRequest.var"#managecookies#4"{HTTP.CookieRequest.var"#managecookies#1#5"{HTTP.RetryRequest.var"#manageretries#3"{HTTP.RetryRequest.var"#manageretries#1#4"{HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}}}}}})(req::HTTP.Messages.Request; cookies::Bool, cookiejar::HTTP.Cookies.CookieJar, kw::Base.Pairs{Symbol, Union{Nothing, Integer}, NTuple{4, Symbol}, NamedTuple{(:iofunction, :decompress, :verbose, :retry), Tuple{Nothing, Nothing, Int64, Bool}}})
    @ HTTP.CookieRequest ~/.julia/packages/HTTP/bDoga/src/clientlayers/CookieRequest.jl:42
  [5] managecookies
    @ ~/.julia/packages/HTTP/bDoga/src/clientlayers/CookieRequest.jl:19 [inlined]
  [6] (::HTTP.HeadersRequest.var"#defaultheaders#2"{HTTP.HeadersRequest.var"#defaultheaders#1#3"{HTTP.CookieRequest.var"#managecookies#4"{HTTP.CookieRequest.var"#managecookies#1#5"{HTTP.RetryRequest.var"#manageretries#3"{HTTP.RetryRequest.var"#manageretries#1#4"{HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}}}}}}}})(req::HTTP.Messages.Request; iofunction::Nothing, decompress::Nothing, basicauth::Bool, detect_content_type::Bool, canonicalize_headers::Bool, kw::Base.Pairs{Symbol, Integer, Tuple{Symbol, Symbol}, NamedTuple{(:verbose, :retry), Tuple{Int64, Bool}}})
    @ HTTP.HeadersRequest ~/.julia/packages/HTTP/bDoga/src/clientlayers/HeadersRequest.jl:71
  [7] defaultheaders
    @ ~/.julia/packages/HTTP/bDoga/src/clientlayers/HeadersRequest.jl:14 [inlined]
  [8] (::HTTP.RedirectRequest.var"#redirects#3"{HTTP.RedirectRequest.var"#redirects#1#4"{HTTP.HeadersRequest.var"#defaultheaders#2"{HTTP.HeadersRequest.var"#defaultheaders#1#3"{HTTP.CookieRequest.var"#managecookies#4"{HTTP.CookieRequest.var"#managecookies#1#5"{HTTP.RetryRequest.var"#manageretries#3"{HTTP.RetryRequest.var"#manageretries#1#4"{HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}}}}}}}}}})(req::HTTP.Messages.Request; redirect::Bool, redirect_limit::Int64, redirect_method::Nothing, forwardheaders::Bool, response_stream::Base.BufferStream, kw::Base.Pairs{Symbol, Integer, Tuple{Symbol, Symbol}, NamedTuple{(:verbose, :retry), Tuple{Int64, Bool}}})
    @ HTTP.RedirectRequest ~/.julia/packages/HTTP/bDoga/src/clientlayers/RedirectRequest.jl:17
  [9] redirects
    @ ~/.julia/packages/HTTP/bDoga/src/clientlayers/RedirectRequest.jl:14 [inlined]
 [10] (::HTTP.MessageRequest.var"#makerequest#3"{HTTP.MessageRequest.var"#makerequest#1#4"{HTTP.RedirectRequest.var"#redirects#3"{HTTP.RedirectRequest.var"#redirects#1#4"{HTTP.HeadersRequest.var"#defaultheaders#2"{HTTP.HeadersRequest.var"#defaultheaders#1#3"{HTTP.CookieRequest.var"#managecookies#4"{HTTP.CookieRequest.var"#managecookies#1#5"{HTTP.RetryRequest.var"#manageretries#3"{HTTP.RetryRequest.var"#manageretries#1#4"{HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}}}}}}}}}}}})(method::String, url::URIs.URI, headers::Vector{Pair{SubString{String}, SubString{String}}}, body::String; copyheaders::Bool, response_stream::Base.BufferStream, http_version::HTTP.Strings.HTTPVersion, verbose::Int64, kw::Base.Pairs{Symbol, Bool, Tuple{Symbol, Symbol}, NamedTuple{(:redirect, :retry), Tuple{Bool, Bool}}})
    @ HTTP.MessageRequest ~/.julia/packages/HTTP/bDoga/src/clientlayers/MessageRequest.jl:35
 [11] makerequest
    @ ~/.julia/packages/HTTP/bDoga/src/clientlayers/MessageRequest.jl:24 [inlined]
