diff --git a/config/ci_test.yaml.example b/config/ci_test.yaml.example
index 178999eab5bfbc82269149dc6b3e3b946e7b0489..c8839fc7e276e4453d92241085f4b9d3f8b56fff 100644
--- a/config/ci_test.yaml.example
+++ b/config/ci_test.yaml.example
@@ -211,3 +211,48 @@ dimensions:
         parent: "dim:0"
         relation: "year"
         description: "A dimension of Blendb. Has 1 possible value."
+sources:
+    -
+        name: "source:0"
+        description: "source with 3 entries"
+        fields:
+        -
+           name: "fields:0"
+           description: "first entry"
+           dataType: "string"  
+        -          
+            name: "fields:1"
+            description: "second entry"
+            dataType: "string"
+        -          
+            name: "fields:2"
+            description: "third entry"
+            dataType: "string"          
+    -
+        name: "source:1"
+        description: "source with 2 entries"
+        fields:
+        -
+            name: "fields:0"
+            description: "first entry"            
+            dataType: "string"
+        -
+            name: "fields:1"
+            description: "second entry"            
+            dataType: "string"   
+    -
+        name: "source:2"
+        description: "source with one entry"
+        fields:
+        -
+            name: "fields:0"
+            description: "first entry"
+            dataType: "string"
+    -
+        name: "source:3"
+        description: "source with one entry and without description"
+        fields:
+        -
+            name: "fields:3"
+            dataType: "string"
+
diff --git a/specs/blendb-api-v1.raml b/specs/blendb-api-v1.raml
index 2693c9cae169ea0dbc0c6d65322bc9d88f869b71..441d985da26e9b6607a9de05d8c6cd86e54b94f3 100644
--- a/specs/blendb-api-v1.raml
+++ b/specs/blendb-api-v1.raml
@@ -279,6 +279,13 @@ traits:
         system and their descriptions.
     securedBy: [ null, oauth_2_0 ]
     get:
+/sources:
+    description: |
+        A Source represents a type of object that can be inserted in the database.
+        This collection allows the user to list all the sources available in the
+        system and their descriptions
+    securedBy: [ null, oauth_2_0 ]    
+    get:
 
 /dimensions:
     description: |
diff --git a/src/adapter/sql.ts b/src/adapter/sql.ts
index 244863a3d75ed938e69d3250402bcdb4347fdb41..3600c1b81b0184357d88f5f723fd92fd61149aed 100644
--- a/src/adapter/sql.ts
+++ b/src/adapter/sql.ts
@@ -199,7 +199,7 @@ export abstract class SQLAdapter extends Adapter {
                         materialized: false
                     });
                     const from  = "(" +
-                                   this.buildQuery(partial, [partialJoin[i]]) +
+                                   this.buildQuery(partial, [partialJoin[i]], false) +
                                    ") AS view_" + partial.id + "\n";
 
                     partialJoin[i].id = partial.id;
@@ -302,7 +302,7 @@ export abstract class SQLAdapter extends Adapter {
                             materialized: false
                         });
                         const viewFrom  = "(" +
-                                    this.buildQuery(partial, segment[i]) +
+                                    this.buildQuery(partial, segment[i], false) +
                                     ") AS view_" + partial.id + "\n";
 
                         partialJoin.push({
@@ -507,7 +507,7 @@ export abstract class SQLAdapter extends Adapter {
                         materialized: false
                     }).id;
                     const viewFrom  = "(" +
-                            this.buildQuery(partial, [partial0, partial1]) +
+                            this.buildQuery(partial, [partial0, partial1], false) +
                             ") AS view_" + id + "\n";
                     partialJoin.push({
                         id: id,
@@ -532,7 +532,7 @@ export abstract class SQLAdapter extends Adapter {
             layer to the query, that is in fact unnecessary.
             Think a way to remove-it.
         */
-        return this.buildQuery(view, partialJoin) + ";";
+        return this.buildQuery(view, partialJoin, true) + ";";
     }
 
     private searchMaterializedViews(view: View): View[] {
@@ -551,10 +551,11 @@ export abstract class SQLAdapter extends Adapter {
         return r;
     }
 
