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Create ITIDA Signed JSON and Send to ETA (Egypt Tax Authority) Portal
See more Egypt ITIDA Examples
Demonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements where Chilkat automatically does the ITIDA JSON canonicalization. Also shows the code to send to the ETA Portal.Chilkat Go Downloads
success := false
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
crypt := chilkat.NewCrypt2()
crypt.SetVerboseLogging(true)
cert := chilkat.NewCert()
cert.SetVerboseLogging(true)
// Set the smart card PIN, which will be needed for signing.
cert.SetSmartCardPin("12345678")
// There are many ways to load the certificate.
// This example was created for a customer using an ePass2003 USB token.
// Assuming the USB token is the only source of a hardware-based private key..
success = cert.LoadFromSmartcard("")
if success == false {
fmt.Println(cert.LastErrorText())
crypt.DisposeCrypt2()
cert.DisposeCert()
return
}
// Tell the crypt class to use this cert.
success = crypt.SetSigningCert(cert)
if success == false {
fmt.Println(crypt.LastErrorText())
crypt.DisposeCrypt2()
cert.DisposeCert()
return
}
cmsOptions := chilkat.NewJsonObject()
// Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
cmsOptions.UpdateBool("DigestData",true)
cmsOptions.UpdateBool("OmitAlgorithmIdNull",true)
// Indicate that we are passing normal JSON and we want Chilkat do automatically
// do the ITIDA JSON canonicalization:
cmsOptions.UpdateBool("CanonicalizeITIDA",true)
crypt.SetCmsOptions(cmsOptions.Emit())
// The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures.
// To create a CAdES-BES signature, set this property equal to true.
crypt.SetCadesEnabled(true)
crypt.SetHashAlgorithm("sha256")
jsonSigningAttrs := chilkat.NewJsonObject()
jsonSigningAttrs.UpdateInt("contentType",1)
jsonSigningAttrs.UpdateInt("signingTime",1)
jsonSigningAttrs.UpdateInt("messageDigest",1)
jsonSigningAttrs.UpdateInt("signingCertificateV2",1)
crypt.SetSigningAttributes(jsonSigningAttrs.Emit())
// By default, all the certs in the chain of authentication are included in the signature.
// If desired, we can choose to only include the signing certificate:
crypt.SetIncludeCertChain(false)
// Pass a JSON document such as the following. Chilkat will do the ITIDA canonicalization.
// (It is the canonicalized JSON that gets signed.)
// {
// "issuer":{
// "address":{
// "branchID":"0",
// "country":"EG",
// "regionCity":"Cairo",
// "postalCode":"",
// "buildingNumber":"0",
// "street":"123rd Street",
// "governate":"GOVERNATE"
// },
// "type":"B",
// "id":"209999899",
// "name":"Xyz SAE"
// },
// "receiver":{
// "address":{
// "country":"EG",
// "regionCity":"CAIRO",
// "postalCode":"11435",
// "buildingNumber":"0",
// "street":"Autostrad Road Abc",
// "governate":"GOVERNATE"
// },
// "type":"B",
// "id":"999999999",
// "name":"XYZ EGYPT FOR TRADE"
// },
// "documentType":"I",
// "documentTypeVersion":"1.0",
// "dateTimeIssued":"2020-11-15T11:04:53Z",
// "taxpayerActivityCode":"1073",
// "internalID":"ZZZZ999",
// "purchaseOrderReference":"2009199918",
// "salesOrderReference":"",
// "payment":{
// "bankName":"",
// "bankAddress":"",
// "bankAccountNo":"",
// "bankAccountIBAN":"",
// "swiftCode":"",
// "terms":""
// },
// "delivery":{
// "approach":"",
// "packaging":"",
// "dateValidity":"",
// "exportPort":"",
// "countryOfOrigin":"EG",
// "grossWeight":0,
// "netWeight":0,
// "terms":""
// },
// "invoiceLines":[
// {
// "description":"CDM Widget 48GX99X12BA",
// "itemType":"GS1",
// "itemCode":"7622213335056",
// "unitType":"CS",
// "quantity":1.00,
// "unitValue":{
// "currencySold":"EGP",
// "amountEGP":588.67,
// "amountSold":0,
// "currencyExchangeRate":0
// },
// "salesTotal":588.67,
// "total":603.97,
// "valueDifference":0,
// "totalTaxableFees":0,
// "netTotal":529.8,
// "itemsDiscount":0,
// "discount":{
// "rate":10.00,
// "amount":58.87
// },
// "taxableItems":[
// {
// "taxType":"T1",
// "amount":74.17,
// "subType":"No sub",
// "rate":14.00
// }
// ],
// "internalCode":"9099994"
// }
// ],
// "totalSales":588.67,
// "totalSalesAmount":588.67,
// "totalDiscountAmount":58.87,
// "netAmount":529.80,
// "taxTotals":[
// {
// "taxType":"T1",
// "amount":74.17
// }
// ],
// "extraDiscountAmount":0,
// "totalItemsDiscountAmount":0,
// "totalAmount":603.97,
// }
// Build the above JSON..
// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON
json := chilkat.NewJsonObject()
json.UpdateString("issuer.address.branchID","0")
json.UpdateString("issuer.address.country","EG")
json.UpdateString("issuer.address.regionCity","Cairo")
json.UpdateString("issuer.address.postalCode","")
json.UpdateString("issuer.address.buildingNumber","0")
json.UpdateString("issuer.address.street","123rd Street")
json.UpdateString("issuer.address.governate","GOVERNATE")
json.UpdateString("issuer.type","B")
json.UpdateString("issuer.id","209999899")
json.UpdateString("issuer.name","Xyz SAE")
json.UpdateString("receiver.address.country","EG")
json.UpdateString("receiver.address.regionCity","CAIRO")
json.UpdateString("receiver.address.postalCode","11435")
json.UpdateString("receiver.address.buildingNumber","0")
json.UpdateString("receiver.address.street","Autostrad Road Abc")
json.UpdateString("receiver.address.governate","GOVERNATE")
json.UpdateString("receiver.type","B")
json.UpdateString("receiver.id","999999999")
json.UpdateString("receiver.name","XYZ EGYPT FOR TRADE")
json.UpdateString("documentType","I")
json.UpdateString("documentTypeVersion","1.0")
json.UpdateString("dateTimeIssued","2020-11-15T11:04:53Z")
json.UpdateString("taxpayerActivityCode","1073")
json.UpdateString("internalID","ZZZZ999")
json.UpdateString("purchaseOrderReference","2009199918")
json.UpdateString("salesOrderReference","")
json.UpdateString("payment.bankName","")
json.UpdateString("payment.bankAddress","")
json.UpdateString("payment.bankAccountNo","")
json.UpdateString("payment.bankAccountIBAN","")
json.UpdateString("payment.swiftCode","")
json.UpdateString("payment.terms","")
json.UpdateString("delivery.approach","")
json.UpdateString("delivery.packaging","")
json.UpdateString("delivery.dateValidity","")
json.UpdateString("delivery.exportPort","")
json.UpdateString("delivery.countryOfOrigin","EG")
json.UpdateInt("delivery.grossWeight",0)
json.UpdateInt("delivery.netWeight",0)
json.UpdateString("delivery.terms","")
json.UpdateString("invoiceLines[0].description","CDM Widget 48GX99X12BA")
json.UpdateString("invoiceLines[0].itemType","GS1")
json.UpdateString("invoiceLines[0].itemCode","7622213335056")
json.UpdateString("invoiceLines[0].unitType","CS")
json.UpdateNumber("invoiceLines[0].quantity","1.00")
json.UpdateString("invoiceLines[0].unitValue.currencySold","EGP")
json.UpdateNumber("invoiceLines[0].unitValue.amountEGP","588.67")
json.UpdateInt("invoiceLines[0].unitValue.amountSold",0)
json.UpdateInt("invoiceLines[0].unitValue.currencyExchangeRate",0)
json.UpdateNumber("invoiceLines[0].salesTotal","588.67")
json.UpdateNumber("invoiceLines[0].total","603.97")
json.UpdateInt("invoiceLines[0].valueDifference",0)
json.UpdateInt("invoiceLines[0].totalTaxableFees",0)
json.UpdateNumber("invoiceLines[0].netTotal","529.8")
json.UpdateInt("invoiceLines[0].itemsDiscount",0)
json.UpdateNumber("invoiceLines[0].discount.rate","10.00")
json.UpdateNumber("invoiceLines[0].discount.amount","58.87")
json.UpdateString("invoiceLines[0].taxableItems[0].taxType","T1")
json.UpdateNumber("invoiceLines[0].taxableItems[0].amount","74.17")
json.UpdateString("invoiceLines[0].taxableItems[0].subType","No sub")
json.UpdateNumber("invoiceLines[0].taxableItems[0].rate","14.00")
json.UpdateString("invoiceLines[0].internalCode","9099994")
json.UpdateNumber("totalSales","588.67")
json.UpdateNumber("totalSalesAmount","588.67")
json.UpdateNumber("totalDiscountAmount","58.87")
json.UpdateNumber("netAmount","529.80")
json.UpdateString("taxTotals[0].taxType","T1")
json.UpdateNumber("taxTotals[0].amount","74.17")
json.UpdateInt("extraDiscountAmount",0)
json.UpdateInt("totalItemsDiscountAmount",0)
json.UpdateNumber("totalAmount","603.97")
json.SetEmitCompact(true)
jsonToSign := json.Emit()
// Create the CAdES-BES signature.
