---
schema_version: "1"
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title: Schema Structure
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/graphql-api/graphql/guides/schema-structure.md
canonical_url: https://developer.salesforce.com/docs/platform/graphql/guide/schema-structure.html
source_site: developer.salesforce.com
content_type: documentation
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products:
  - GraphQL API
---
# Schema Structure

Send your query via a POST HTTP request to the [`graphql` endpoint](/docs/platform/graphql/references/graphql?meta=Send%2BQuery):

```
https://{MyDomainName}.my.salesforce.com/services/data/v{version}/graphql
```

Replace these values:

- `MyDomainName`: A custom subdomain specific to a Salesforce org. For example, `companyname` creates the URL `https://companyname.my.salesforce.com`.
- `version`: A Salesforce API version in the format XX.X. For example, 57.0.

Within the Salesforce GraphQL schema, there are [a number of conventions](https://developer.salesforce.com/docs/platform/graphql/guide/schema-conventions.md) that the types adopt to ensure the schema performs as expected for your record data. For example, while most GraphQL servers don't include a version in the url to the GraphQL endpoint, the Salesforce GraphQL schema does.

**tip:** Explore and learn GraphQL API using [Altair GraphQL Client](https://developer.salesforce.com/docs/platform/graphql/guide/get-started-graphql.md) or using our [Postman Collection](https://developer.salesforce.com/docs/platform/graphql/guide/get-started-postman.md).