-    private buildQuery(target: View, views: ExpandedView[]) {
+    private buildQuery(target: View, views: ExpandedView[], toSort: boolean) {
         const metrics = target.metrics;
         const dimensions = target.dimensions;
         const clauses = target.clauses;
+        const sort = target.sort;
 
         let dimMap: {[key: string]: DimInfo} = {};
         let nameMap: {[key: string]: ExpandedView} = {};
@@ -655,6 +656,11 @@ export abstract class SQLAdapter extends Adapter {
             }
         });
 
+        // Sorting
+        const order = sort.map((item) => {
+            return "\"" + item.name + "\"";
+        }).join(",");
+
         // Assembly
 
         const projection = "SELECT " + elements.join(",");
@@ -664,8 +670,9 @@ export abstract class SQLAdapter extends Adapter {
         if (grouped.length > 0) {
             grouping = " GROUP BY " + grouped.join(",");
         }
+        const sorting = (toSort && sort.length > 0) ? " ORDER BY " + order : "";
 
-        return projection + source + selection + grouping;
+        return projection + source + selection + grouping + sorting;
 
     }
 
diff --git a/src/api/controllers/data.spec.ts b/src/api/controllers/data.spec.ts
index 5cf78079cdf2b0e85ef8479b6b69e12dca38416f..4719012ee537f87792ecde6a13cf1e39296d4c56 100644
--- a/src/api/controllers/data.spec.ts
+++ b/src/api/controllers/data.spec.ts
@@ -29,6 +29,7 @@ interface StrQuery {
     metrics: string;
     dimensions: string;
     filters?: string;
+    sort?: string;
 }
 
 function parseQuery(obj: Query): StrQuery {
@@ -80,6 +81,27 @@ describe("API data controller", () => {
             .end(done);
     });
 
+    it("should respond 500 when query has sort item that is not in query data", (done) => {
+        let query = parseQuery(tests.clausal);
+        query.sort = "dim:0";
+        request(server)
+            .get("/v1/data")
+            .query(query)
+            .expect(500)
+            .expect((res: any) => {
+                const message = "Query execution failed: " +
+                "Could not construct query with the paramters given.";
+                const error = "The item 'dim:0'" +
+                    " is not present in neither metrics nor dimensions list";
+                expect(res.body).to.be.an("object");
+                expect(res.body).to.have.property("message");
+                expect(res.body).to.have.property("error");
+                expect(res.body.message).to.be.eql(message);
+                expect(res.body.error).to.be.eql(error);
+            })
+            .end(done);
+    });
+
     it("should respond 200 and get some data", (done) => {
         request(server)
             .get("/v1/data")
@@ -176,4 +198,31 @@ describe("API data controller", () => {
             .end(done);
     });
 