 [12] request(stack::HTTP.MessageRequest.var"#makerequest#3"{HTTP.MessageRequest.var"#makerequest#1#4"{HTTP.RedirectRequest.var"#redirects#3"{HTTP.RedirectRequest.var"#redirects#1#4"{HTTP.HeadersRequest.var"#defaultheaders#2"{HTTP.HeadersRequest.var"#defaultheaders#1#3"{HTTP.CookieRequest.var"#managecookies#4"{HTTP.CookieRequest.var"#managecookies#1#5"{HTTP.RetryRequest.var"#manageretries#3"{HTTP.RetryRequest.var"#manageretries#1#4"{HTTP.ConnectionRequest.var"#connections#4"{HTTP.ConnectionRequest.var"#connections#1#5"{HTTP.TimeoutRequest.var"#timeouts#3"{HTTP.TimeoutRequest.var"#timeouts#1#4"{HTTP.ExceptionRequest.var"#exceptions#2"{HTTP.ExceptionRequest.var"#exceptions#1#3"{typeof(HTTP.StreamRequest.streamlayer)}}}}}}}}}}}}}}}}, method::String, url::URIs.URI, h::Vector{Pair{SubString{String}, SubString{String}}}, b::String, q::Nothing; headers::Vector{Pair{SubString{String}, SubString{String}}}, body::String, query::Nothing, kw::Base.Pairs{Symbol, Any, Tuple{Symbol, Symbol, Symbol}, NamedTuple{(:redirect, :retry, :response_stream), Tuple{Bool, Bool, Base.BufferStream}}})
    @ HTTP ~/.julia/packages/HTTP/bDoga/src/HTTP.jl:457
 [13] #request#20
    @ ~/.julia/packages/HTTP/bDoga/src/HTTP.jl:315 [inlined]
 [14] macro expansion
    @ ~/.julia/packages/Mocking/Q17aB/src/mock.jl:29 [inlined]
 [15] (::AWS.var"#48#50"{AWS.Request, OrderedCollections.LittleDict{Symbol, Any, Vector{Symbol}, Vector{Any}}})()
    @ AWS ~/.julia/packages/AWS/SchLh/src/utilities/request.jl:225
 [16] (::Base.var"#90#92"{Base.var"#90#91#93"{AWS.AWSExponentialBackoff, AWS.var"#49#51", AWS.var"#48#50"{AWS.Request, OrderedCollections.LittleDict{Symbol, Any, Vector{Symbol}, Vector{Any}}}}})(; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Base ./error.jl:296
 [17] (::Base.var"#90#92"{Base.var"#90#91#93"{AWS.AWSExponentialBackoff, AWS.var"#49#51", AWS.var"#48#50"{AWS.Request, OrderedCollections.LittleDict{Symbol, Any, Vector{Symbol}, Vector{Any}}}}})()
    @ Base ./error.jl:291
 [18] _http_request(http_backend::AWS.HTTPBackend, request::AWS.Request, response_stream::IOBuffer)
    @ AWS ~/.julia/packages/AWS/SchLh/src/utilities/request.jl:250
 [19] macro expansion
    @ ~/.julia/packages/Mocking/Q17aB/src/mock.jl:29 [inlined]
 [20] (::AWS.var"#41#44"{AWS.AWSConfig, AWS.Request, IOBuffer, Vector{Int64}})()
    @ AWS ~/.julia/packages/AWS/SchLh/src/utilities/request.jl:134
 [21] (::AWS.var"#42#46"{AWS.var"#41#44"{AWS.AWSConfig, AWS.Request, IOBuffer, Vector{Int64}}, IOBuffer})()
    @ AWS ~/.julia/packages/AWS/SchLh/src/utilities/request.jl:149
 [22] (::Base.var"#90#92"{Base.var"#90#91#93"{AWS.AWSExponentialBackoff, AWS.var"#43#47"{AWS.AWSConfig, Vector{String}, Vector{String}, Int64}, AWS.var"#42#46"{AWS.var"#41#44"{AWS.AWSConfig, AWS.Request, IOBuffer, Vector{Int64}}, IOBuffer}}})(; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Base ./error.jl:296
 [23] (::Base.var"#90#92"{Base.var"#90#91#93"{AWS.AWSExponentialBackoff, AWS.var"#43#47"{AWS.AWSConfig, Vector{String}, Vector{String}, Int64}, AWS.var"#42#46"{AWS.var"#41#44"{AWS.AWSConfig, AWS.Request, IOBuffer, Vector{Int64}}, IOBuffer}}})()
    @ Base ./error.jl:291
 [24] submit_request(aws::AWS.AWSConfig, request::AWS.Request; return_headers::Nothing)
    @ AWS ~/.julia/packages/AWS/SchLh/src/utilities/request.jl:200
 [25] (::AWS.RestJSONService)(request_method::String, request_uri::String, args::Dict{String, Any}; aws_config::AWS.AWSConfig, feature_set::AWS.FeatureSet)
    @ AWS ~/.julia/packages/AWS/SchLh/src/AWS.jl:431
 [26] RestJSONService
    @ ~/.julia/packages/AWS/SchLh/src/AWS.jl:402 [inlined]
 [27] invoke_endpoint(Body::String, EndpointName::String, params::Dict{String, String}; aws_config::AWS.AWSConfig)
    @ Main.Sagemaker_Runtime ~/.julia/packages/AWS/SchLh/src/services/sagemaker_runtime.jl:83
 [28] invoke_endpoint(Body::String, EndpointName::String, params::Dict{String, String})
    @ Main.Sagemaker_Runtime ~/.julia/packages/AWS/SchLh/src/services/sagemaker_runtime.jl:77
 [29] top-level scope
    @ /mnt/data/projects/GenieGiano/test.ipynb:1

```

---

<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 10, 2023, 2:05pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/16 "2023-12-10T14:05:39Z")

</div>

If you do

