stack_wallet/lib/utilities/paynym_is_api.dart
2023-05-27 00:21:16 +03:00

600 lines
15 KiB
Dart

/*
* This file is part of Stack Wallet.
*
* Copyright (c) 2023 Cypher Stack
* All Rights Reserved.
* The code is distributed under GPLv3 license, see LICENSE file for details.
* Generated by Cypher Stack on 2023-05-26
*
*/
import 'dart:convert';
import 'package:flutter/cupertino.dart';
import 'package:http/http.dart' as http;
import 'package:stackwallet/models/paynym/created_paynym.dart';
import 'package:stackwallet/models/paynym/paynym_account.dart';
import 'package:stackwallet/models/paynym/paynym_claim.dart';
import 'package:stackwallet/models/paynym/paynym_follow.dart';
import 'package:stackwallet/models/paynym/paynym_response.dart';
import 'package:stackwallet/models/paynym/paynym_unfollow.dart';
import 'package:tuple/tuple.dart';
// todo: better error message parsing (from response itself?)
class PaynymIsApi {
static const String baseURL = "https://paynym.is/api";
static const String version = "/v1";
Future<Tuple2<Map<String, dynamic>, int>> _post(
String endpoint,
Map<String, dynamic> body, [
Map<String, String> additionalHeaders = const {},
]) async {
String url = baseURL +
version +
(endpoint.startsWith("/") ? endpoint : "/$endpoint");
final uri = Uri.parse(url);
final headers = {
'Content-Type': 'application/json; charset=UTF-8',
}..addAll(additionalHeaders);
final response = await http.post(
uri,
headers: headers,
body: jsonEncode(body),
);
debugPrint("Paynym request uri: $uri");
debugPrint("Paynym request body: $body");
debugPrint("Paynym request headers: $headers");
debugPrint("Paynym response code: ${response.statusCode}");
debugPrint("Paynym response body: ${response.body}");
return Tuple2(
jsonDecode(response.body) as Map<String, dynamic>,
response.statusCode,
);
}
// ### `/api/v1/create`
//
// Create a new PayNym entry in the database.
//
//
//
// **Request**
//
// ```json
// POST /api/v1/create
// content-type: application/json
//
// {
// "code":"PM8T..."
// }
//
// ```
//
// | Value | Key |
// | ----- | -------------------- |
// | code | A valid payment code |
//
//
//
// **Response** (201)
//
// ```json
// {
// "claimed": false,
// "nymID": "v9pJm...",
// "nymName": "snowysea",
// "segwit": true,
// "token": "IlBNOF...",
// }
// ```
//
// | Code | Meaning |
// | ---- | --------------------------- |
// | 201 | PayNym created successfully |
// | 200 | PayNym already exists |
// | 400 | Bad request |
//
//
//
// ------
Future<PaynymResponse<CreatedPaynym>> create(String code) async {
final result = await _post("/create", {"code": code});
String message;
CreatedPaynym? value;
switch (result.item2) {
case 201:
message = "PayNym created successfully";
value = CreatedPaynym.fromMap(result.item1);
break;
case 200:
message = "PayNym already exists";
value = CreatedPaynym.fromMap(result.item1);
break;
case 400:
message = "Bad request";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
return PaynymResponse(value, result.item2, message);
}
// ### `/api/v1/token`
//
// Update the verification token in the database. A token is valid for 24 hours and only for a single authenticated call. The payment code must be in the database or the request will return `404`
//
//
//
// **Request**
//
// ```json
// POST /api/v1/token/
// content-type: application/json
//
// {"code":"PM8T..."}
// ```
//
// | Value | Key |
// | ----- | -------------------- |
// | code | A valid payment code |
//
//
//
// **Response** (200)
//
// ```json
// {
// "token": "DP7S3w..."
// }
// ```
//
// | Code | Meaning |
// | ---- | ------------------------------ |
// | 200 | Token was successfully updated |
// | 404 | Payment code was not found |
// | 400 | Bad request |
//
//
//
// ------
Future<PaynymResponse<String>> token(String code) async {
final result = await _post("/token", {"code": code});
String message;
String? value;
switch (result.item2) {
case 200:
message = "Token was successfully updated";
value = result.item1["token"] as String;
break;
case 404:
message = "Payment code was not found";
break;
case 400:
message = "Bad request";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
return PaynymResponse(value, result.item2, message);
}
// ### `/api/v1/nym`
//
// Returns all known information about a PayNym account including any other payment codes associated with this Nym.