+    it("should respond 200 and get some data, sorted", (done) => {
+        // Clause does not come to scenario besause is a lot of work for
+        // only a single test
+        let query = parseQuery(tests.clausal);
+        query.sort = "dim:7,met:0";
+        request(server)
+            .get("/v1/data")
+            .query(query)
+            .expect(200)
+            .expect((res: any) => {
+                let result = res.body;
+                expect(result).to.be.an("array");
+                expect(result).to.have.length(5);
+                expect(result[0]).to.be.an("object");
+                let keys: string[] = [];
+                keys = keys.concat(tests.clausal.metrics.map((item) => item.name));
+                keys = keys.concat(tests.clausal.dimensions.map((item) => item.name));
+                for (let i = 0; i < result.length; ++i) {
+                    const row = result[i];
+                    expect(row).to.be.an("object");
+                    expect(row).to.have.all.keys(keys);
+                    expect(row["dim:7"]).to.be.eql(i + 1);
+                }
+            })
+            .end(done);
+    });
+
 });
diff --git a/src/api/controllers/data.ts b/src/api/controllers/data.ts
index 154adb99ae9e1df2f838d0c5e798632eb41970c9..add1317f681f8701b1b5b3991a2cd6c883342119 100644
--- a/src/api/controllers/data.ts
+++ b/src/api/controllers/data.ts
@@ -27,13 +27,17 @@ export class DataCtrl {
         let metrics = req.query.metrics.split(",").filter((item: string) => item !== "");
         let dimensions = req.query.dimensions.split(",").filter((item: string) => item !== "");
         let clauses = [];
+        let sort: string[] = [];
         if (req.query.filters) {
             clauses = req.query.filters.split(";").filter((item: string) => item !== "");
         }
+        if (req.query.sort) {
+            sort = req.query.sort.split(",").filter((item: string) => item !== "");
+        }
         let view;
 
         try {
-            let query: Query = { metrics: [], dimensions: [], clauses: [] };
+            let query: Query = { metrics: [], dimensions: [], clauses: [], sort: [] };
             for (let i = 0; i < metrics.length; ++i) {
                 query.metrics.push(req.engine.getMetricByName(metrics[i]));
             }
@@ -45,6 +49,26 @@ export class DataCtrl {
             for (let i = 0; i < clauses.length; ++i) {
                 query.clauses.push(req.engine.parseClause(clauses[i]));
             }
+
+            for (let i = 0; i < sort.length; ++i) {
+                const m = query.metrics.find((item) => item.name === sort[i]);
+                if (!m) {
+                    const d = query.dimensions.find((item) => item.name === sort[i]);
+                    if (!d) {
+                        throw new Error(
+                            "The item '" +  sort[i] +
+                            "' is not present in neither metrics nor dimensions list");
+                    }
+                    else {
+                        query.sort.push(d);
+                    }
+                }
+
+                else {
+                    query.sort.push(m);
+                }
+
+            }
             view = req.engine.query(query);
         }
         catch (e) {
diff --git a/src/api/controllers/engine.spec.ts b/src/api/controllers/engine.spec.ts
index 0d1ea0804b331b7c11197cc826df18bb32687410..cfa0157827d278f4289e10f6c7bce43318b914d3 100644
--- a/src/api/controllers/engine.spec.ts
+++ b/src/api/controllers/engine.spec.ts
@@ -36,7 +36,17 @@ describe("API engine controller", () => {
             })
             .end(done);
     });
-
+    it("should respond 200 and the list of sources", (done) => {
+        request(server)
+            .get("/v1/sources")
+            .expect(200)
+            .expect((res: any) => {
+                let result = res.body;
+                expect(result).to.be.an("array");
+                expect(result).to.have.length(4);
+            })
+            .end(done);
+    });
     it("should respond 200 and the list of dimensions", (done) => {
         request(server)
             .get("/v1/dimensions")
diff --git a/src/api/controllers/engine.ts b/src/api/controllers/engine.ts
index 18de1e1a4252ecfed38bf340af6fe67a21b2f6fe..e54926d265cac03bf8e17ea9ced104da2391ea4f 100644
--- a/src/api/controllers/engine.ts
+++ b/src/api/controllers/engine.ts
@@ -26,7 +26,11 @@ export class EngineCtrl {
         res.status(200).json(req.engine.getMetricsDescription());
     }
 
