Add entry and api back

__sdk__.js

@@ -58,6 +58,9 @@ module.exports = {
     fundingSources: SMART_FUNDING_SOURCES,
     cards: SMART_CARDS,
   },
+  "shopper-insights": {
+    entry: "./src/api/shopper-insights/interface",
+  },
   wallet: {
     entry: "./src/interface/wallet",
     globals,

src/api/api.js

@@ -0,0 +1,69 @@
+/* @flow */
+
+import { getPartnerAttributionID, getSessionID } from "@paypal/sdk-client/src";
+import { inlineMemoize, request } from "@krakenjs/belter/src";
+import { ZalgoPromise } from "@krakenjs/zalgo-promise/src";
+
+import { HEADERS } from "../constants/api";
+
+type RestAPIParams = {|
+  method?: string,
+  url: string,
+  data: Object,
+  accessToken: ?string,
+|};
+
+// TODO: for the fingerprint work we should swap this out for fetch support
+// we did not get the time for doing this during the initial project
+function callRestAPI({
+  accessToken,
+  method,
+  url,
+  data,
+}: RestAPIParams): ZalgoPromise<Object> {
+  const partnerAttributionID = getPartnerAttributionID() || "";
+
+  if (!accessToken) {
+    throw new Error(`No access token passed to API request ${url}`);
+  }
+
+  const requestHeaders = {
+    [HEADERS.AUTHORIZATION]: `Bearer ${accessToken}`,
+    [HEADERS.CONTENT_TYPE]: `application/json`,
+    [HEADERS.PARTNER_ATTRIBUTION_ID]: partnerAttributionID,
+    [HEADERS.CLIENT_METADATA_ID]: getSessionID(),
+  };
+
+  return request({
+    method,
+    url,
+    headers: requestHeaders,
+    json: data,
+  }).then(({ status, body, headers: responseHeaders }) => {
+    if (status >= 300) {
+      const error = new Error(
+        `${url} returned status ${status}\n\n${JSON.stringify(body)}`
+      );
+
+      // $FlowFixMe
+      error.response = { status, headers: responseHeaders, body };
+
+      throw error;
+    }
+
+    return body;
+  });
+}
+
+export function callMemoizedRestAPI({
+  accessToken,
+  method,
+  url,
+  data,
+}: RestAPIParams): ZalgoPromise<Object> {
+  return inlineMemoize(
+    callMemoizedRestAPI,
+    () => callRestAPI({ accessToken, method, url, data }),
+    [accessToken, method, url, JSON.stringify(data)]
+  );
+}