(Go) Shopify Add a metafield to an existing product

Add a metafield to an existing product

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    rest := chilkat.NewRest()
    var success bool

    rest.SetAuthBasic("SHOPIFY_PRIVATE_API_KEY","SHOPIFY_PRIVATE_API_KEY")

    success = rest.Connect("chilkat.myshopify.com",443,true,true)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        return
    }

    // The following code creates the JSON request body.
    // The JSON created by this code is shown below.
    jsonReq := chilkat.NewJsonObject()
    jsonReq.UpdateNumber("product.id","632910392")
    jsonReq.UpdateString("product.metafields[0].key","new")
    jsonReq.UpdateString("product.metafields[0].value","newvalue")
    jsonReq.UpdateString("product.metafields[0].value_type","string")
    jsonReq.UpdateString("product.metafields[0].namespace","global")

    // The JSON request body created by the above code:

    // {
    //   "product": {
    //     "id": 632910392,
    //     "metafields": [
    //       {
    //         "key": "new",
    //         "value": "newvalue",
    //         "value_type": "string",
    //         "namespace": "global"
    //       }
    //     ]
    //   }
    // }

    sbReq := chilkat.NewStringBuilder()
    jsonReq.EmitSb(sbReq)

    rest.AddHeader("Content-Type","application/json")

    sbJson := chilkat.NewStringBuilder()
    success = rest.FullRequestSb("PUT","/admin/products/#{id}.json",sbReq,sbJson)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        jsonReq.DisposeJsonObject()
        sbReq.DisposeStringBuilder()
        sbJson.DisposeStringBuilder()
        return
    }

    if rest.ResponseStatusCode() != 200 {
        fmt.Println("Received error response code: ", rest.ResponseStatusCode())
        fmt.Println("Response body:")
        fmt.Println(*sbJson.GetAsString())
        rest.DisposeRest()
        jsonReq.DisposeJsonObject()
        sbReq.DisposeStringBuilder()
        sbJson.DisposeStringBuilder()
        return
    }

    json := chilkat.NewJsonObject()
    json.LoadSb(sbJson)

    // The following code parses the JSON response.
    // A sample JSON response is shown below the sample code.
    var productId int
    var productTitle *string = new(string)
    var productBody_html *string = new(string)
    var productVendor *string = new(string)
    var productProduct_type *string = new(string)
    var productCreated_at *string = new(string)
    var productHandle *string = new(string)
    var productUpdated_at *string = new(string)
    var productPublished_at *string = new(string)
    var productTemplate_suffix bool
    var productPublished_scope *string = new(string)
    var productTags *string = new(string)
    var productImageId int
    var productImageProduct_id int
    var productImagePosition int
    var productImageCreated_at *string = new(string)
    var productImageUpdated_at *string = new(string)
    var productImageWidth int
    var productImageHeight int
    var productImageSrc *string = new(string)
    var i int
    var count_i int
    var id int
    var product_id int
    var title *string = new(string)
    var price *string = new(string)
    var sku *string = new(string)
    var position int
    var grams int
    var inventory_policy *string = new(string)
    var compare_at_price bool
    var fulfillment_service *string = new(string)
    var inventory_management *string = new(string)
    var option1 *string = new(string)
    var option2 bool
    var option3 bool
    var created_at *string = new(string)
    var updated_at *string = new(string)
    var taxable bool
    var barcode *string = new(string)
    var image_id int
    var inventory_quantity int
    var weight int
    var weight_unit *string = new(string)
    var old_inventory_quantity int
    var requires_shipping bool
    var name *string = new(string)
    var j int
    var count_j int
    var strVal *string = new(string)
    var width int
    var height int
    var src *string = new(string)
    var intVal int