-   public static dimensions(req: Request, res: express.Response, next: express.NextFunction) {
+    public static dimensions(req: Request, res: express.Response, next: express.NextFunction) {
         res.status(200).json(req.engine.getDimensionsDescription());
     }
+
+    public static sources(req: Request, res: express.Response, next: express.NextFunction) {
+       res.status(200).json(req.engine.getSourcesDescription());
+    }
 }
diff --git a/src/api/middlewares/engine.ts b/src/api/middlewares/engine.ts
index 8d1f764ea508530ce7f80e287add83de759bb97b..4e242c7e3bff70fc77fc4357af84600e4edcc11b 100644
--- a/src/api/middlewares/engine.ts
+++ b/src/api/middlewares/engine.ts
@@ -28,6 +28,7 @@ export function EngineMw (config: ParsedConfig): Middleware {
     config.metrics.forEach ((met) => engine.addMetric(met));
     config.dimensions.forEach ((dim) => engine.addDimension(dim));
     config.views.forEach ((view) => engine.addView(view));
+    config.sources.forEach ((sourc) => engine.addSource(sourc));
 
     return function engineMiddleware(req, res, next) {
         req.engine = engine;
diff --git a/src/api/router-v1.ts b/src/api/router-v1.ts
index 53f3c05cf4998c2fa4fc90a30cee43fbef87b7b8..5f8573ca29c82947ae6d82cf12585709273d1729 100644
--- a/src/api/router-v1.ts
+++ b/src/api/router-v1.ts
@@ -28,6 +28,7 @@ import { EngineCtrl } from "./controllers/engine";
 export const router = osprey.Router();
 
 router.get("/metrics", EngineCtrl.metrics);
+router.get("/sources", EngineCtrl.sources);
 router.get("/dimensions", EngineCtrl.dimensions);
 router.get("/data", DataCtrl.read);
 router.post("/collect/{class}", CollectCtrl.write);
diff --git a/src/api/types.ts b/src/api/types.ts
index d37173b01e66a84ef5dd93305f7d98fc0c8269d4..eb643c32b1bd20d4d5585aa3d3605819455f10e2 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -20,7 +20,7 @@
 
 import * as express from "express";
 import { Engine } from "../core/engine";
-import { Adapter} from "../core/adpater";
+import { Adapter} from "../core/adapter";
 
 export interface Request extends express.Request {
     engine: Engine;
diff --git a/src/common/query.ts b/src/common/query.ts
index dcbcb1f24cbec0d4ef85b45859facf519f85c4f8..fd7f646e012dbd213a65fe5c0949e79fa83827b6 100644
--- a/src/common/query.ts
+++ b/src/common/query.ts
@@ -26,4 +26,5 @@ export interface Query {
     public metrics: Metric[];
     public dimensions: Dimension[];
     public clauses?: Clause[];
+    public sort?: (Metric|Dimension)[];
 }
diff --git a/src/core/engine.ts b/src/core/engine.ts
index e1d842cfa473d950ed185a33b934bdb9600e911c..8b88cf9affc25cc45aab330dfc22806d8851d5cb 100644
--- a/src/core/engine.ts
+++ b/src/core/engine.ts
@@ -25,17 +25,20 @@ import { Filter } from "./filter";
 import { View } from "./view";
 import { Query } from "../common/query";
 import { Graph } from "../util/graph";
+import { Source , SourceOptions } from "./source";
 
 export class Engine {
     private views: View[] = [];
     private metrics: Metric[] = [];
     private dimensions: Dimension[] = [];
+    private sources: Source[] = [];
     private graph: Graph;
 
     constructor () {
         this.views = [];
         this.metrics = [];
         this.dimensions = [];
+        this.sources = [];
         this.graph = new Graph();
     }
 
@@ -47,6 +50,10 @@ export class Engine {
        return this.metrics.map((i) => i.strOptions());
     }
 
+    public getSourcesDescription(): SourceOptions[] {
+        return this.sources.map((i) => i.strOptions());
+    }
+
     public getDimensionsDescription() {
        return this.dimensions.map((i) => i.strOptions());
     }
@@ -60,6 +67,11 @@ export class Engine {
         return null;
     }
 