//
//
//
// **Request**
//
// ```json
// POST /api/v1/nym/
// content-type: application/json
//
// {"nym":"PM8T..."}
// ```
//
// | Value | Key |
// | ----- | ---------------------------------------- |
// | nym | A valid payment `code`, `nymID`, or `nymName` |
//
//
//
// **Response** (200)
//
// ```json
// {
// "codes": [
// {
// "claimed": true,
// "segwit": true,
// "code": "PM8T..."
// }
// ],
// "followers": [
// {
// "nymId": "5iEpU..."
// }
// ],
// "following": [],
// "nymID": "wXGgdC...",
// "nymName": "littlevoice"
// }
// ```
//
// If the `compact=true` parameter is added to the URL, follower and following will not returned. This can achieve faster requests.
//
// | Code | Meaning |
// | ---- | ---------------------- |
// | 200 | Nym found and returned |
// | 404 | Nym not found |
// | 400 | Bad request |
Future<PaynymResponse<PaynymAccount>> nym(String code,
[bool compact = false]) async {
final Map<String, dynamic> requestBody = {"nym": code};
if (compact) {
requestBody["compact"] = true;
}
String message;
PaynymAccount? value;
int statusCode;
try {
final result = await _post("/nym", requestBody);
statusCode = result.item2;
switch (result.item2) {
case 200:
message = "Nym found and returned";
value = PaynymAccount.fromMap(result.item1);
break;
case 404:
message = "Nym not found";
break;
case 400:
message = "Bad request";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
} catch (e) {
value = null;
message = e.toString();
statusCode = -1;
}
return PaynymResponse(value, statusCode, message);
}
// ## Authenticated Requests
//
//
//
// ### Making authenticated requests
//
// 1. Set an `auth-token` header containing the `token`
// 2. Sign the `token` with the private key of the notification address of the primary payment code
// 3. Add the `signature` to the body of the request.
// 4. A token can only be used once per authenticated request. A new `token` will be returned in the response of a successful authenticated request
//
// ### `/api/v1/claim`
//
// Claim ownership of a payment code added to a newly created PayNym identity.
//
//
//
// **Request**
//
// ```json
// POST /api/v1/claim
// content-type: application/json
// auth-token: IlBNOFRKWmt...
//
//
// {"signature":"..."}
// ```
//
// | Value | Key |
// | --------- | ---------------------------------------- |
// | signature | The `token` signed by the BIP47 notification address |
//
//
//
// **Response** (200)
//
// ```json
// {
// "claimed" : "PM8T...",
// "token" : "IlBNOFRKSmt..."
// }
// ```
//
// | Code | Meaning |
// | ---- | --------------------------------- |
// | 200 | Payment code successfully claimed |
// | 400 | Bad request |
//
// ------
Future<PaynymResponse<PaynymClaim>> claim(
String token,
String signature,
) async {
final result = await _post(
"/claim",
{"signature": signature},
{"auth-token": token},
);
String message;
PaynymClaim? value;
switch (result.item2) {
case 200:
message = "Payment code successfully claimed";
value = PaynymClaim.fromMap(result.item1);
break;
case 400:
message = "Bad request";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
return PaynymResponse(value, result.item2, message);
}
// ### `/api/v1/follow`
//
// Follow another PayNym account.
//
//
//
// **Request**
//
// ```json
// POST /api/v1/follow/
// content-type: application/json
// auth-token: IlBNOFRKWmt...
//
// {
// "target": "wXGgdC...",
// "signature":"..."
// }
// ```
//
// | Key | Value |
// | --------- | ---------------------------------------- |
// | target | The payment code to follow |
// | signature | The `token` signed by the BIP47 notification address |
//
// **Response** (200)
//
// ```json
// {
// "follower": "5iEpU...",
// "following": "wXGgdC...",
// "token" : "IlBNOFRKSmt..."