    productId = json.IntOf("product.id")
    productTitle = json.StringOf("product.title")
    productBody_html = json.StringOf("product.body_html")
    productVendor = json.StringOf("product.vendor")
    productProduct_type = json.StringOf("product.product_type")
    productCreated_at = json.StringOf("product.created_at")
    productHandle = json.StringOf("product.handle")
    productUpdated_at = json.StringOf("product.updated_at")
    productPublished_at = json.StringOf("product.published_at")
    productTemplate_suffix = json.IsNullOf("product.template_suffix")
    productPublished_scope = json.StringOf("product.published_scope")
    productTags = json.StringOf("product.tags")
    productImageId = json.IntOf("product.image.id")
    productImageProduct_id = json.IntOf("product.image.product_id")
    productImagePosition = json.IntOf("product.image.position")
    productImageCreated_at = json.StringOf("product.image.created_at")
    productImageUpdated_at = json.StringOf("product.image.updated_at")
    productImageWidth = json.IntOf("product.image.width")
    productImageHeight = json.IntOf("product.image.height")
    productImageSrc = json.StringOf("product.image.src")
    i = 0
    count_i = json.SizeOfArray("product.variants")
    for i < count_i {
        json.SetI(i)
        id = json.IntOf("product.variants[i].id")
        product_id = json.IntOf("product.variants[i].product_id")
        title = json.StringOf("product.variants[i].title")
        price = json.StringOf("product.variants[i].price")
        sku = json.StringOf("product.variants[i].sku")
        position = json.IntOf("product.variants[i].position")
        grams = json.IntOf("product.variants[i].grams")
        inventory_policy = json.StringOf("product.variants[i].inventory_policy")
        compare_at_price = json.IsNullOf("product.variants[i].compare_at_price")
        fulfillment_service = json.StringOf("product.variants[i].fulfillment_service")
        inventory_management = json.StringOf("product.variants[i].inventory_management")
        option1 = json.StringOf("product.variants[i].option1")
        option2 = json.IsNullOf("product.variants[i].option2")
        option3 = json.IsNullOf("product.variants[i].option3")
        created_at = json.StringOf("product.variants[i].created_at")
        updated_at = json.StringOf("product.variants[i].updated_at")
        taxable = json.BoolOf("product.variants[i].taxable")
        barcode = json.StringOf("product.variants[i].barcode")
        image_id = json.IntOf("product.variants[i].image_id")
        inventory_quantity = json.IntOf("product.variants[i].inventory_quantity")
        weight = json.IntOf("product.variants[i].weight")
        weight_unit = json.StringOf("product.variants[i].weight_unit")
        old_inventory_quantity = json.IntOf("product.variants[i].old_inventory_quantity")
        requires_shipping = json.BoolOf("product.variants[i].requires_shipping")
        i = i + 1
    }

    i = 0
    count_i = json.SizeOfArray("product.options")
    for i < count_i {
        json.SetI(i)
        id = json.IntOf("product.options[i].id")
        product_id = json.IntOf("product.options[i].product_id")
        name = json.StringOf("product.options[i].name")
        position = json.IntOf("product.options[i].position")
        j = 0
        count_j = json.SizeOfArray("product.options[i].values")
        for j < count_j {
            json.SetJ(j)
            strVal = json.StringOf("product.options[i].values[j]")
            j = j + 1
        }

        i = i + 1
    }

    i = 0
    count_i = json.SizeOfArray("product.images")
    for i < count_i {
        json.SetI(i)
        id = json.IntOf("product.images[i].id")
        product_id = json.IntOf("product.images[i].product_id")
        position = json.IntOf("product.images[i].position")
        created_at = json.StringOf("product.images[i].created_at")
        updated_at = json.StringOf("product.images[i].updated_at")
        width = json.IntOf("product.images[i].width")
        height = json.IntOf("product.images[i].height")
        src = json.StringOf("product.images[i].src")
        j = 0
        count_j = json.SizeOfArray("product.images[i].variant_ids")
        for j < count_j {
            json.SetJ(j)
            intVal = json.IntOf("product.images[i].variant_ids[j]")
            j = j + 1
        }

        i = i + 1
    }

    i = 0
    count_i = json.SizeOfArray("image.product.variant_ids")
    for i < count_i {
        json.SetI(i)
        i = i + 1
    }

    // A sample JSON response body that is parsed by the above code:

