Rust
Rust
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 Rust Downloads
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
let crypt = chilkat::Crypt2::new();
crypt.set_verbose_logging(true);
let cert = chilkat::Cert::new();
cert.set_verbose_logging(true);
// Set the smart card PIN, which will be needed for signing.
cert.set_smart_card_pin("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..
if cert.load_from_smartcard("").is_err() {
println!("{}", cert.last_error_text());
return;
}
// Tell the crypt class to use this cert.
if crypt.set_signing_cert(&cert).is_err() {
println!("{}", crypt.last_error_text());
return;
}
let cms_options = chilkat::JsonObject::new();
// Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
let _ = cms_options.update_bool("DigestData", true);
let _ = cms_options.update_bool("OmitAlgorithmIdNull", true);
// Indicate that we are passing normal JSON and we want Chilkat do automatically
// do the ITIDA JSON canonicalization:
let _ = cms_options.update_bool("CanonicalizeITIDA", true);
crypt.set_cms_options(&cms_options.emit().unwrap_or_default());
// 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.set_cades_enabled(true);
crypt.set_hash_algorithm("sha256");
let json_signing_attrs = chilkat::JsonObject::new();
let _ = json_signing_attrs.update_int("contentType", 1);
let _ = json_signing_attrs.update_int("signingTime", 1);
let _ = json_signing_attrs.update_int("messageDigest", 1);
let _ = json_signing_attrs.update_int("signingCertificateV2", 1);
crypt.set_signing_attributes(&json_signing_attrs.emit().unwrap_or_default());
// 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.set_include_cert_chain(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
let json = chilkat::JsonObject::new();
let _ = json.update_string("issuer.address.branchID", "0");
let _ = json.update_string("issuer.address.country", "EG");
let _ = json.update_string("issuer.address.regionCity", "Cairo");
let _ = json.update_string("issuer.address.postalCode", "");
let _ = json.update_string("issuer.address.buildingNumber", "0");
let _ = json.update_string("issuer.address.street", "123rd Street");
let _ = json.update_string("issuer.address.governate", "GOVERNATE");
let _ = json.update_string("issuer.type", "B");
let _ = json.update_string("issuer.id", "209999899");
let _ = json.update_string("issuer.name", "Xyz SAE");
let _ = json.update_string("receiver.address.country", "EG");
let _ = json.update_string("receiver.address.regionCity", "CAIRO");
let _ = json.update_string("receiver.address.postalCode", "11435");
let _ = json.update_string("receiver.address.buildingNumber", "0");
let _ = json.update_string("receiver.address.street", "Autostrad Road Abc");
let _ = json.update_string("receiver.address.governate", "GOVERNATE");
let _ = json.update_string("receiver.type", "B");
let _ = json.update_string("receiver.id", "999999999");
let _ = json.update_string("receiver.name", "XYZ EGYPT FOR TRADE");
let _ = json.update_string("documentType", "I");
let _ = json.update_string("documentTypeVersion", "1.0");
let _ = json.update_string("dateTimeIssued", "2020-11-15T11:04:53Z");
let _ = json.update_string("taxpayerActivityCode", "1073");
let _ = json.update_string("internalID", "ZZZZ999");
let _ = json.update_string("purchaseOrderReference", "2009199918");
let _ = json.update_string("salesOrderReference", "");
let _ = json.update_string("payment.bankName", "");
let _ = json.update_string("payment.bankAddress", "");
let _ = json.update_string("payment.bankAccountNo", "");
let _ = json.update_string("payment.bankAccountIBAN", "");
let _ = json.update_string("payment.swiftCode", "");
let _ = json.update_string("payment.terms", "");
let _ = json.update_string("delivery.approach", "");
let _ = json.update_string("delivery.packaging", "");
let _ = json.update_string("delivery.dateValidity", "");
let _ = json.update_string("delivery.exportPort", "");
let _ = json.update_string("delivery.countryOfOrigin", "EG");
let _ = json.update_int("delivery.grossWeight", 0);
let _ = json.update_int("delivery.netWeight", 0);
let _ = json.update_string("delivery.terms", "");
let _ = json.update_string("invoiceLines[0].description", "CDM Widget 48GX99X12BA");
let _ = json.update_string("invoiceLines[0].itemType", "GS1");
let _ = json.update_string("invoiceLines[0].itemCode", "7622213335056");
let _ = json.update_string("invoiceLines[0].unitType", "CS");
let _ = json.update_number("invoiceLines[0].quantity", "1.00");
let _ = json.update_string("invoiceLines[0].unitValue.currencySold", "EGP");
let _ = json.update_number("invoiceLines[0].unitValue.amountEGP", "588.67");
