Chilkat Examples

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(PureBasic) Create a Temporary Public Link to a DropBox File

Get a temporary link to stream content of a file. This link will expire in four hours and afterwards you will get 410 Gone.

For more information, see https://www.dropbox.com/developers/documentation/http/documentation#files-get_temporary_link

Chilkat PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkHttpResponse.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkJsonObject.pb"

Procedure ChilkatExample()

    ; This example assumes the Chilkat API to have been previously unlocked.
    ; See Global Unlock Sample for sample code.

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i

    ; Implements the following CURL command:

    ; curl -X POST https://api.dropboxapi.com/2/files/get_temporary_link \
    ;     --header "Authorization: Bearer DROPBOX_ACCESS_TOKEN" \
    ;     --header "Content-Type: application/json" \
    ;     --data "{\"path\": \"/video.mp4\"}"

    ; Use this online tool to generate code from sample JSON:
    ; Generate Code to Create JSON

    ; The following JSON is sent in the request body.

    ; {
    ;   "path": "/video.mp4"
    ; }

    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckUpdateString(json,"path","/video.mp4")

    CkHttp::ckSetRequestHeader(http,"Authorization","Bearer DROPBOX_ACCESS_TOKEN")
    CkHttp::ckSetRequestHeader(http,"Content-Type","application/json")

    resp.i = CkHttp::ckPostJson3(http,"https://api.dropboxapi.com/2/files/get_temporary_link","application/json",json)
    If CkHttp::ckLastMethodSuccess(http) = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkJsonObject::ckDispose(json)
        ProcedureReturn
    EndIf

    sbResponseBody.i = CkStringBuilder::ckCreate()
    If sbResponseBody.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttpResponse::ckGetBodySb(resp,sbResponseBody)
    jResp.i = CkJsonObject::ckCreate()
    If jResp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoadSb(jResp,sbResponseBody)
    CkJsonObject::setCkEmitCompact(jResp, 0)

    Debug "Response Body:"
    Debug CkJsonObject::ckEmit(jResp)

    respStatusCode.i = CkHttpResponse::ckStatusCode(resp)
    Debug "Response Status Code = " + Str(respStatusCode)
    If respStatusCode >= 400
        Debug "Response Header:"
        Debug CkHttpResponse::ckHeader(resp)
        Debug "Failed."
        CkHttpResponse::ckDispose(resp)

        CkHttp::ckDispose(http)
        CkJsonObject::ckDispose(json)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonObject::ckDispose(jResp)
        ProcedureReturn
    EndIf

    CkHttpResponse::ckDispose(resp)

    ; Sample JSON response:
    ; (Sample code for parsing the JSON response is shown below)

    ; {
    ;   "metadata": {
    ;     "name": "Prime_Numbers.txt",
    ;     "id": "id:a4ayc_80_OEAAAAAAAAAXw",
    ;     "client_modified": "2015-05-12T15:50:38Z",
    ;     "server_modified": "2015-05-12T15:50:38Z",
    ;     "rev": "a1c10ce0dd78",
    ;     "size": 7212,
    ;     "path_lower": "/homework/math/prime_numbers.txt",
    ;     "path_display": "/Homework/math/Prime_Numbers.txt",
    ;     "sharing_info": {
    ;       "read_only": true,
    ;       "parent_shared_folder_id": "84528192421",
    ;       "modified_by": "dbid:AAH4f99T0taONIb-OurWxbNQ6ywGRopQngc"
    ;     },
    ;     "is_downloadable": true,
    ;     "property_groups": [
    ;       {
    ;         "template_id": "ptid:1a5n2i6d3OYEAAAAAAAAAYa",
    ;         "fields": [
    ;           {
    ;             "name": "Security Policy",
    ;             "value": "Confidential"
    ;           }
    ;         ]
    ;       }
    ;     ],
    ;     "has_explicit_shared_members": false,
    ;     "content_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
    ;   },
    ;   "link": "https://dl.dropboxusercontent.com/apitl/1/YXNkZmFzZGcyMzQyMzI0NjU2NDU2NDU2"
    ; }

    ; Sample code for parsing the JSON response...
    ; Use the following online tool to generate parsing code from sample JSON:
    ; Generate Parsing Code from JSON

    template_id.s
    j.i
    count_j.i
    name.s
    value.s

    metadataName.s = CkJsonObject::ckStringOf(jResp,"metadata.name")
    metadataId.s = CkJsonObject::ckStringOf(jResp,"metadata.id")
    metadataClient_modified.s = CkJsonObject::ckStringOf(jResp,"metadata.client_modified")
    metadataServer_modified.s = CkJsonObject::ckStringOf(jResp,"metadata.server_modified")
    metadataRev.s = CkJsonObject::ckStringOf(jResp,"metadata.rev")
    metadataSize.i = CkJsonObject::ckIntOf(jResp,"metadata.size")
    metadataPath_lower.s = CkJsonObject::ckStringOf(jResp,"metadata.path_lower")
    metadataPath_display.s = CkJsonObject::ckStringOf(jResp,"metadata.path_display")
    metadataSharing_infoRead_only.i = CkJsonObject::ckBoolOf(jResp,"metadata.sharing_info.read_only")
    metadataSharing_infoParent_shared_folder_id.s = CkJsonObject::ckStringOf(jResp,"metadata.sharing_info.parent_shared_folder_id")
    metadataSharing_infoModified_by.s = CkJsonObject::ckStringOf(jResp,"metadata.sharing_info.modified_by")
    metadataIs_downloadable.i = CkJsonObject::ckBoolOf(jResp,"metadata.is_downloadable")
    metadataHas_explicit_shared_members.i = CkJsonObject::ckBoolOf(jResp,"metadata.has_explicit_shared_members")
    metadataContent_hash.s = CkJsonObject::ckStringOf(jResp,"metadata.content_hash")
    link.s = CkJsonObject::ckStringOf(jResp,"link")
    i.i = 0
    count_i.i = CkJsonObject::ckSizeOfArray(jResp,"metadata.property_groups")
    While i < count_i
        CkJsonObject::setCkI(jResp, i)
        template_id = CkJsonObject::ckStringOf(jResp,"metadata.property_groups[i].template_id")
        j = 0
        count_j = CkJsonObject::ckSizeOfArray(jResp,"metadata.property_groups[i].fields")
        While j < count_j
            CkJsonObject::setCkJ(jResp, j)
            name = CkJsonObject::ckStringOf(jResp,"metadata.property_groups[i].fields[j].name")
            value = CkJsonObject::ckStringOf(jResp,"metadata.property_groups[i].fields[j].value")
            j = j + 1
        Wend
        i = i + 1
    Wend


    CkHttp::ckDispose(http)
    CkJsonObject::ckDispose(json)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonObject::ckDispose(jResp)


    ProcedureReturn
EndProcedure

 

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