feat: NIP 50 search

CHANGELOG.md

@@ -66,3 +66,7 @@
 
 - [new **a** filter](https://github.com/nostr-protocol/nips/commit/e50bf508d9014cfb19bfa8a5c4ec88dc4788d490)
 - Upgrade bip340 dependency
+
+## 1.4.2
+
+- NIP50: search filter

README.md

@@ -23,6 +23,7 @@ flutter pub add nostr
 - [x] [NIP 19 bech32-encoded entities](https://github.com/nostr-protocol/nips/blob/master/19.md)
 - [x] [NIP 20 Command Results](https://github.com/nostr-protocol/nips/blob/master/20.md)
 - [x] [NIP 28 Public Chat](https://github.com/nostr-protocol/nips/blob/master/28.md)
+- [x] [NIP 50 Search Capability](https://github.com/nostr-protocol/nips/blob/master/50.md)
 - [x] [NIP 51 Lists](https://github.com/nostr-protocol/nips/blob/master/51.md)
 
 

lib/src/filter.dart

@@ -27,6 +27,9 @@ class Filter {
  /// maximum number of events to be returned in the initial query
  int? limit;
 
+ /// nip-50 search term
+ String? search;
+
  /// Default constructor
  Filter(
  {this.ids,
@@ -37,7 +40,8 @@ class Filter {
  this.p,
  this.since,
  this.until,
- this.limit});
+ this.limit,
+ this.search});
 
  /// Deserialize a filter from a JSON
  Filter.fromJson(Map<String, dynamic> json) {
@@ -51,6 +55,7 @@ class Filter {
  since = json['since'];
  until = json['until'];
  limit = json['limit'];
+ search = json['search'];
  }
 
  /// Serialize a filter in JSON
@@ -65,6 +70,7 @@ class Filter {
  if (since != null) data['since'] = since;
  if (until != null) data['until'] = until;
  if (limit != null) data['limit'] = limit;
+ if (search != null) data['search'] = search;
  return data;
  }
 }

pubspec.yaml

@@ -1,6 +1,6 @@
 name: nostr
 description: A library for nostr protocol implemented in dart for flutter
-version: 1.4.1
+version: 1.4.2
 homepage: https://github.com/ethicnology/dart-nostr
 
 environment:

test/filter_test.dart

@@ -17,6 +17,7 @@ void main() {
  int since = 1672477960;
  int until = 1674063680;
  int limit = 450;
+ String search = "term";
 
  Filter filter = Filter(
  ids: ids,
@@ -28,6 +29,7 @@ void main() {
  since: since,
  until: until,
  limit: limit,
+ search: search,
  );
 
  expect(filter.ids, ids);
@@ -39,6 +41,7 @@ void main() {
  expect(filter.since, since);
  expect(filter.until, until);
  expect(filter.limit, limit);
+ expect(filter.search, search);
  });
 
  test('Constructor.fromJson', () {
@@ -55,7 +58,8 @@ void main() {
  "#p": [],
  "since": 1672477960,
  "until": 1674063680,
- "limit": 450
+ "limit": 450,
+ "search": "test",
  };
 
  Filter filter = Filter.fromJson(json);
@@ -68,6 +72,7 @@ void main() {
  expect(filter.since, json['since']);
  expect(filter.until, json['until']);
  expect(filter.limit, json['limit']);
+ expect(filter.search, json['search']);
  });
  });
 }

test/request_test.dart

@@ -19,6 +19,7 @@ void main() {
  since: 1672477960,
  until: 1674063680,
  limit: 450,
+ search: "term",
  );
 
  Request req = Request("733209259899167", [myFilter]);
@@ -34,11 +35,12 @@ void main() {
  expect(req.filters[0].since, myFilter.since);
  expect(req.filters[0].until, myFilter.until);
  expect(req.filters[0].limit, myFilter.limit);
+ expect(req.filters[0].search, myFilter.search);
  });
 
  test('Request.serialize', () {
  String serialized =
- '["REQ","733209259899167",{"ids":["047663d895d56aefa3f528935c7ce7dc8939eb721a0ec76ef2e558a8257955d2"],"authors":["0ba0206887bd61579bf65ec09d7806bea32c64be1cf2c978cf031a811cd238db"],"kinds":[0,1,2,7],"#e":[],"#a":[],"#p":[],"since":1672477960,"until":1674063680,"limit":450},{"kinds":[0,1,2,7],"since":1673980547,"limit":450}]';
+ '["REQ","733209259899167",{"ids":["047663d895d56aefa3f528935c7ce7dc8939eb721a0ec76ef2e558a8257955d2"],"authors":["0ba0206887bd61579bf65ec09d7806bea32c64be1cf2c978cf031a811cd238db"],"kinds":[0,1,2,7],"#e":[],"#a":[],"#p":[],"since":1672477960,"until":1674063680,"limit":450,"search":"term"},{"kinds":[0,1,2,7],"since":1673980547,"limit":450}]';
  var json = [
  "REQ",
  "733209259899167",
@@ -55,7 +57,8 @@ void main() {
  "#p": [],
  "since": 1672477960,
  "until": 1674063680,
- "limit": 450
+ "limit": 450,
+ "search": "term",
  },
  {
  "kinds": [0, 1, 2, 7],
@@ -84,7 +87,8 @@ void main() {
  "#p": [],
  "since": 1672477960,
  "until": 1674063680,
- "limit": 450
+ "limit": 450,
+ "search": "term",
  },
  {
  "kinds": [0, 1, 2, 7],
@@ -105,6 +109,7 @@ void main() {
  expect(req.filters[0].since, 1672477960);
  expect(req.filters[0].until, 1674063680);
  expect(req.filters[0].limit, 450);
+ expect(req.filters[0].search, "term");
  expect(req.filters[1].kinds, [0, 1, 2, 7]);
  expect(req.filters[1].since, 1673980547);
  expect(req.filters[1].limit, 450);