diff --git a/lib/configuration/hooks/jsonapi/helpers/request.js b/lib/configuration/hooks/jsonapi/helpers/request.js
index 6828cc4db5..bc6c3d7fc3 100644
--- a/lib/configuration/hooks/jsonapi/helpers/request.js
+++ b/lib/configuration/hooks/jsonapi/helpers/request.js
@@ -6,6 +6,7 @@
 
 // Public node modules.
 const _ = require('lodash');
+const utils = require('../utils/utils');
 
 /**
  * JSON API helper
@@ -19,78 +20,127 @@ module.exports = {
    * Parse request
    */
 
-  parse: function * (ctx, cb) {
+  parse: function * (ctx) {
     switch (ctx.method.toUpperCase()) {
       case 'GET':
         console.log('GET');
         break;
-      case 'PUT':
+      case 'PATCH':
       case 'POST':
-        yield this.fetchSchema(ctx, function * (err) {
-          yield cb(err);
-        });
+        try {
+          yield this.fetchSchema(ctx);
+          yield this.formatBody(ctx);
+        } catch (err) {
+          throw err;
+        }
         break;
       case 'DELETE':
         console.log('DELETE');
         break;
       default:
+        throw {
+          status: 403,
+          body: 'Invalid HTTP method'
+        };
     }
   },
 
+  /**
+   * Format attributes for more simple API
+   */
+
+  formatBody: function * (ctx) {
+    const body = ctx.request.body;
+    const values = _.assign({}, body.data.attributes);
+
+    _.forEach(body.data.relationships, function (relation, key) {
+      values[key] = _.isArray(relation.data) ? _.map(relation.data, 'id') : relation.data.id;
+    });
+
+    ctx.request.body = values;
+  },
+
   /**
    * Fetch attributes schema
    */
 
-  fetchSchema: function * (ctx, cb) {
-    const attributes = ctx.request.body;
+  fetchSchema: function * (ctx) {
+    const body = ctx.request.body;
 
-    if (!attributes.hasOwnProperty('data')) {
-      return yield cb({
+    if (!body.hasOwnProperty('data')) {
+      throw {
         status: 403,
         body: 'Missing `data` member'
-      });
-    } else if (!attributes.data.hasOwnProperty('type')) {
-      return yield cb({
+      };
+    } else if (!utils.isRessourceObject(body.data) && ctx.method !== 'POST') {
+      throw {
         status: 403,
-        body: 'Missing `type` member'
-      });
-    } else if (!strapi.models.hasOwnProperty(attributes.data.type)) {
-      return yield cb({
+        body: 'Invalid ressource object'
+      };
+    } else if (!body.data.hasOwnProperty('type') && ctx.method === 'POST') {
+      throw {
         status: 403,
-        body: 'Unknow `type` ' + attributes.data.type
-      });
+        body: 'Invalid ressource object'
+      };
+    } else if (!strapi.models.hasOwnProperty(body.data.type)) {
+      throw {
+        status: 403,
+        body: 'Unknow `type` ' + body.data.type
+      };
     }
 
     // Extract required attributes
-    const requiredAttributes = _.omit(_.mapValues(strapi.models[attributes.data.type].attributes, function (attr) {
-      return attr.required ? attr : undefined;
+    const requiredAttributes = _.omit(_.mapValues(strapi.models[body.data.type].attributes, function (attr) {
+      return (attr.required && attr.type) ? attr : undefined;
     }), _.isUndefined);
     // Identify missing attributes
-    const missingAttributes = _.difference(_.keys(requiredAttributes), _.keys(attributes.data.attributes));
+    const missingAttributes = body.data.hasOwnProperty('attributes') ? _.difference(_.keys(requiredAttributes), _.keys(body.data.attributes)) : null;
 
     if (!_.isEmpty(missingAttributes)) {
-      return yield cb({
+      throw {
         status: 403,
         body: 'Missing required attributes (' + missingAttributes.toString() + ')'
-      });
+      };
     }
 
