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Add QueryParameters protocol to provide interface for URL query.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| import Foundation | ||
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| /// `QueryParameters` provides interface to generate HTTP URL query strings. | ||
| public protocol QueryParameters { | ||
| /// Generate URL query strings. | ||
| func encode() -> String? | ||
| } |
20 changes: 20 additions & 0 deletions
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Sources/APIKit/QueryParameters/URLEncodedQueryParameters.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| import Foundation | ||
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| /// `URLEncodedQueryParameters` serializes form object for HTTP URL query. | ||
| public struct URLEncodedQueryParameters: QueryParameters { | ||
| /// The parameters to be url encoded. | ||
| public let parameters: Any | ||
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| /// Returns `URLEncodedQueryParameters` that is initialized with parameters. | ||
| public init(parameters: Any) { | ||
| self.parameters = parameters | ||
| } | ||
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| /// Generate url encoded `String`. | ||
| public func encode() -> String? { | ||
| guard let parameters = parameters as? [String: Any], !parameters.isEmpty else { | ||
| return nil | ||
| } | ||
| return URLEncodedSerialization.string(from: parameters) | ||
| } | ||
| } |
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19 changes: 19 additions & 0 deletions
19
Tests/APIKitTests/QueryParameters/URLEncodedQueryParametersTests.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| import XCTest | ||
| import APIKit | ||
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| class URLEncodedQueryParametersTests: XCTestCase { | ||
| func testURLEncodedSuccess() { | ||
| let object: [String: Any] = ["foo": "string", "bar": 1, "q": "こんにちは"] | ||
| let parameters = URLEncodedQueryParameters(parameters: object) | ||
| guard let query = parameters.encode() else { | ||
| XCTFail() | ||
| return | ||
| } | ||
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| let items = query.components(separatedBy: "&") | ||
| XCTAssertEqual(items.count, 3) | ||
| XCTAssertTrue(items.contains("foo=string")) | ||
| XCTAssertTrue(items.contains("bar=1")) | ||
| XCTAssertTrue(items.contains("q=%E3%81%93%E3%82%93%E3%81%AB%E3%81%A1%E3%81%AF")) | ||
| } | ||
| } |