    // {
    //   "product": {
    //     "id": 632910392,
    //     "title": "IPod Nano - 8GB",
    //     "body_html": "<p>It's the small iPod with one very big idea: Video. Now the world's most popular music player, available in 4GB and 8GB models, lets you enjoy TV shows, movies, video podcasts, and more. The larger, brighter display means amazing picture quality. In six eye-catching colors, iPod nano is stunning all around. And with models starting at just $149, little speaks volumes.<\/p>",
    //     "vendor": "Apple",
    //     "product_type": "Cult Products",
    //     "created_at": "2017-09-22T14:08:02-04:00",
    //     "handle": "ipod-nano",
    //     "updated_at": "2017-09-22T14:48:57-04:00",
    //     "published_at": "2007-12-31T19:00:00-05:00",
    //     "template_suffix": null,
    //     "published_scope": "web",
    //     "tags": "Emotive, Flash Memory, MP3, Music",
    //     "variants": [
    //       {
    //         "id": 808950810,
    //         "product_id": 632910392,
    //         "title": "Pink",
    //         "price": "199.00",
    //         "sku": "IPOD2008PINK",
    //         "position": 1,
    //         "grams": 567,
    //         "inventory_policy": "continue",
    //         "compare_at_price": null,
    //         "fulfillment_service": "manual",
    //         "inventory_management": "shopify",
    //         "option1": "Pink",
    //         "option2": null,
    //         "option3": null,
    //         "created_at": "2017-09-22T14:08:02-04:00",
    //         "updated_at": "2017-09-22T14:48:57-04:00",
    //         "taxable": true,
    //         "barcode": "1234_pink",
    //         "image_id": 562641783,
    //         "inventory_quantity": 10,
    //         "weight": 1.25,
    //         "weight_unit": "lb",
    //         "old_inventory_quantity": 10,
    //         "requires_shipping": true
    //       },
    //       {
    //         "id": 49148385,
    //         "product_id": 632910392,
    //         "title": "Red",
    //         "price": "199.00",
    //         "sku": "IPOD2008RED",
    //         "position": 2,
    //         "grams": 567,
    //         "inventory_policy": "continue",
    //         "compare_at_price": null,
    //         "fulfillment_service": "manual",
    //         "inventory_management": "shopify",
    //         "option1": "Red",
    //         "option2": null,
    //         "option3": null,
    //         "created_at": "2017-09-22T14:08:02-04:00",
    //         "updated_at": "2017-09-22T14:08:02-04:00",
    //         "taxable": true,
    //         "barcode": "1234_red",
    //         "image_id": null,
    //         "inventory_quantity": 20,
    //         "weight": 1.25,
    //         "weight_unit": "lb",
    //         "old_inventory_quantity": 20,
    //         "requires_shipping": true
    //       },
    //       {
    //         "id": 39072856,
    //         "product_id": 632910392,
    //         "title": "Green",
    //         "price": "199.00",
    //         "sku": "IPOD2008GREEN",
    //         "position": 3,
    //         "grams": 567,
    //         "inventory_policy": "continue",
    //         "compare_at_price": null,
    //         "fulfillment_service": "manual",
    //         "inventory_management": "shopify",
    //         "option1": "Green",
    //         "option2": null,
    //         "option3": null,
    //         "created_at": "2017-09-22T14:08:02-04:00",
    //         "updated_at": "2017-09-22T14:08:02-04:00",
    //         "taxable": true,
    //         "barcode": "1234_green",
    //         "image_id": null,
    //         "inventory_quantity": 30,
    //         "weight": 1.25,
    //         "weight_unit": "lb",
    //         "old_inventory_quantity": 30,
    //         "requires_shipping": true
    //       },
    //       {
    //         "id": 457924702,
    //         "product_id": 632910392,
    //         "title": "Black",
    //         "price": "199.00",
    //         "sku": "IPOD2008BLACK",
    //         "position": 4,
    //         "grams": 567,
    //         "inventory_policy": "continue",
    //         "compare_at_price": null,
    //         "fulfillment_service": "manual",
    //         "inventory_management": "shopify",
    //         "option1": "Black",
    //         "option2": null,
    //         "option3": null,
    //         "created_at": "2017-09-22T14:08:02-04:00",
    //         "updated_at": "2017-09-22T14:08:02-04:00",
    //         "taxable": true,
    //         "barcode": "1234_black",
    //         "image_id": null,
    //         "inventory_quantity": 40,
    //         "weight": 1.25,
    //         "weight_unit": "lb",
    //         "old_inventory_quantity": 40,
    //         "requires_shipping": true
    //       }
    //     ],
    //     "options": [
    //       {
    //         "id": 594680422,
    //         "product_id": 632910392,
    //         "name": "Color",
    //         "position": 1,
    //         "values": [
    //           "Pink",
    //           "Red",
    //           "Green",
    //           "Black"
    //         ]
    //       }
    //     ],
    //     "images": [
    //       {
    //         "id": 850703190,
    //         "product_id": 632910392,
    //         "position": 1,
    //         "created_at": "2017-09-22T14:08:02-04:00",
    //         "updated_at": "2017-09-22T14:08:02-04:00",
    //         "width": 123,
    //         "height": 456,
    //         "src": "https:\/\/cdn.shopify.com\/s\/files\/1\/0006\/9093\/3842\/products\/ipod-nano.png?v=1506103682",
    //         "variant_ids": [
    //         ]
    //       },
    //       {
    //         "id": 562641783,
    //         "product_id": 632910392,
    //         "position": 2,
    //         "created_at": "2017-09-22T14:08:02-04:00",
    //         "updated_at": "2017-09-22T14:08:02-04:00",
    //         "width": 123,
    //         "height": 456,
    //         "src": "https:\/\/cdn.shopify.com\/s\/files\/1\/0006\/9093\/3842\/products\/ipod-nano-2.png?v=1506103682",
    //         "variant_ids": [
    //           808950810
    //         ]
    //       }
    //     ],
    //     "image": {
    //       "id": 850703190,
    //       "product_id": 632910392,
    //       "position": 1,
    //       "created_at": "2017-09-22T14:08:02-04:00",
    //       "updated_at": "2017-09-22T14:08:02-04:00",
    //       "width": 123,
    //       "height": 456,
    //       "src": "https:\/\/cdn.shopify.com\/s\/files\/1\/0006\/9093\/3842\/products\/ipod-nano.png?v=1506103682",
    //       "variant_ids": [
    //       ]
    //     }
    //   }
    // }

    fmt.Println("Example Completed.")

    rest.DisposeRest()
    jsonReq.DisposeJsonObject()
    sbReq.DisposeStringBuilder()
    sbJson.DisposeStringBuilder()
    json.DisposeJsonObject()