```julia
julia> config = global_aws_config();

julia> config.region
"eu-central-1"

```

does it show your region? If not, try setting the ENV variable `AWS_REGION`.

Then see if you can access any other functions. Like

```julia
@service Sagemaker
Sagemaker.list_apps()

```

to see if you can find your app and if even that simple request errors. If so there is probably a configuration problem.

---

<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 10, 2023, 2:14pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/17 "2023-12-10T14:14:31Z")

</div>

yes if I run those commands I get back my region, and I can get the Sagemaker service

```julia
Sagemaker.list_apps()

OrderedCollections.LittleDict{String, Any, Vector{String}, Vector{Any}} with 1 entry:
  "Apps" => Any[LittleDict{String, Any, Vector{String}, Vector{Any}}("AppName"=…

```

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<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 10, 2023, 2:19pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/18 "2023-12-10T14:19:15Z")

</div>

Ok that’s great! Then the configuration is working. Looking again at your message:

> [@Simone\_Gabbriellini](#):
>
> `/invocations/invocations`

This looks wrong to me. Try removing `invocations` from what you’re passing to the function.

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<div class="post-metadata">

**Author:** ![Simone\_Gabbriellini](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/simone_gabbriellini/32/202218_2.png) [@Simone\_Gabbriellini](https://discourse.julialang.org/u/Simone_Gabbriellini)\
**Post date:** [December 10, 2023, 2:27pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/19 "2023-12-10T14:27:05Z")

</div>

nice spot! still have JSON issue but it looks like it’s talking to the endpoint now!

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<div class="post-metadata">

**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [December 10, 2023, 2:29pm UTC](https://discourse.julialang.org/t/aws-and-sign-aws4-request-made-with-http/107370/20 "2023-12-10T14:29:42Z")

</div>

ok great! I have never used sagemaker so I am not about that part. Maybe start a new topic about this issue, and try to include a minimal example (see also [Please read: make it easier to help you](https://discourse.julialang.org/t/please-read-make-it-easier-to-help-you/14757)).