crypt.SetEncodingMode("base64")
// Make sure we sign the utf-8 byte representation of the JSON string
crypt.SetCharset("utf-8")
sigBase64 := crypt.SignStringENC(*jsonToSign)
if crypt.LastMethodSuccess() == false {
fmt.Println(crypt.LastErrorText())
crypt.DisposeCrypt2()
cert.DisposeCert()
cmsOptions.DisposeJsonObject()
jsonSigningAttrs.DisposeJsonObject()
json.DisposeJsonObject()
return
}
fmt.Println("Base64 signature:")
fmt.Println(*sigBase64)
// Insert the base64 signature into the JSON to be sent
json.UpdateString("signatures[0].signatureType","I")
json.UpdateString("signatures[0].value",*sigBase64)
// Wrap the JSON in {"documents":[ ... ]}
sbToSend := chilkat.NewStringBuilder()
sbToSend.Append("{\"documents\":[")
sbToSend.Append(*json.Emit())
sbToSend.Append("]}")
// ------------------------------------------------------------------------
// Get an access token using our client ID and client secret key
clientId := "abc999ff-1234"
clientSecretKey := "123fff22-1234-abcd"
http := chilkat.NewHttp()
// Causes the Authorization: Basic header to be added..
http.SetLogin(clientId)
http.SetPassword(clientSecretKey)
http.SetBasicAuth(true)
req := chilkat.NewHttpRequest()
req.SetHttpVerb("POST")
req.SetPath("/connect/token")
req.SetContentType("application/x-www-form-urlencoded")
req.AddParam("grant_type","client_credentials")
req.AddHeader("Connection","close")
http.SetAccept("application/json")
resp := chilkat.NewHttpResponse()
success = http.HttpReq("https://id.preprod.eta.gov.eg/connect/token",req,resp)
if success == false {
fmt.Println(http.LastErrorText())
crypt.DisposeCrypt2()
cert.DisposeCert()
cmsOptions.DisposeJsonObject()
jsonSigningAttrs.DisposeJsonObject()
json.DisposeJsonObject()
sbToSend.DisposeStringBuilder()
http.DisposeHttp()
req.DisposeHttpRequest()
resp.DisposeHttpResponse()
return
}
http.CloseAllConnections()
fmt.Println("Response status code: ", resp.StatusCode())
fmt.Println("Response body:")
fmt.Println(resp.BodyStr())
if resp.StatusCode() != 200 {
fmt.Println("Failed.")
crypt.DisposeCrypt2()
cert.DisposeCert()
cmsOptions.DisposeJsonObject()
jsonSigningAttrs.DisposeJsonObject()
json.DisposeJsonObject()
sbToSend.DisposeStringBuilder()
http.DisposeHttp()
req.DisposeHttpRequest()
resp.DisposeHttpResponse()
return
}
jsonToken := chilkat.NewJsonObject()
success = jsonToken.Load(resp.BodyStr())
accessToken := jsonToken.StringOf("access_token")
fmt.Println("access_token = ", *accessToken)
// ------------------------------------------------------------------------
// Submit the signed JSON to the ETA (Egypt Tax Authority) Portal
// No longer sending basic authentication...
http.SetLogin("")
http.SetPassword("")
http.SetBasicAuth(false)
// Setting the AuthToken property causes the "Authorization: Bearer <token>" header to be added to each request.
http.SetAuthToken(*accessToken)
jsonStr := sbToSend.GetAsString()
url := "https://api.preprod.invoicing.eta.gov.eg/api/v1/documentsubmissions"
success = http.HttpStr("POST",url,*jsonStr,"utf-8","application/json; charset=utf-8",resp)
if success == false {
fmt.Println(http.LastErrorText())
crypt.DisposeCrypt2()
cert.DisposeCert()
cmsOptions.DisposeJsonObject()
jsonSigningAttrs.DisposeJsonObject()
json.DisposeJsonObject()
sbToSend.DisposeStringBuilder()
http.DisposeHttp()
req.DisposeHttpRequest()
resp.DisposeHttpResponse()
jsonToken.DisposeJsonObject()
return
}
fmt.Println("Response status code: ", resp.StatusCode())
fmt.Println("Response body:")
fmt.Println(resp.BodyStr())
crypt.DisposeCrypt2()
cert.DisposeCert()
cmsOptions.DisposeJsonObject()
jsonSigningAttrs.DisposeJsonObject()
json.DisposeJsonObject()
sbToSend.DisposeStringBuilder()
http.DisposeHttp()
req.DisposeHttpRequest()
resp.DisposeHttpResponse()
jsonToken.DisposeJsonObject()