✨ Oauth1 support and Twitter node

packages/nodes-base/credentials/OAuth1Api.credentials.ts

@@ -0,0 +1,63 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class OAuth1Api implements ICredentialType {
+	name = 'oAuth1Api';
+	displayName = 'OAuth1 API';
+	properties = [
+		{
+			displayName: 'Consumer Key',
+			name: 'consumerKey',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Consumer Secret',
+			name: 'consumerSecret',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Request Token URL',
+			name: 'requestTokenUrl',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Authorization URL',
+			name: 'authUrl',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Access Token URL',
+			name: 'accessTokenUrl',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Signature Method',
+			name: 'signatureMethod',
+			type: 'options' as NodePropertyTypes,
+			options: [
+				{
+					name: 'HMAC-SHA1',
+					value: 'HMAC-SHA1'
+				},
+				{
+					name: 'HMAC-SHA256',
+					value: 'HMAC-SHA256'
+				},
+			],
+			default: '',
+			required: true,
+		},
+	];
+}