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Daveyyydave
Frequent Visitor

Custom connector for Box Upload API

Hello!

 

I am running into an issue creating a custom connector that will upload a pdf file to box folder.  I am configuring the custom connector with the BOX Upload API.  I have postman setup properly to upload file but when I import them to custom connector it does not configure properly.   Below is working postman command that uploads file to box.

Daveyyydave_0-1638231290116.png

 

 The BOX Upload API uses a post with the body in form-data and two keys, the attributes key and file key.  The attributes key has the file attribute, like file name, what box folderid to put the file in, etc.  I am having a hard time building this part out in custom connectors.

Daveyyydave_1-1638231384775.png

 

 

Has anybody here have any success or have done any box custom connector using upload api?  Would appreciate some insights, thanks!

1 ACCEPTED SOLUTION

Accepted Solutions
Daveyyydave
Frequent Visitor

Solved!  This is formatting on the API.  Once formatted correctly, box was able to handle request.

View solution in original post

11 REPLIES 11
Daveyyydave
Frequent Visitor

Might be making some advancements...but think multipart section might be some formatting issue?  Errored is NotFound and output was 404.

 

Daveyyydave_0-1638285369073.png

Daveyyydave_1-1638285421872.png

 

 

Daveyyydave
Frequent Visitor

Some more progress, the response is a 400, "API upload did not contain a file part"  So I know its a formatting issue.

 

Daveyyydave_0-1638459374793.png

 

My flow details look like this:

 

Daveyyydave_1-1638459413896.png

 

 

The raw request:

 

{
"host": {
"connectionReferenceName": "shared_box-20upload--",
"operationId": "Uploadfile"
},
"parameters": {
"Content-Type": "multipart/form-data;boundary=WebKitFormBoundary7MA4YWxkTrZu0gW",
"body/$multipart": [
{
"headers/Content-Disposition": "form-data; name=\"attributes\"",
"value": "{\n \"name\": \"test11.pdf\",\n \"parent\": {\n \"id\": \"142982795411\"\n }\n}"
},
{
"headers/Content-Disposition": "form-data; name=\"file\", filename=\"\"",
"value": {
"@odata.type": "#microsoft.graph.fileAttachment",
"id": "AAMkADExNjVhMzg0LWQyMTEtNDNkYi05YWE3LTYwMDk1OGE1YTJmYQBGAAAAAAAbdnwb3G2yR7Pj0aWJn6DTBwBfi9w1M-rwRqySYi6aOKx_AAUvV8t_AABfi9w1M-rwRqySYi6aOKx_AAUzpl0KAAABEgAQACiSHdJ6iRlHqkaX5_xdF3k=",
"lastModifiedDateTime": "2021-12-01T20:58:43+00:00",
"name": "Order_7357678#en-US_Ordered_PacificStandardTime.pdf",
"contentType": "application/pdf",
"size": 102452,
"isInline": false,
"contentBytes": "JVBERi0xLjQ-----etc"
}
}
]
}
}

 

 

 

Daveyyydave
Frequent Visitor

Solved!  This is formatting on the API.  Once formatted correctly, box was able to handle request.

abc4swc
Frequent Visitor

@Daveyyydave What was the correct formatting? Running into same issue.

How did you solve it? Running into same issue.

abc4swc
Frequent Visitor

@Shimoyama we got it to work with this: 

abc4swc_0-1648063635051.png

where "Outputs" in the body is:

binary({"name":"filename","parent":{"id":"folder"}}

Shimoyama
Frequent Visitor

Please tell me all the steps to create the flow.
I still get the error.

abc4swc
Frequent Visitor

First dynamic input is the filename and varfolder is the folder ID.

abc4swc_0-1649162899376.png

The body of the above is:

{

  "grant_type": "client_credentials",

  "client_id": "",

  "client_secret": "",

  "box_subject_type": "enterprise",

  "box_subject_id": "",

  "scope": "root_readwrite"

}

fill in your own client id, client secret and box id.

Then compose using binary of the varBinaryCode.

abc4swc_1-1649163016439.png

Full json above:

{
    "type""object",
    "properties": {
        "access_token": {
            "type""string"
        },
        "expires_in": {
            "type""integer"
        },
        "restricted_to": {
            "type""array"
        },
        "token_type": {
            "type""string"
        }
    }
}
Then the upload step I already sent that starts with this. 
abc4swc_2-1649163166730.png

 

S-Young
Frequent Visitor

@abc4swc is there any chance you could paste the swagger for your connector please?
I'm also struggling to get this going for a custom Box connector, but even after making the suggested changes in this thread, I'm getting the same "code 400" response as you.

S-Young
Frequent Visitor

Managed to solve it.

For anyone else struggling, use the swagger below & then adjust your auth mechanism to suit.

 

swagger: '2.0'
info:
  title: Default title
  description: ''
  version: '1.0'
host: upload.box.com
basePath: /api/2.0
schemes:
  - https
consumes:
  - multipart/form-data
produces: []
paths:
  /files/content:
    post:
      summary: Direct Upload
      description: Direct Upload
      operationId: Direct_Upload
      parameters:
        - name: Content-Type
          in: header
          required: true
          type: string
          default: multipart/form-data; boundary=---MultiPartUploadBoundary
          description: Content-Type
          x-ms-visibility: internal
        - in: formData
          name: attributes
          type: string
          items:
            type: string
          required: true
          description: >-
            An array containing the file name and parent folder id for this
            upload.
        - in: formData
          name: form-data
          required: true
          type: file
      responses:
        default:
          description: default
          schema: {}
definitions: {}
parameters: {}
responses: {}
securityDefinitions:
  oauth2-auth:
    type: oauth2
    flow: accessCode
    authorizationUrl: https://account.box.com/api/oauth2/authorize
    tokenUrl: https://login.windows.net/common/oauth2/authorize
    scopes: {}
security:
  - oauth2-auth: []
tags: []

Then once saved, format the task as follows,

SYoung_0-1674584789804.png

attributes= { "name": "file.ext", "parent":{"id": "targetBoxFolderId"}}

body= the file being uploaded (file content)

form-data= @file.ext, type=file-content-type

Anonymous
Not applicable

Does this flow also work for a pdf file type?

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