(PureBasic) WhatsApp - Upload Media

Demonstrates how to upload media to the WhatsApp Business API client. The POST body must contain the binary media data and the Content-Type header must be set to the type of the media being uploaded.

For more information, see https://developers.facebook.com/docs/whatsapp/api/media

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkBinData.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkHttpResponse.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://your-webapp-hostname:your-webapp-port/v1/media \
    ; -H 'Authorization: Bearer your-auth-token' \ 
    ; -H 'Content-Type: image/jpeg'
    ; --data-binary @your-file-path

    ; Use the following online tool to generate HTTP code from a CURL command
    ; Convert a cURL Command to HTTP Source Code

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

    success = CkBinData::ckLoadFile(bdRequestBody,"your-file-path")
    If success <> 1
        Debug "Failed to load your-file-path"
        CkHttp::ckDispose(http)
        CkBinData::ckDispose(bdRequestBody)
        ProcedureReturn
    EndIf

    ; Adds the "Authorization: Bearer your-auth-token" header.
    CkHttp::setCkAuthToken(http, "your-auth-token")

    resp.i = CkHttp::ckPBinaryBd(http,"POST","https://your-webapp-hostname:your-webapp-port/v1/media",bdRequestBody,"image/jpeg",0,0)
    If CkHttp::ckLastMethodSuccess(http) = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkBinData::ckDispose(bdRequestBody)
        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)
        CkBinData::ckDispose(bdRequestBody)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonObject::ckDispose(jResp)
        ProcedureReturn
    EndIf

    CkHttpResponse::ckDispose(resp)

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

    ; {
    ;   "messages": [
    ;     {
    ;       "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
    ;     }
    ;   ]
    ; }

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

    id.s

    i.i = 0
    count_i.i = CkJsonObject::ckSizeOfArray(jResp,"messages")
    While i < count_i
        CkJsonObject::setCkI(jResp, i)
        id = CkJsonObject::ckStringOf(jResp,"messages[i].id")
        i = i + 1
    Wend


    CkHttp::ckDispose(http)
    CkBinData::ckDispose(bdRequestBody)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonObject::ckDispose(jResp)


    ProcedureReturn
EndProcedure