# Wave Developer Documentation
Scraped from [Wave Developer Portal](https://developer.waveapps.com/hc/en-us/categories/360001114072)
## Get Started
- [Learn GraphQL](learn-graphql.md)
- [Clients](clients.md)
- [Errors](errors.md)
- [Variables](variables.md)
- [Pagination](pagination.md)
## Create an App
- [Create a Wave Account and Test Businesses](create-a-wave-account-and-test-businesses.md)
- [Manage Applications](manage-applications.md)
- [Authentication](authentication.md)
- [OAuth Guide](oauth-guide.md)
- [OAuth Scopes](oauth-scopes.md)
## Examples
- [Query: Get user](query-get-user.md)
- [Query: List businesses](query-list-businesses.md)
- [Query: List countries (constants)](query-list-countries-constants.md)
- [Query: List and sort customers](query-list-and-sort-customers.md)
- [Query: Get customer by id](query-get-customer-by-id.md)
- [Query: Paginate list of products](query-paginate-list-of-products.md)
- [Query: Filter accounts](query-filter-accounts.md)
- [Query: List invoices](query-list-invoices.md)
- [Query: List invoices by customer](query-list-invoices-by-customer.md)
- [Mutation: Create customer](mutation-create-customer.md)
- [Mutation: Patch customer](mutation-patch-customer.md)
- [Mutation: Create product/service](mutation-create-product-service.md)
- [Mutation: Create invoice](mutation-create-invoice.md)
- [Mutation: Patch Invoice](mutation-patch-invoice.md)
- [Mutation: Send invoice](mutation-send-invoice.md)
- [Mutation: Create Money Transaction](mutation-create-money-transaction.md)
## Schema
- [API Playground](api-playground.md)
- [API Reference](api-reference.md)
- [Versioning](versioning.md)