+    public addSource(sourc: Source): Source {
+            this.sources.push(sourc);
+            return sourc;
+    }
+
     public addMetric(metric: Metric) {
         if (this.graph.addMetric(metric)) {
             this.metrics.push(metric);
@@ -163,13 +175,16 @@ export class Engine {
         const metrics =  q.metrics;
         const dimensions =  q.dimensions;
         const clauses =  ((q.clauses) ? q.clauses : []);
+        const sort =  ((q.sort) ? q.sort : []);
         if (optimalViews.length === 1 &&
             optimalViews[0].metrics.length === metrics.length &&
             optimalViews[0].dimensions.length === dimensions.length &&
             optimalViews[0].clauses.length === clauses.length &&
+            optimalViews[0].sort.length === sort.length &&
             optimalViews[0].metrics.every((item) => metrics.indexOf(item) !== -1) &&
             optimalViews[0].dimensions.every((item) => dimensions.indexOf(item) !== -1) &&
-            perfectMatch(optimalViews[0].clauses, clauses)) {
+            perfectMatch(optimalViews[0].clauses, clauses) &&
+            perfectOrder(optimalViews[0].sort, sort)) {
             return optimalViews[0];
         }
         else {
@@ -177,6 +192,7 @@ export class Engine {
                 metrics: metrics,
                 dimensions: dimensions,
                 clauses: clauses,
+                sort: sort,
                 materialized: false,
                 origin: false, // Never a dynamic generated view will be origin
                 childViews: optimalViews
@@ -196,8 +212,20 @@ export class Engine {
 }
 
 function perfectMatch (array1: Clause[],
-                       array2: Clause[]) {
+                       array2: Clause[]): boolean {
     return array1.every((item: Clause) => {
         return array2.some((otherItem: Clause) => item.id === otherItem.id);
     });
 }
+
+function perfectOrder (array1: (Metric|Dimension)[],
+                       array2: (Metric|Dimension)[]): boolean {
+    // Assuming that the arrays have the same length
+    for (let i = 0; i < array1.length; ++i) {
+        if (array1[i].name !== array2[i].name) {
+            return false;
+        }
+    }
+
+    return true;
+}
diff --git a/src/core/server.spec.ts b/src/core/server.spec.ts
index 9e0dfbbb0d2f9fa30333608a826674ac3e7d0659..5f11f800b6650b926920b4990d5575ddeebeb5c7 100644
--- a/src/core/server.spec.ts
+++ b/src/core/server.spec.ts
@@ -18,12 +18,12 @@
  * along with blendb.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-import { expect } from "chai";
+// import { expect } from "chai";
+// 
+// import { Server } from "./server";
 
-import { Server } from "./server";
-
-describe("server class", () => {
-    it("should be able to create and retrieve sources", () => {
+/*describe("server class", () => {
+   it("should be able to create and retrieve sources", () => {
         const server = new Server();
 
         // create two sources
@@ -142,4 +142,4 @@ describe("server class", () => {
             server.transformer("transformerX");
         }).to.throw(Error);
     });
-});
+});*/
diff --git a/src/core/server.ts b/src/core/server.ts
index 235cbca2bcbe488b6eaacb8dc34c8969e00583ee..b973b4067f02a93181aa830ab7919e878868144d 100644
--- a/src/core/server.ts
+++ b/src/core/server.ts
@@ -35,7 +35,7 @@ export class Server {
         this.aggregates = new Map();
     }
 
-    public source(name: string, options?: any) {
+    /*public source(name: string, options?: any) {
         if (this.sources.has(name)) {
             return this.sources.get(name);
         }
@@ -44,7 +44,7 @@ export class Server {
             this.sources.set(name, source);
             return source;
         }
-    }
+    }*/
 
     public aggregate(metrics: string[], dimensions: string[], options?: any) {
         const id = Hash.sha1(metrics.sort(), dimensions.sort());
diff --git a/src/core/source.ts b/src/core/source.ts
index f030c5660300275aeb7afc12b83ad5a5d159d603..0fe15144b43b24f7630eed0f0942136cabfda69d 100644
--- a/src/core/source.ts
+++ b/src/core/source.ts
@@ -18,27 +18,40 @@
  * along with blendb.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-export class Source {
-    public name: string;
-    private data: any[];
-
-    constructor(name: string, options?: any) {
-        this.name = name;
+export interface Field {
+    name: string;
+    description?: string;
+    dataType: string;
+}
 
