Crowloan contribute

examples/polkadot.ts

@@ -53,10 +53,13 @@ async function main(): Promise<void> {
 	// Now we can create our `balances.transfer` unsigned tx. The following
 	// function takes the above data as arguments, so can be performed offline
 	// if desired.
-	const unsigned = methods.balances.transfer(
+	const unsigned = methods.crowdloan.contribute(
 		{
 			value: '90071992547409910',
-			dest: '14E5nqKAp3oAJcmzgZhUD2RcptBeUBScxKHgJKU4HPNcKVf3', // Bob
+			index: 12,
+			signature: {
+				Sr25519: '0xFFFFFFFFFFFFFFFF',
+			},
 		},
 		{
 			address: deriveAddress(alice.publicKey, POLKADOT_SS58_FORMAT),

package.json

@@ -23,7 +23,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "@polkadot/api": "4.0.3",
+    "@polkadot/api": "4.1.1",
     "memoizee": "^0.4.14"
   },
   "devDependencies": {
@@ -31,7 +31,7 @@
     "@types/memoizee": "^0.4.3",
     "standard-version": "^9.1.1",
     "ts-node": "^9.0.0",
-    "typedoc": "^0.20.28",
+    "typedoc": "^0.20.32",
     "typedoc-plugin-markdown": "^3.6.0"
   },
   "resolutions": {

src/methods/crowdloan/contribute.ts

+import {
+	Args,
+	BaseTxInfo,
+	createMethod,
+	OptionsWithMeta,
+	UnsignedTransaction,
+} from '../../util';
+import { MultiSignature } from './types';
+
+export interface CrowdloanContributeArgs extends Args {
+	index: number | string;
+	value: number | string;
+	signature: MultiSignature;
+}
+
+export function contribute(
+	args: CrowdloanContributeArgs,
+	info: BaseTxInfo,
+	options: OptionsWithMeta
+): UnsignedTransaction {
+	return createMethod(
+		{
+			method: {
+				args,
+				name: 'contribute',
+				pallet: 'crowdloan',
+			},
+			...info,
+		},
+		options
+	);
+}

src/methods/crowdloan/index.ts

+export * from './contribute';
+export * from './types';

src/methods/crowdloan/types.ts

+export type MultiSignature = {
+	Ed25519?: string;
+	Sr25519?: string;
+	Ecdsa?: string;
+};

src/methods/index.ts

 import * as balances from './balances';
 import * as claims from './claims';
+import * as crowdloan from './crowdloan';
 import * as democracy from './democracy';
 import * as poll from './poll';
 import * as proxy from './proxy';
@@ -12,6 +13,7 @@ import * as vesting from './vesting';
 export {
 	balances,
 	claims,
+	crowdloan,
 	democracy,
 	poll,
 	proxy,

src/util/testUtil.ts

@@ -306,6 +306,15 @@ export const TEST_METHOD_ARGS = {
 			target: 'Fr4NzY1udSFFLzb2R3qxVQkwz9cZraWkyfH4h3mVVk7BK7P', // seed "//Charlie"
 		},
 	},
+	crowdlaon: {
+		contribute: {
+			value: '90071992547409910',
+			index: 12,
+			signature: {
+				Sr25519: '0xFFFFFFFFFFFFFFFF',
+			},
+		},
+	},
 };
 
 /**