// }
// ```
//
// | Code | Meaning |
// | ---- | ---------------------------------------- |
// | 200 | Added to followers |
// | 404 | Payment code not found |
// | 400 | Bad request |
// | 401 | Unauthorized token or signature or Unclaimed payment code |
//
// ------
Future<PaynymResponse<PaynymFollow>> follow(
String token,
String signature,
String target,
) async {
final result = await _post(
"/follow",
{
"target": target,
"signature": signature,
},
{
"auth-token": token,
},
);
String message;
PaynymFollow? value;
switch (result.item2) {
case 200:
message = "Added to followers";
value = PaynymFollow.fromMap(result.item1);
break;
case 404:
message = "Payment code not found";
break;
case 400:
message = "Bad request";
break;
case 401:
message = "Unauthorized token or signature or Unclaimed payment code";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
return PaynymResponse(value, result.item2, message);
}
// ### `/api/v1/unfollow`
//
// Unfollow another PayNym account.
//
//
//
// **Request**
//
// ```json
// POST /api/v1/unfollow/
// content-type: application/json
// auth-token: IlBNOFRKWmt...
//
// {
// "target": "wXGgdC...",
// "signature":"..."
// }
// ```
//
// | Key | Value |
// | --------- | ---------------------------------------- |
// | target | The payment code to unfollow |
// | signature | The `token` signed by the BIP47 notification address |
//
// **Response** (200)
//
// ```json
// {
// "follower": "5iEpU...",
// "unfollowing": "wXGgdC...",
// "token" : "IlBNOFRKSmt..."
// }
// ```
//
// | Code | Meaning |
// | ---- | ---------------------------------------- |
// | 200 | Unfollowed successfully |
// | 404 | Payment code not found |
// | 400 | Bad request |
// | 401 | Unauthorized token or signature or Unclaimed payment code |
//
// ------
Future<PaynymResponse<PaynymUnfollow>> unfollow(
String token,
String signature,
String target,
) async {
final result = await _post(
"/unfollow",
{
"target": target,
"signature": signature,
},
{
"auth-token": token,
},
);
String message;
PaynymUnfollow? value;
switch (result.item2) {
case 200:
message = "Unfollowed successfully";
value = PaynymUnfollow.fromMap(result.item1);
break;
case 404:
message = "Payment code not found";
break;
case 400:
message = "Bad request";
break;
case 401:
message = "Unauthorized token or signature or Unclaimed payment code";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
return PaynymResponse(value, result.item2, message);
}
// ### `/api/v1/nym/add`
//
// Add a new payment code to an existing Nym
//
//
//
// **Request**
//
// ```json
// POST /api/v1/nym/add
// content-type: application/json
// auth-token: IlBNOFRKWmt...
//
// {
// "nym": "wXGgdC...",
// "code":"PM8T...",
// "signature":"..."
// }
// ```
//
// | Key | Value |
// | --------- | ------------------------------------------------------------ |
// | nym | A valid payment `code`, `nymID`, or `nymName` |
// | code | A valid payment code |
// | signature | The `token` signed by the BIP47 notification address of the primary payment code. |
//
// **Response** (200)
//
// ```json
// {
// "code":"PM8T...",
// "segwit": true,
// "token" : "IlBNOFRKSmt..."
// }
// ```
//
// | Code | Meaning |
// | ---- | --------------------------------------------------------- |
// | 200 | Nym updated successfully |
// | 404 | Nym not found |
// | 400 | Bad request |
// | 401 | Unauthorized token or signature or Unclaimed payment code |
//
// ------
Future<PaynymResponse<bool>> add(
String token,
String signature,
String nym,
String code,
) async {
final result = await _post(
"/nym/add",
{
"nym": nym,
"code": code,
"signature": signature,
},
{
"auth-token": token,
},
);
String message;
bool value = false;
switch (result.item2) {
case 200:
message = "Code added successfully";
value = true;
break;
case 400:
message = "Bad request";
break;
case 401:
message = "Unauthorized token or signature or Unclaimed payment code";
break;
case 404:
message = "Nym not found";
break;
default:
message = result.item1["message"] as String? ?? "Unknown error";
}
return PaynymResponse(value, result.item2, message);
}
}