凤凰elixir exaws使用minio（上传文件）

Question

我正在尝试使用ExAws库以及minio 。 我尝试上传文件：

filepath
|> S3.Upload.stream_file
|> S3.upload(bucket_name, path)
|> ExAws.request!

我收到一个错误：

[error] #PID<0.1041.0> running Myapp.Endpoint terminated
Server: localhost:4000 (http)
Request: POST /resources/upload
** (exit) an exception was raised:
    ** (MatchError) no match of right hand side value: %{body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<InitiateMultipartUploadResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\"><Bucket>user-1</Bucket><Key>docs/tsetup.0.9.51.tar.xz</Key><UploadId>35e9c8b0-ac34-4411-b39b-790a0104df93</UploadId></InitiateMultipartUploadResult>", headers: [{"Accept-Ranges", "bytes"}, {"Server", "Minio/DEVELOPMENT.GOGET (linux; amd64)"}, {"Vary", "Origin"}, {"X-Amz-Request-Id", "K4O7RNNSRLAMSL26"}, {"Date", "Tue, 11 Oct 2016 20:53:58 GMT"}, {"Content-Type", "text/xml; charset=utf-8"}, {"Transfer-Encoding", "chunked"}], status_code: 200}
        (ex_aws) lib/ex_aws/s3/upload.ex:39: ExAws.S3.Upload.initialize!/2
        (ex_aws) lib/ex_aws/s3/upload.ex:80: ExAws.Operation.ExAws.S3.Upload.perform/2
        (ex_aws) lib/ex_aws.ex:41: ExAws.request!/2
        (Myapp) web/models/resource.ex:68: Myapp.Resource.put_file_to_cloud/1
        (Myapp) web/controllers/resource_controller.ex:59: Myapp.ResourceController.upload/2
        (Myapp) web/controllers/resource_controller.ex:1: Myapp.ResourceController.action/2
        (Myapp) web/controllers/resource_controller.ex:1: Myapp.ResourceController.phoenix_controller_pipeline/2
        (Myapp) lib/Myapp/endpoint.ex:1: Myapp.Endpoint.instrument/4
        (Myapp) lib/phoenix/router.ex:261: Myapp.Router.dispatch/2
        (Myapp) web/router.ex:1: Myapp.Router.do_call/2
        (Myapp) lib/Myapp/endpoint.ex:1: Myapp.Endpoint.phoenix_pipeline/1
        (Myapp) lib/plug/debugger.ex:123: Myapp.Endpoint."call (overridable 3)"/2
        (Myapp) lib/Myapp/endpoint.ex:1: Myapp.Endpoint.call/2
        (plug) lib/plug/adapters/cowboy/handler.ex:15: Plug.Adapters.Cowboy.Handler.upgrade/4
        (cowboy) src/cowboy_protocol.erl:442: :cowboy_protocol.execute/4