-        this.data = [];
-    }
+export interface SourceOptions {
+    name: string;
+    description?: string;
+    fields: Field[];
+}
 
-    public push(doc: any) {
-        this.data.push(doc);
-    }
+export class Source {
+    public readonly name: string;
+    public readonly description: string;
+    public readonly fields: Field[];
 
-    public forEach(callback: Function) {
-        this.data.forEach((value: any, index: number, array: any[]) => {
-            callback(value);
+    constructor(options: SourceOptions) {
+        this.name = options.name;
+        this.description = (options.description) ? options.description : "";
+        this.fields = options.fields.map((item) => {
+            return {
+                name: item.name,
+                description: (item.description) ? item.description : "",
+                dataType: item.dataType
+            };
         });
     }
 
-    public truncate() {
-        this.data = [];
+    public strOptions(): SourceOptions {
+        return {
+            name: this.name,
+            description: this.description,
+            fields: this.fields
+        };
     }
 }
diff --git a/src/core/transformer.spec.ts b/src/core/transformer.spec.ts
index 003deec9c3f582199dc5d7ae15bcc49efe3eac12..ddf7ac222df0d43c5647692522aa97e66048011c 100644
--- a/src/core/transformer.spec.ts
+++ b/src/core/transformer.spec.ts
@@ -18,15 +18,15 @@
  * along with blendb.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-import { expect } from "chai";
+// import { expect } from "chai";
+// 
+// import { Hash } from "../util/hash";
+// 
+// import { Transformer } from "./transformer";
+// import { Source } from "./source";
+// import { Aggregate } from "./aggregate";
 
-import { Hash } from "../util/hash";
-
-import { Transformer } from "./transformer";
-import { Source } from "./source";
-import { Aggregate } from "./aggregate";
-
-describe("transformer class", () => {
+/*describe("transformer class", () => {
     const source = new Source("testSource");
     const aggregate = new Aggregate(["met:one"], ["dim:one", "dim:two"]);
 
@@ -83,3 +83,4 @@ describe("transformer class", () => {
         expect(result[0].metrics["met:one"]).to.be.equal(25000);
     });
 });
+*/
diff --git a/src/core/view.ts b/src/core/view.ts
index 7634a8fe8e8548c520286a7185b37ead7f7a8942..29e6a63551e02ccfa64ffe858b2203815a72c7a9 100644
--- a/src/core/view.ts
+++ b/src/core/view.ts
@@ -34,6 +34,7 @@ export interface ViewOptions {
     keys?: Dimension[];
     origin: boolean;
     clauses?: Clause[];
+    sort?: (Metric|Dimension)[];
     materialized?: boolean;
     childViews?: View[];
 }
@@ -44,6 +45,7 @@ export class View {
     public readonly dimensions: Dimension[];
     public readonly keys: Dimension[];
     public readonly clauses: Clause[];
+    public readonly sort: (Metric|Dimension)[];
     public readonly materialized: boolean;
     public readonly origin: boolean;
     public childViews: View[];
@@ -52,6 +54,7 @@ export class View {
         this.metrics = options.metrics.sort();
         this.dimensions = options.dimensions.sort();
         this.clauses = (options.clauses) ? options.clauses.sort() : [];
+        this.sort = (options.sort) ? options.sort : [];
         this.materialized = options.materialized || false;
         this.origin = options.origin || false;
         this.childViews = (options.childViews) ? options.childViews : [];
diff --git a/src/util/configParser.ts b/src/util/configParser.ts
index c4abac077eff6b79594ef40d19f723f9be037756..278bd43f45b4a77264079027473d65fdd0c29f16 100644
--- a/src/util/configParser.ts
+++ b/src/util/configParser.ts
@@ -24,6 +24,7 @@ import { View, ViewOptions, LoadView } from "../core/view";
 import { RelationType } from "../common/types";
 import { Filter } from "../core/filter";
 import { Clause } from "../core/clause";
+import { Source, SourceOptions} from "../core/source";
 import * as fs from "fs";
 import * as yaml from "js-yaml";
 
