Estructura inicial del proyecto

backend/node_modules/jsonwebtoken/decode.js

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+var jws = require('jws');
+
+module.exports = function (jwt, options) {
+  options = options || {};
+  var decoded = jws.decode(jwt, options);
+  if (!decoded) { return null; }
+  var payload = decoded.payload;
+
+  //try parse the payload
+  if(typeof payload === 'string') {
+    try {
+      var obj = JSON.parse(payload);
+      if(obj !== null && typeof obj === 'object') {
+        payload = obj;
+      }
+    } catch (e) { }
+  }
+
+  //return header if `complete` option is enabled.  header includes claims
+  //such as `kid` and `alg` used to select the key within a JWKS needed to
+  //verify the signature
+  if (options.complete === true) {
+    return {
+      header: decoded.header,
+      payload: payload,
+      signature: decoded.signature
+    };
+  }
+  return payload;
+};