let _ = json.update_int("invoiceLines[0].unitValue.amountSold", 0);
let _ = json.update_int("invoiceLines[0].unitValue.currencyExchangeRate", 0);
let _ = json.update_number("invoiceLines[0].salesTotal", "588.67");
let _ = json.update_number("invoiceLines[0].total", "603.97");
let _ = json.update_int("invoiceLines[0].valueDifference", 0);
let _ = json.update_int("invoiceLines[0].totalTaxableFees", 0);
let _ = json.update_number("invoiceLines[0].netTotal", "529.8");
let _ = json.update_int("invoiceLines[0].itemsDiscount", 0);
let _ = json.update_number("invoiceLines[0].discount.rate", "10.00");
let _ = json.update_number("invoiceLines[0].discount.amount", "58.87");
let _ = json.update_string("invoiceLines[0].taxableItems[0].taxType", "T1");
let _ = json.update_number("invoiceLines[0].taxableItems[0].amount", "74.17");
let _ = json.update_string("invoiceLines[0].taxableItems[0].subType", "No sub");
let _ = json.update_number("invoiceLines[0].taxableItems[0].rate", "14.00");
let _ = json.update_string("invoiceLines[0].internalCode", "9099994");
let _ = json.update_number("totalSales", "588.67");
let _ = json.update_number("totalSalesAmount", "588.67");
let _ = json.update_number("totalDiscountAmount", "58.87");
let _ = json.update_number("netAmount", "529.80");
let _ = json.update_string("taxTotals[0].taxType", "T1");
let _ = json.update_number("taxTotals[0].amount", "74.17");
let _ = json.update_int("extraDiscountAmount", 0);
let _ = json.update_int("totalItemsDiscountAmount", 0);
let _ = json.update_number("totalAmount", "603.97");
json.set_emit_compact(true);
let json_to_sign = json.emit().unwrap_or_default();
// Create the CAdES-BES signature.
crypt.set_encoding_mode("base64");
// Make sure we sign the utf-8 byte representation of the JSON string
crypt.set_charset("utf-8");
let Ok(sig_base64) = crypt.sign_string_enc(&json_to_sign) else {
println!("{}", crypt.last_error_text());
return;
};
println!("Base64 signature:");
println!("{}", sig_base64);
// Insert the base64 signature into the JSON to be sent
let _ = json.update_string("signatures[0].signatureType", "I");
let _ = json.update_string("signatures[0].value", &sig_base64);
// Wrap the JSON in {"documents":[ ... ]}
let sb_to_send = chilkat::StringBuilder::new();
let _ = sb_to_send.append("{\"documents\":[");
let _ = sb_to_send.append(&json.emit().unwrap_or_default());
let _ = sb_to_send.append("]}");
// ------------------------------------------------------------------------
// Get an access token using our client ID and client secret key
let client_id = "abc999ff-1234".to_string();
let client_secret_key = "123fff22-1234-abcd".to_string();
let http = chilkat::Http::new();
// Causes the Authorization: Basic header to be added..
http.set_login(&client_id);
http.set_password(&client_secret_key);
http.set_basic_auth(true);
let req = chilkat::HttpRequest::new();
req.set_http_verb("POST");
req.set_path("/connect/token");
req.set_content_type("application/x-www-form-urlencoded");
req.add_param("grant_type", "client_credentials");
req.add_header("Connection", "close");
http.set_accept("application/json");
let resp = chilkat::HttpResponse::new();
if http.http_req("https://id.preprod.eta.gov.eg/connect/token", &req, &resp).is_err() {
println!("{}", http.last_error_text());
return;
}
let _ = http.close_all_connections();
println!("Response status code: {}", resp.status_code());
println!("Response body:");
println!("{}", resp.body_str());
if resp.status_code() != 200 {
println!("Failed.");
return;
}
let json_token = chilkat::JsonObject::new();
let _ = json_token.load(&resp.body_str()).is_ok();
let access_token = json_token.string_of("access_token").unwrap_or_default();
println!("access_token = {}", access_token);
// ------------------------------------------------------------------------
// Submit the signed JSON to the ETA (Egypt Tax Authority) Portal
// No longer sending basic authentication...
http.set_login("");
http.set_password("");
http.set_basic_auth(false);
// Setting the AuthToken property causes the "Authorization: Bearer <token>" header to be added to each request.
http.set_auth_token(&access_token);
let json_str = sb_to_send.get_as_string().unwrap_or_default();
let url = "https://api.preprod.invoicing.eta.gov.eg/api/v1/documentsubmissions".to_string();
if http.http_str("POST", &url, &json_str, "utf-8", "application/json; charset=utf-8", &resp).is_err() {
println!("{}", http.last_error_text());
return;
}
println!("Response status code: {}", resp.status_code());
println!("Response body:");
println!("{}", resp.body_str());