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With JayStack OData v4 Server you can build your own data endpoints without the hassle of implementing any protocol-level code. This framework binds OData v4 requests to your annotated controller functions, and compiles OData v4 compatible response. Clients can access services through OData-compliant HTTP requests. We recommend the JayData libra…
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src Fix query/filter param visitor base type Jul 20, 2018
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README.md

JayStack OData V4 Server

OData V4 server for node.js

Features

  • OASIS Standard OData Version 4.0 server
  • usable as a standalone server, as an Express router, as a node.js stream or as a library
  • expose service document and service metadata - $metadata
  • setup metadata using decorators or metadata JSON
  • supported data types are Edm primitives, complex types, navigation properties
  • support create, read, update, and delete entity sets, action imports, function imports, collection and entity bound actions and functions
  • support for full OData query language using odata-v4-parser
    • filtering entities - $filter
    • sorting - $orderby
    • paging - $skip and $top
    • projection of entities - $select
    • expanding entities - $expand
    • $count
  • support sync and async controller functions
  • support async controller functions using Promise, async/await or ES6 generator functions
  • support result streaming
  • support media entities

Controller and server functions parameter injection decorators

  • @odata.key
  • @odata.filter
  • @odata.query
  • @odata.context
  • @odata.body
  • @odata.result
  • @odata.stream

Example Northwind server

export class ProductsController extends ODataController{
    @odata.GET
    find(@odata.filter filter:ODataQuery){
        if (filter) return products.filter(createFilter(filter));
        return products;
    }

    @odata.GET
    findOne(@odata.key key:string){
        return products.filter(product => product._id == key)[0];
    }

    @odata.POST
    insert(@odata.body product:any){
        product._id = new ObjectID().toString();
        products.push(product);
        return product;
    }

    @odata.PATCH
    update(@odata.key key:string, @odata.body delta:any){
        let product = products.filter(product => product._id == key)[0];
        for (let prop in delta){
            product[prop] = delta[prop];
        }
    }

    @odata.DELETE
    remove(@odata.key key:string){
        products.splice(products.indexOf(products.filter(product => product._id == key)[0]), 1);
    }
}

export class CategoriesController extends ODataController{
    @odata.GET
    find(@odata.filter filter:ODataQuery){
        if (filter) return categories.filter(createFilter(filter));
        return categories;
    }

    @odata.GET
    findOne(@odata.key key:string){
        return categories.filter(category => category._id == key)[0];
    }

    @odata.POST
    insert(@odata.body category:any){
        category._id = new ObjectID().toString();
        categories.push(category);
        return category;
    }

    @odata.PATCH
    update(@odata.key key:string, @odata.body delta:any){
        let category = categories.filter(category => category._id == key)[0];
        for (let prop in delta){
            category[prop] = delta[prop];
        }
    }

    @odata.DELETE
    remove(@odata.key key:string){
        categories.splice(categories.indexOf(categories.filter(category => category._id == key)[0]), 1);
    }
}

@odata.cors
@odata.controller(ProductsController, true)
@odata.controller(CategoriesController, true)
export class NorthwindODataServer extends ODataServer{}
NorthwindODataServer.create("/odata", 3000);
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