httpexpect
End-to-end HTTP and REST API testing for Go
...URL path construction, with simple string interpolation provided by go-interpol package. URL query parameters (encoding using go-querystring package). Headers, cookies, payload: JSON, urlencoded or multipart forms (encoding using form package), plain text. Custom reusable request builders and request transformers. Type-specific assertions, supported types: object, array, string, number, boolean, null, datetime. Regular expressions. Simple JSON queries (using subset of JSONPath), provided by jsonpath package. JSON Schema validation, provided by gojsonschema package.