我通过响应看到文件上传开始了。 这个迷你的回答答案是不是像预期的那样？ 或问题出在其他方面？

更新：添加sweet_xml后现在又出现了另一个错误：

[error] GenServer #PID<0.593.0> terminating
** (MatchError) no match of right hand side value: nil
    (ex_aws) lib/ex_aws/s3/upload.ex:69: ExAws.S3.Upload.upload_chunk!/3
    lib/flow/materialize.ex:493: anonymous fn/4 in Experimental.Flow.Materialize.mapper/2
    lib/flow/materialize.ex:462: Experimental.Flow.Materialize."-mapper_ops/1-lists^foldl/2-1-"/3
    lib/flow/materialize.ex:462: anonymous fn/5 in Experimental.Flow.Materialize.mapper_ops/1
    lib/flow/map_reducer.ex:57: Experimental.Flow.MapReducer.handle_events/3
    lib/gen_stage.ex:2190: Experimental.GenStage.consumer_dispatch/7
    lib/gen_stage.ex:2313: Experimental.GenStage.take_pc_events/3
    (stdlib) gen_server.erl:601: :gen_server.try_dispatch/4
    (stdlib) gen_server.erl:667: :gen_server.handle_msg/5
    (stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
Last message: {:"$gen_consumer", {#PID<0.592.0>, #Reference<0.0.2.533>}, [{<<255, 216, 255, 224, 0, 16, 74, 70, 73, 70, 0, 1, 1, 1, 0, 72, 0, 72, 0, 0, 255, 219, 0, 67, 0, 2, 1, 1, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 5, 3, 3, 3, 3, 3, 6, ...>>, 1}]}
State: {%{#Reference<0.0.2.533> => nil}, %{consumers: [{#Reference<0.0.2.544>, #Reference<0.0.2.546>}], done: [#Reference<0.0.2.533>], done?: false, trigger: #Function<2.69990182/4 in Experimental.Flow.Window.Global.materialize/4>}, {0, 4}, [], #Function<29.77971684/4 in Experimental.Flow.Materialize.mapper_ops/1>}
[error] Ranch protocol #PID<0.587.0> (:cowboy_protocol) of listener Myapp.Endpoint.HTTP terminated
** (exit) an exception was raised:
    ** (MatchError) no match of right hand side value: nil
        (ex_aws) lib/ex_aws/s3/upload.ex:69: ExAws.S3.Upload.upload_chunk!/3
        lib/flow/materialize.ex:493: anonymous fn/4 in Experimental.Flow.Materialize.mapper/2
        lib/flow/materialize.ex:462: Experimental.Flow.Materialize."-mapper_ops/1-lists^foldl/2-1-"/3
        lib/flow/materialize.ex:462: anonymous fn/5 in Experimental.Flow.Materialize.mapper_ops/1
        lib/flow/map_reducer.ex:57: Experimental.Flow.MapReducer.handle_events/3
        lib/gen_stage.ex:2190: Experimental.GenStage.consumer_dispatch/7
        lib/gen_stage.ex:2313: Experimental.GenStage.take_pc_events/3
        (stdlib) gen_server.erl:601: :gen_server.try_dispatch/4
        (stdlib) gen_server.erl:667: :gen_server.handle_msg/5
        (stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3

与此同时，我看到下载是在wireshark中 ，但在存储文件夹中是空的

我更加关注Minio的响应，我看到有etag：第Frame 1138: 344 bytes on wire (2752 bits), 344 bytes captured (2752 bits) on interface 0 Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 127.0.0.1, Dst: 127.0.0.1 Transmission Control Protocol, Src Port: 9000 (9000), Dst Port: 42324 (42324), Seq: 515, Ack: 1539815, Len: 278 Hypertext Transfer Protocol HTTP/1.1 200 OK\\r\\n Accept-Ranges: bytes\\r\\n Etag: "2501de281894f7a1f79e8e0d6b8e7d85"\\r\\n Server: Minio/DEVELOPMENT.GOGET (linux; amd64)\\r\\n Vary: Origin\\r\\n X-Amz-Request-Id: M81ULLKCXKH0KRXD\\r\\n Date: Fri, 14 Oct 2016 15:00:16 GMT\\r\\n Content-Length: 0\\r\\n Content-Type: text/plain; charset=utf-8\\r\\n \\r\\n [HTTP response 2/2] [Time since request: 0.008850143 seconds] [Prev request in frame: 1016] [Prev response in frame: 1028] [Request in frame: 1032] Frame 1138: 344 bytes on wire (2752 bits), 344 bytes captured (2752 bits) on interface 0 Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 127.0.0.1, Dst: 127.0.0.1 Transmission Control Protocol, Src Port: 9000 (9000), Dst Port: 42324 (42324), Seq: 515, Ack: 1539815, Len: 278 Hypertext Transfer Protocol HTTP/1.1 200 OK\\r\\n Accept-Ranges: bytes\\r\\n Etag: "2501de281894f7a1f79e8e0d6b8e7d85"\\r\\n Server: Minio/DEVELOPMENT.GOGET (linux; amd64)\\r\\n Vary: Origin\\r\\n X-Amz-Request-Id: M81ULLKCXKH0KRXD\\r\\n Date: Fri, 14 Oct 2016 15:00:16 GMT\\r\\n Content-Length: 0\\r\\n Content-Type: text/plain; charset=utf-8\\r\\n \\r\\n [HTTP response 2/2] [Time since request: 0.008850143 seconds] [Prev request in frame: 1016] [Prev response in frame: 1028] [Request in frame: 1032] UPD：问题由ExAws库的作者解决 - https://github.com/CargoSense/ex_aws/issues/253

Answer 1

ExAWS上传期待％{body：％{upload_id：upload_id}}的响应，但您将获取未解析的XML作为正文。 S3需要XML编解码器，因此请确保将XML解析库sweet_xml添加到您的deps中。

HIH