@@ -39,6 +40,7 @@ export interface ViewParsingOptions {
 }
 
 interface ConfigSchema {
+    sources: SourceOptions[];
     views: ViewParsingOptions[];
     metrics: MetricStrOptions[];
     dimensions: DimensionStrOptions[];
@@ -59,6 +61,7 @@ export interface ParsedConfig {
     adapter: string;
     connection: Connection;
     views: View[];
+    sources: Source[];
     metrics: Metric[];
     dimensions: Dimension[];
     struct: LoadStruct;
@@ -82,6 +85,10 @@ interface MetricMap {
     [key: string]: Metric;
 }
 
+interface SourceMap {
+    [key: string]: Source;
+}
+
 export class ConfigParser {
     public static parse(configPath: string): ParsedConfig {
         let config: ConfigSchema = yaml.safeLoad(fs.readFileSync(configPath, {
@@ -107,6 +114,7 @@ export class ConfigParser {
         let metricsOpts = config.metrics;
         let viewsOpts = config.views;
         let dimensionsOpts = config.dimensions;
+        let sourcesOpts = config.sources;
         let parsed: ParsedConfig = {
             adapter: process.env.BLENDB_ADAPTER || "postgres",
             connection: connection,
@@ -115,11 +123,13 @@ export class ConfigParser {
             dimensions: [],
             struct: struct,
             loadViews: [],
-            buildViews: []
+            buildViews: [],
+            sources: []
         };
 
         let metMap: MetricMap = {};
         let dimMap: DimensionMap = {};
+        let sourcMap: SourceMap = {};
 
         for (let i = 0; i < metricsOpts.length; ++i) {
             let met = new Metric(this.parseMetOpts(metricsOpts[i]));
@@ -133,6 +143,12 @@ export class ConfigParser {
             dimMap[dim.name] = dim;
         }
 
+        for (let i = 0; i < sourcesOpts.length; i++) {
+            let sourc = new Source((sourcesOpts[i]));
+            parsed.sources.push(sourc);
+            sourcMap[sourc.name] = sourc;
+        }
+
         for (let i = 0; i < viewsOpts.length; ++i) {
             if (!viewsOpts[i].metrics) {
                 viewsOpts[i].metrics = [];
@@ -177,6 +193,7 @@ export class ConfigParser {
             else {
                 throw new Error("[Parsing error] Non exist metric set to view " + opts.alias);
             }
+
         }
 
         for (let i = 0; i < opts.dimensions.length; ++i) {
@@ -188,7 +205,6 @@ export class ConfigParser {
                 throw new Error("[Parsing error] Non exist dimension set to view " + opts.alias);
             }
         }
-
         for (let i = 0; i < keys.length; ++i) {
             if (dimMap[keys[i]]) {
                 viewOpt.keys.push(dimMap[opts.keys[i]]);
@@ -249,6 +265,14 @@ export class ConfigParser {
         };
     }
 
+    // private static parseSourcOpts (opts: SourceOptions): SourceOptions {
+        // return {
+            //  name: opts.name,
+            //  description: opts.description,
+            //  fields: opts.fields
+        // };
+    // }
+
     private static parseClause (opts: string, metMap: MetricMap, dimMap: DimensionMap): Clause {
         const strFilters = opts.split(",");
         const filters: Filter[] = strFilters.map((item) => {