Example of AuthenticateDocument Network Call in Document Scan SDK for Android

The AuthenticateDocument endpoint takes multipart/form-data in the request. If you’re not using a networking library, it may be a little confusing to write. Below is some basic code that will get you going.

Note: This is not production-ready code. Please make the necessary modifications to insert this code in your app.

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private fun createIdDocumentSingle(context: Context,
                                    token: String,
                                    key: String,
                                    frontDocumentResult: DSResult,
                                    backDocumentResult: DSResult?,
                                    documentType: DocumentType,
                                    autoCrop: Boolean): Single<DocumentScanResponse> {
    val frontImage = frontDocumentResult.image
    val frontImageBody = createMultipartBody("Front", frontImage)
    
    if (frontImageBody == null) {
        Log.d(this.toString(), "No front image data found in the document scan data")
        throw createError(context.getString(R.string.front_image_data_missing))
    }
    
    val frontFlash = frontDocumentResult.flashImage
    val backImage = backDocumentResult?.image
    val backFlashImage = backDocumentResult?.flashImage
    
    val transactionId = documentTransactionId
    val submitDocument = if (transactionId == null) {
        YourNetworkManager.yourAPIService.submitDocument(
            token,
            key,
            documentType.rawType,
            autoCrop,
            true,
            documentType.orientation,
            ApplicationSettings.deviceDetails,
            frontImageBody,
            (backImage != null) ? createMultipartBody("Back", backImage) : null,
            (frontFlash != null) ? createMultipartBody("FrontFlash", frontFlash) : null,
            (backFlashImage != null) ? createMultipartBody("BackFlash", backFlashImage): null
        )
    } else {
        YourNetworkManager.yourAPIService.submitRescanDocument(
            token,
            key,
            documentType.rawType,
            autoCrop, true,
            documentType.orientation,
            ApplicationSettings.deviceDetails,
            transactionId,
            frontImageBody,
            (backImage != null) ? createMultipartBody("Back", backImage) : null,
            (frontFlash != null) ? createMultipartBody("FrontFlash", frontFlash) : null,
            (backFlashImage != null) ? createMultipartBody("BackFlash", backFlashImage): null
        )
    }
    
    return submitDocument
        .subscribeOn(schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
}