-    // Identify required relationships
-    const relationships = _.indexBy(strapi.models[attributes.data.type].associations, 'alias');
     // Extract required relationships
-    const requiredRelationships = _.intersection(_.keys(requiredAttributes), _.keys(relationships));
+    const requiredRelationships = _.omit(_.mapValues(strapi.models[body.data.type].attributes, function (attr) {
+      return (attr.required && (attr.model || attr.collection)) ? attr : undefined;
+    }), _.isUndefined);
     // Identify missing relationships
-    const missingRelationships = _.difference(_.keys(requiredRelationships), _.keys(attributes.data.relationships));
+    const missingRelationships = body.data.hasOwnProperty('relationships') ? _.difference(_.keys(requiredRelationships), _.keys(body.data.relationships)) : null;
 
     if (!_.isEmpty(missingRelationships)) {
-      return yield cb({
+      throw {
         status: 403,
         body: 'Missing required relationships (' + missingRelationships.toString() + ')'
-      });
+      };
     }
 
-    // Looks good
-    yield cb();
+    // Build array of errors
+    if (_.size(requiredRelationships)) {
+      const errors = _.remove(_.flattenDeep(_.map(body.data.relationships, function (relation, key) {
+        if (!relation.hasOwnProperty('data')) {
+          return 'Missing `data` member for relationships ' + relation;
+        } else if (_.isArray(relation.data)) {
+          return _.map(relation.data, function (ressource) {
+            if (!utils.isRessourceObject(ressource)) {
+              return 'Invalid ressource object in relationships ' + key;
+            }
+          });
+        } else if (!utils.isRessourceObject(relation.data)) {
+          return 'Invalid ressource object for relationships ' + key;
+        }
+      })), function (n) {
+        return !_.isUndefined(n);
+      });
 
+      if (!_.isEmpty(errors)) {
+        throw {
+          status: 403,
+          body: errors.toString()
+        };
+      }
+    }
   }
 };
diff --git a/lib/configuration/hooks/jsonapi/helpers/response.js b/lib/configuration/hooks/jsonapi/helpers/response.js
index e437ac1536..40a252d738 100644
--- a/lib/configuration/hooks/jsonapi/helpers/response.js
+++ b/lib/configuration/hooks/jsonapi/helpers/response.js
@@ -178,7 +178,7 @@ module.exports = {
 
     switch (object) {
       case 'collection':
-        if (_.isArray(data) && _.size(data) > 1) {
+        if ((_.isArray(data) && _.size(data) > 1) || _.isObject(data)) {
           return data;
         } else if (_.isArray(data) && (_.size(data) === 1 || _.size(data) === 0)) {
           return _.isObject(_.first(data)) ? _.first(data[0]) : [];
diff --git a/lib/configuration/hooks/jsonapi/index.js b/lib/configuration/hooks/jsonapi/index.js
index 41fcfa7033..ef9feb2340 100644
--- a/lib/configuration/hooks/jsonapi/index.js
+++ b/lib/configuration/hooks/jsonapi/index.js
@@ -45,7 +45,7 @@ module.exports = function (strapi) {
           if (this.request.type !== 'application/vnd.api+json') {
             this.status = 406;
             this.body = '';
-          } else if (this.request.method === 'GET') {
+          } else {
             // Intercept only GET request
 
             // Detect route
@@ -87,15 +87,14 @@ module.exports = function (strapi) {
           this.response.status = 406;
           this.response.body = '';
         } else {
-          yield request.parse(this, function * (err) {
-            if (err) {
-              return _.assign(self.response, err);
-            }
-
+          try {
+            yield request.parse(this);
             yield next;
-          });
+          } catch (err) {
+            _.assign(self.response, err);
+          }
         }
-      }
+      };
     }
   };
 
diff --git a/lib/configuration/hooks/jsonapi/utils/utils.js b/lib/configuration/hooks/jsonapi/utils/utils.js
new file mode 100644
index 0000000000..2294e9093d
--- /dev/null
+++ b/lib/configuration/hooks/jsonapi/utils/utils.js
@@ -0,0 +1,24 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+
+// Public node modules.
+const _ = require('lodash');
+
+/**
+ * JSON API utils
+ */
+
+module.exports = {
+
+  /**
+   * Verify ressource object
+   */
+
+  isRessourceObject: function (object) {
+    return _.isObject(object) && object.hasOwnProperty('id') && object.hasOwnProperty('type');
+  }
+
+};