fix: pass client metadata to server (#95)

Author: ao-anam

src/lib/ClientError.ts

@@ -1,3 +1,4 @@
+import { CLIENT_METADATA } from './constants';
 export enum ErrorCode {
   CLIENT_ERROR_CODE_USAGE_LIMIT_REACHED = 'CLIENT_ERROR_CODE_USAGE_LIMIT_REACHED',
   CLIENT_ERROR_CODE_VALIDATION_ERROR = 'CLIENT_ERROR_CODE_VALIDATION_ERROR',
@@ -72,6 +73,7 @@ export class ClientError extends Error {
     sendErrorMetric('client_error', code, {
       details,
       statusCode,
+      ...CLIENT_METADATA,
     });
   }
 }

src/lib/constants.ts

@@ -1,3 +1,5 @@
+import { version } from '../../package.json';
+
 // Core API
 export const DEFAULT_HEADERS = {
   'Content-Type': 'application/json',
@@ -14,3 +16,8 @@ export const CONNECTION_CLOSED_CODE_SIGNALLING_CLIENT_CONNECTION_FAILURE =
   'CONNECTION_CLOSED_CODE_SIGNALLING_CLIENT_CONNECTION_FAILURE';
 export const CONNECTION_CLOSED_CODE_WEBRTC_FAILURE =
   'CONNECTION_CLOSED_CODE_WEBRTC_FAILURE';
+
+export const CLIENT_METADATA = {
+  client: 'js-sdk',
+  version,
+};

src/modules/CoreApiRestClient.ts

@@ -1,5 +1,9 @@
 import { ClientError, ErrorCode } from '../lib/ClientError';
-import { DEFAULT_API_BASE_URL, DEFAULT_API_VERSION } from '../lib/constants';
+import {
+  CLIENT_METADATA,
+  DEFAULT_API_BASE_URL,
+  DEFAULT_API_VERSION,
+} from '../lib/constants';
 import {
   CoreApiRestClientOptions,
   PersonaConfig,
@@ -40,7 +44,6 @@ export class CoreApiRestClient {
           400,
         );
       }
-      // TODO: why do we need to get the unsafe session token here?
       this.sessionToken = await this.unsafe_getSessionToken(personaConfig);
     }
 
@@ -51,7 +54,11 @@ export class CoreApiRestClient {
           'Content-Type': 'application/json',
           Authorization: `Bearer ${this.sessionToken}`,
         },
-        body: JSON.stringify({ personaConfig, sessionOptions }),
+        body: JSON.stringify({
+          personaConfig,
+          sessionOptions,
+          clientMetadata: CLIENT_METADATA,
+        }),
       });
 
       const data = await response.json();