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shopify-api-ruby/docs/usage/rest.md at main · QPC-github/shopify-api-ruby

Make a REST API call

Once OAuth is complete, we can use the ShopifyAPI::Clients::Rest::Admin client to make an API call to the Shopify Admin API. To do this, you can create an instance of ShopifyAPI::Clients::Rest::Admin using the current session to make requests to the Admin API.

Methods

The Rest Admin client offers the 4 core request methods: get, delete, post, and put. These methods each take the parameters outlined in the table below. If the request is successful these methods will all return a ShopifyAPI::Clients::HttpResponse object, which has properties code, headers, and body otherwise an error will be raised describing what went wrong.

Parameter Type Required in Methods Default Value Notes
path String all none The requested API endpoint path. This can be one of two formats:
  • The path starting after the /admin/api/{version}/ prefix, such as products, which executes /admin/api/{version}/products.json
  • The full path, such as /admin/oauth/access_scopes.json
body Hash(any(Symbol, String), untyped) put, post none The body of the request
query Hash(any(Symbol, String), any(String, Integer, Float)) none none An optional query object to be appended to the request url as a query string
extraHeaders Hash(any(Symbol, String), any(String, Integer, Float)) none none Any additional headers you want to send with your request
tries Integer None 1 The maximum number of times to try the request (must be >= 0)

Note: These paramaters can still be used in all methods regardless of if they are required.

Usage Examples:

Perform a GET request:

# Load the current session to get the `accessToken`.
session = ShopifyAPI::Utils::SessionUtils.load_current_session(headers, cookies, is_online)

# Create a new client.
client = ShopifyAPI::Clients::Rest::Admin.new(session: session)

# Use `client.get` to request the specified Shopify REST API endpoint, in this case `products`.
response = client.get(path: "products")

# Do something with the returned data
some_function(response.body)

Perform a POST request:

# Load the current session to get the `accessToken`.
session = ShopifyAPI::Utils::SessionUtils.load_current_session(headers, cookies, is_online)

# Create a new client.
client = ShopifyAPI::Clients::Rest::Admin.new(session: session)

# Build your post request body.
body = {
  product: {
    title: "Burton Custom Freestyle 151",
    body_html: "\u003cstrong\u003eGood snowboard!\u003c\/strong\u003e",
    vendor: "Burton",
    product_type: "Snowboard",
  }
}

# Use `client.post` to send your request to the specified Shopify Admin REST API endpoint.
client.post({
  path: "products",
  body: body,
});

for more information on the products endpoint, check out our API reference guide.

Override the api_version:

# To experiment with prerelease features, pass the api_version "unstable".
client = ShopifyAPI::Clients::Rest::Admin.new(session: session, api_version: "unstable")

Pagination

This library also supports cursor-based pagination for REST Admin API requests. Learn more about REST request pagination.

After making a request, the next_page_info and prev_page_info can be found on the response object and passed as the page_info query param in other requests.

An example of this is shown below:

session = ShopifyAPI::Utils::SessionUtils.load_current_session(headers, cookies, is_online)
client = ShopifyAPI::Clients::Rest::Admin.new(session: session)

response = client.get(path: "products", query: { limit: 10 })

loop do
  some_function(response.body)
  break unless response.next_page_info
  response =  client.get(path: "products", query: { limit: 10, page_info: response.next_page_info })
end

Similarly, when using REST resources the next_page_info and prev_page_info can be found on the Resource class and passed as the page_info query param in other requests.

An example of this is shown below:

session = ShopifyAPI::Utils::SessionUtils.load_current_session(headers, cookies, is_online)

products = ShopifyAPI::Product.all(session: session, limit: 10)

loop do
  some_function(products)
  break unless ShopifyAPI::Product.next_page?
  products = ShopifyAPI::Product.all(session: session, limit: 10, page_info: ShopifyAPI::Product.next_page_info)
end

The next/previous page_info strings can also be retrieved from the response object and added to a request query to retrieve the next/previous pages.

An example of this is shown below:

session = ShopifyAPI::Utils::SessionUtils.load_current_session(headers, cookies, is_online)
client = ShopifyAPI::Clients::Rest::Admin.new(session: session)

response = client.get(path: "products", query: { limit: 10 })
next_page_info = response.next_page_info

if next_page_info
  next_page_response =client.get(path: "products", query: { limit: 10, page_info: next_page_info })
  some_function(next_page_response)
end

Error Messages

You can rescue ShopifyAPI::Errors::HttpResponseError and output error messages with errors.full_messages

See example:

 fulfillment = ShopifyAPI::Fulfillment.new(session: @session)
  fulfillment.order_id = 2776493818000
  ...
  fulfillment.tracking_company = "Jack Black's Pack, Stack and Track"
  fulfillment.save()
rescue ShopifyAPI::Errors::HttpResponseError => e
  puts fulfillment.errors.full_messages
  # {"base"=>["Line items are already fulfilled"]}
  # If you report this error, please include this id: e712dde0-1270-4258-8cdb-d198792c917e.

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